Giovanni Greaves MD | Ophthalmologist | La Habra, CA | La Mirada, CA | PIH Health
Giovanni H. Greaves

Giovanni H. Greaves MD


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4.8 / 5 (based on 746 Reviews) View 159 Comments

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Dr. Greaves is a board certified and fellowship-trained ophthalmologist. He earned his medical degree from the University of Pennsylvania/Perelman School of Medicine and completed his residency at Northwell Health, formerly North Shore-Long Island Jewish health system in New York where he also served as chief resident. He completed his fellowship in medical retina at UCLA at the Jules Stein and Doheny Eye Institutes. Dr. Greaves has experience in cataract surgery, pterygium excision and managing various medical retina conditions including age-related macular degeneration, diabetic retinopathy, vein occlusions, vitreous floaters, retinitis pigmentosa and other genetic diseases of the retina and macula. He enjoys playing recreational tennis, table tennis and racquetball.

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians





  • Ophthalmology


Medical School

University of Pennsylvania Medical Center (Philadelphia)


Christiana Care Health System-Newark (Delaware)


Long Island Jewish Medical Center (New York)


Jules Stein Eye Institute

Board Certifications

  • Ophthalmology


Patient Reviews

September 12, 2022
I don't think I have ever had such a thorough examination! Everyone was so kind a friendly.
September 02, 2022
overall it is pleasant
August 31, 2022
I am very pleased with the care provided by Dr.Greaves. He always listens and provides valuable feedback. The entire staff is welcoming and professional.
August 30, 2022
Had eyes dilated was not given any dark glasses had problem seeing in parking lot actually fell
August 29, 2022
Because my next appointment is a year out I couldn't schedule next appointment. But this time I'm setting up on my calendar to call at least 3-4 months in advance, as appointments are not readly available.
August 26, 2022
Kind friendly staff and the doctor is very kind.
August 23, 2022
very caring and competant treatment from all the staff and doctor---very pleased with this service!
August 23, 2022
I hope they will sterilize the machine that goes on your claim more thoroughly .
August 22, 2022
Everything very professional and friendly.
August 22, 2022
Was not told about eye drops and not able to drive yourself,not given glasses to go outside. No one cared, I went downstairs to go to my car and realized I couldn't see,so I went back upstairs to ask for glasses. Had hard time driving home.
August 22, 2022
Hello, I was very, very happy with her and she was a very, very nice understanding.
August 22, 2022
Every one were very nice, attentive and professional! Thank you
August 19, 2022
The doctor was very professional and explained everything to me very well, in addition to that he was very kind and gave me all kinds of information, I was very comfortable with him, thank you.
August 18, 2022
Everyone was patient and very helpful with my mother, who is 91 years old. Everyone took the time to explain to her what was happening and what they were going to do.
August 12, 2022
Dr Greaves has always been very respectful and so has everyone in his office I love going to visit and see his office it gives me a secure and easy feeling thank you so much for all that you do for me
August 10, 2022
Dr Greaves and his staff were very knowledgeable, friendly, and informative
August 09, 2022
Office staff, PA, and Doctor Greaves were very professional, answered questions. I left feeling very good about the whole experience
August 05, 2022
Great as usual!
August 04, 2022
The staff was very friendly.
August 04, 2022
The staff and Dr Greaves are very kind, courteous, and professional. I have referred family here also.
August 03, 2022
I Was able to get an appointment for same day. Dr G took the time to exam my eyes Si I was grateful for that. Thank you ?
August 03, 2022
Dr Greaves explained my results in a way I could understand in detail. He is very kind and respectful doctor.
August 03, 2022
Always enjoy my visit Dr. Greaves, he explains everything he is doing and answers any questions I may have.
July 29, 2022
True professionalism by the whole staff
July 27, 2022
Very friendly office and medical staff. I felt very comfortable.
July 21, 2022
Dr.Greaves is very professional and I feel at ease with him.
July 19, 2022
Yes, I was satisfied with visit with Dr. Greaves as he a answered questions for follow up to my eye problems.
July 19, 2022
Dr. Greaves was very patient and knowledgeable. He listened to my questions and concerns attentively. I really appreciated the fact that the office could accommodate me on a same day basis, and I thanked them along with Dr. Greaves. Excellent experience!!
July 18, 2022
It would be good if PIH had an office in the Long Beach area as it is usually a 30-45 minute drive from my home.
July 15, 2022
Helpful and friendly Doctors and staff
July 08, 2022
He was great. He was one of the best doctors I have seen. In the office, they're all young and all they're doing is gabbing and laughing and standing around together talking. Seems to me there's too many people working, maybe one should go, but then that's just my opinion. I believe in hard work, those girls did not look like they were working hard and they really don't say hello and just it's just kind of weird but the doctor was great. Thank you.
July 07, 2022
Everyone at this office was kind and professional. The office was clean, but, there was a strange smell.
July 07, 2022
Knowledgeable and professional.
July 07, 2022
Good. Everybody was nice and professional. Dr. Greaves explained everything clearly to me.
July 05, 2022
It was very comfortable to be with and explained everything to me. Yes, I would offer for my family to go to him. Thank you.
July 01, 2022
Everything was very good. I am very happy with the doctor and that's office. Thank you.
June 29, 2022
We need a office closer to Montebello for eye care.
June 24, 2022
Not enough chairs in the waiting room
June 24, 2022
So I would like to talk about the doctor who treated me, he is a very fine person, very educated, you know too much and he gave me enough time to respond and he is very accurate, that is all I can talk about, he is a very complete doctor, thank you and goodbye.
June 22, 2022
Dr. was very nice and showed respect towards my Mom (who has dementia), explaining everything to both of us. We didn't get our next appointment scheduled due to being a year away but receptionist noted in computer to give us a call to schedule appointment near time frame.
June 21, 2022
Too long a wait to be seen by doctor Appointment was 1:15pm. and left office at 2:45pm
June 21, 2022
The Dr. was very nice to me, I can not hear well, he tried to speak up and speak slowly for me when I asked him to.
June 20, 2022
Dr. Greaves did not make me feel rushed. He listened and responded appropriately. I am confident in his training and very comfortable under his care. The time I spent in the office was reasonable and they had to move me to another room because of some urgent situation, perfectly acceptable. Staff was courteous and well trained.
June 16, 2022
Very professional office. Very kind people. Listen to what you need to make you feel good when you leave. Thank you for your service.
June 16, 2022
Dr. Greaves is always extremely polite, respectful and thorough, as are the members of his staff. (name removed) did my pre exam testing, and she was delightful!
June 03, 2022
Dr. was courteous and professional.
May 31, 2022
I had a great experience in the office with all the staff
May 27, 2022
(name removed) although temporary she did an excellent job getting me in the room on time and was extremely courteous.
May 27, 2022
Provider was knowledgeable, caring, attentive. Office staff seemed distracted.
May 24, 2022
Hi. Yes, Dr. Greaves is very kind, very professional, he explained very well the prescriptions.Thank you.
May 23, 2022
An EYE OPENING Experience !
May 20, 2022
nothing everything was great
May 20, 2022
May 17, 2022
Nothing, I just want to say that Dr. Greaves was excellent to me, thank you.
May 16, 2022
He answer all my questions, and I was happy the way say everything to me, I will recommend to anybody. Thank you for the good service I got.
May 13, 2022
Excellent customer service! On time
May 12, 2022
The office called the day before to tell me to come in 15 minutes earlier for my appointment, which was no problem. The wait however was long and other patients were complaining about why did they have us come early to wait longer and I agreed.
May 04, 2022
Courtious, good service!
May 03, 2022
Dr Greaves was very open to answer my questions and willing to explain anything I did not understand. Very friendly and personable.
April 28, 2022
Experience is fine.
April 28, 2022
Spoke to me as a physician to a physician. Very much a gentleman and did a thorough exam.
April 27, 2022
Being treated at this facility was a great experience checking me and putting me on track about my eye care was very educational to me. From the exam to the staff, they make you feel like you are important and to focus on good health care for your eyes. I could not believe the extent of the education that they do provide you with. Today I will take better care of my eyes. They are very important to your health care. Thank you, Doctor, for your kindness and professional diagnoses you are my #1 in my book as my provider.
April 25, 2022
You feel like the doctor and the staff are caring people
April 25, 2022
The Dr. Explained everything in easy to understand detail.
April 22, 2022
The doctor was very thorough, friendly and provided me with answers to my questions.
April 22, 2022
The nurses were very nice and made me comfortable while taking the eye tests. Dr.Greaves explained everything very clear to my daughter and me. I did not feel rushed at all. Thank you very much. (PHI removed).
April 19, 2022
I really appreciate Dr. Greaves. I had gone in, very nervous, very apprehensive. And he really made me feel comfortable and optimistic, and he calmed my nerves. And as a patient, who has been through a whole lot, prior, I really appreciated that so much. Thank you.
April 19, 2022
Have complete trust on him as a physician
April 18, 2022
(Name removed) the staff treat me very well. The treat me like a 10 and my doctor explain everything to me. So I definitely definitely provide him to my friends and family members. He is a very good doctor, again from 1 to 10 I gave him a 10.
April 14, 2022
Dr very patient and brief on my visit.
April 08, 2022
All the medical staff were very professional and courteous. The doctor was also very professional as well very courteous. I'm very lucky to have The PIH watching out for my health.
April 05, 2022
The eye care technician was amazing! Unfortunately I am unable yo recall her name, but she was comforting and knowledgeable.
April 01, 2022
Dr. Greaves made me feel comfortable during the examination time. He spoke calmly with a low tone of voice.
April 01, 2022
Very pleasant experience. Great staff, cordial and respectful. Clean establishment as well. Keep up the great work!
April 01, 2022
Dr Greaves was professional, kind and thoroughly. The physical building needs a little help. The team was great.
March 31, 2022
I took my mother to P.I.H. ophthalmology appointments 6-8 times a year for 20 years. I always anticipated waiting 30-45 minutes before being seen. This ophthalmology office and team, from receptionist to varied tech specialists to doctor, had the most incredible timely flow of professionalism. I estimate 5 minutes wait to be seen and 5 minutes between 3 tests. This was by far my bestest P.I.H. appointment experience ever. I'm pleased to see new doctors (to help ease the patient load) and hope this team has already earned bonuses of some sort for their timeliness and how they treat people.
March 29, 2022
I have visited Dr. Giovanni Greaves offices in both La Habra and La Mirada for over 2 years. Each visit has been a positive and pleasant one. Dr. Greaves is the consummate professional!!
March 28, 2022
My visit with Giovanni Greaves was excellent. He always listens to my concerns and and answers all my questions. He takes time and explains all aspects of my condition and what I should expect. I have complete confidence in Dr. Greaves. I have recommended Dr.Greaves to several friends. The staff and facility are great. I am very grateful to have Dr. Greaves.
March 28, 2022
Everyone was very professional and attentive
March 25, 2022
Nothing except that I had an excellent experiece.
March 25, 2022
I received a letter from my provider indicating I was due for an annual eye dilation and sure enough when I checked my calendar I was in fact due next month. When I called the office I was told the first appointment available was FOUR AND A HALD (4 1/2) MONTHS out. As a high risk patient I didn't feel I could wait that long even though my previous exam was perfectly normal. After many phone calls and much complaining I was given a sooner appointment at a different location a ONE HOUR drive from my home. Had I not fought (and why I should have to fight just to get an appointment with in a reasonable time frame is beyond me) for a sooner appointment I would never have known that my eye exam went from normal last year to critical this year. Imagine what condition I'd be in if I waited the 4 1/2 months for the next available appointment. If PIH has a provider with a booking lead time of greater the 4 weeks at ANY GIVEN office/location he/she services it's a sure indication that you need to hire more providers. This is not the first time I have had a problem with a specialist's booking lead time. It is beginning to look like chronic problem with PIH and I may be an indicator that I need to start looking at a new medical group.
March 25, 2022
Great doctor very patient and listens
March 24, 2022
Took almost 2 months to get this appointment and Unable to get my next appointment/test for 2-1/2 months more. That is not acceptable.
March 22, 2022
They are always nice helpful and kind.
March 18, 2022
Dr Greaves is very dedicated to making my sight better.
March 18, 2022
Office staff and physician are always professional and thorough. Very courteous and respectful.
March 17, 2022
I was satisfied.
March 17, 2022
It was a pleasurable experience for an unpleasant medical problem. He was considerate, thorough, and competent.
March 16, 2022
Very nice staff
March 16, 2022
Everything was great.
March 10, 2022
Dr. Greaves listened to my concerns, obtained background on my current condition and explained what my condition was and what medical recommendations would provide benefit and relief. Dr. Greaves conveyed a professional and empathic manner throughout my visit. Thank you.
March 10, 2022
It was difficult to walk to office considering there was no valet parking at 6pm and all handicap parking were taken.
March 04, 2022
Everything in the attention was excellent very well.
February 28, 2022
All the staff including the Dr were very kind, I felt very confident and all my doubts that I had the doctor, he clarified them for me and the assistant that he had spoke in Spanish and was very kind very very very excellent service and I was very very happy , Thank you.
February 25, 2022
Clean office and friendly staff.
February 16, 2022
Very happy, very kind, the doctor from the office staff, very kind, I am very grateful to Dr. Giovanni, he is very personal, great doctor, I love him very much and he treated me very well, thank you.
February 14, 2022
Behavior time and studies are short
February 10, 2022
The staff and Doctor made the experience very pleasant.
February 03, 2022
Dr. Greaves is very good with keeping you updated on your medical condition with scheduled appointments and informing you on how your eye health is doing.
February 01, 2022
He is a great doctor, but the office is always about an hour late. That is frustrating.
February 01, 2022
My experience with PIH and their staff in any office that I go it has been very positive and very productive experience. Thank you
January 28, 2022
great from start to finish
January 27, 2022
Dr. Greaves was very caring and supportive.
January 27, 2022
Yes, was very pleased with the help that they gave me in processing paperwork. So, I would definitely recommend them. Thank you.
January 25, 2022
I was extremely satisfied with the care and personal attention of Dr. Greaves and his staff.
January 21, 2022
The magnificent facilities have treated me very well, the girls are very attentive, the doctor is very professional, I am very happy with the service. Thanks a lot.
January 21, 2022
I felt that I had a emergency and I was able to see a physician at the last minute of the day. And I was really scared. My regular doctor what's not available but doctor Greaves was available. He was very professional. This was the first time I ever seen him and he made me feel very comfortable. Luckily everything what's okay. I couldn't ask for better Eye doctors than Dr Dudeja's office. Thank you so much.
January 14, 2022
This office is run with great efficiency. The staff is warm and friendly. They also inform you of every procedure and what it is for. This is very true of Dr Greaves. Thanks for hiring such competent associates.
January 10, 2022
He was very through, explained, & answered any questions I had.
January 07, 2022
I wish the Dr, explained to me in a more through way, what is happening to my eyes, and what are the things I need to do to protect my eyesight.
December 30, 2021
Because yours is going very well and I like it a lot, she is very happy with the treatment of everything. Thank you for having him in your office and bye.
December 27, 2021
I felt very comfortable as a patient of Dr. Greaves. He treated me well. Everything went out, went perfect. He explained everything and so far, we're dealing with the....with the problem, but I have no problems with him whatsoever. The ER staff are great.
December 27, 2021
Excellent service.
December 27, 2021
From front office staff to Dr I've found everyone very friendly, polite and professional!
December 23, 2021
I am very grateful to the staff and to the doctor in the office. I am very happy and I said they made me, I will be very satisfied very grateful.
December 21, 2021
Overall, I had a wonderful experience. I cannot at the moment think of the lady that did all my testing before Dr. Greaves came in, but she too was absolutely outstanding. Her customer service, her explaining things, she also was amazing. And I'll be darn, I'm sure it's in my health records of who did all of that before Dr. Greaves came in and I would love for her to be recognized as well. Thank you.
December 17, 2021
Why are most doctors not available when I need my appointment. Usually more then 3 months out or more to get an appointment. This is becoming my experience with all doctors at PIH. I have a PPO not an HMO.
December 16, 2021
Office staff very friendly, assisted me as soon as I walked in, explained every step of the office visit
December 14, 2021
Everyone was very courteous and cheerful
December 13, 2021
Everyone I spoke with were friendly and extremely helpful.
December 10, 2021
I had excellent service there. Thank you, and everybody...the staff was really nice. Thank you very much.
December 10, 2021
Treated with respect and courtesy by all members of staff- good job!
December 08, 2021
I went there in an emergency and they went out if their way to help me.
December 07, 2021
Definitely all the service is very punctual. They treat me well and punctually and explain everything they are going to do and over explain the results and I am (unreadable) of the next visit in six months (unreadable) to be sure that everything is going well so I am satisfied and thank you for caring for me person for my health and for everything very grateful to God
December 06, 2021
I was very satisfied with the staff, with the way everything was handled. Everybody was very cordial. Everybody was really nice and helpful. And the doctor I felt was very kind, and very nice calming voice. And yes, I definitely go there again, I recommend. Thank you. Bye.
December 03, 2021
All staff and Doctor are very professional, and friendly.
December 02, 2021
Staff very friendly
December 02, 2021
The diffiulty scheduling a return appt. was due to their server being down at the time. This is not usually a problem, I'm sure it will be resolved shortly.
November 29, 2021
This provider is having to double book appointments. The next appointment that I have is only because I have been double booked. I don't know what can be done to resolve this problem. I had rescheduled this appointment because I gave up waiting for the last appointment after an hour. So no, as much as I respect/like this doctor, recommending him only makes matters worse if they're already double booking.
November 19, 2021
Pleasant atmosphere and happy co-workers!
November 19, 2021
Nothing everything great
November 17, 2021
I would like a provider closer to Montebello. Thank you.
November 17, 2021
Great listener and clearly explained diagnosis and procedure
November 16, 2021
The office staff work me in a timely matter and I appreciated that and the doctor was so thorough and explained everything, and I really did appreciate that.
November 16, 2021
He is very caring. Listens. Asks pertinent questions re general health. I trust him with my care. And the front office is well run too.
November 16, 2021
I have never ever been disappointed with any service this great hospital has provided! Thank you!!
November 11, 2021
Thank you to the staff and Dr. for a pleasant appt
November 08, 2021
My father mistakenly hit a 10 and a 1, and he meant to hit the best number that, number four for both of those. There was two at the end, questions here, that he meant to hit four. Absolutely was very satisfied with the Dr. Greaves. Thank you.
November 05, 2021
Very clean, professional, timely, and personable. I'm happy I went. I had my eyes dilated and am an RN. I had trouble driving home so maybe let patients know to have someone drive them home or give them a heads up that the effects could be mild to difficult to see and when or how long the vision will be affected by light
November 04, 2021
We saw Dr. Greaves. He was very nice and polite. He explained the procedure to us. He told us that he would get back to us with a referral. He was very thorough. He took his time, he talk slow and very coherent. Very nice man. Very very nice. I would recommend for everybody.
November 04, 2021
The doctor and doctors assistance staff were very thorough, polite, respectful, and caring.
November 02, 2021
Excellent service
October 29, 2021
Always quick, courteous and informative.
October 28, 2021
Yeah, the doctor explained every question I asked him. He's very nice. All this staffs very good and very, and he listened to me, to my questions that I had to ask him. And was very patient, too. He wasn't rushing. So yes, I would definitely recommend him to my family and friends, and which I always say I enjoyed having my PIH, all my PIH doctors that I have been going to. Thank you.
October 28, 2021
Not able to get an appointment when I wanted. Waited 3 months for an appt. Need to add more staff.
October 28, 2021
Didn't have to wait very long, the office girls were very kind and when I was taken back to start the process of getting my eyes checked [name removed] was very kind and explained everything that she was going to do to my eyes. I felt very comfortable there.
October 27, 2021
Yeah, sorry. I really appreciate what the people, what the office did for me. And they they provide a very good, they are very friendly and I like that. They tell me what what is going on. There's a lot of things that I really appreciate. Okay, thank you.
October 25, 2021
Dr. Giovanni Greaves delivered to me some very bad news. My diagnosis was early on-set of [PHI removed]. I was stunned to hear this and was no longer able to comprehend what the doctor was telling me. I think that it's very important that when delivering such a serious diagnosis the doctor makes sure the patient is understanding the details of the diagnosis. He gave me an order for a special over the counter vitamin to take twice a day. I asked for a prescription for the drug and he argued with me that he doesn't write a prescription for an over the counter drug. I checked with my insurance and I am covered for this over the counter drug BUT I need to have a prescription in order for the claim to be processed. When I called the office the woman who I spoke with recited to me the same argument. When I explained why I needed it fell on deaf ears. [PHI removed]
October 21, 2021
To long of a wait for your appointment after you get there.
October 20, 2021
At first I don't know what to expect, since this is the first time to see him. After the check up I have full trust on him already
October 14, 2021
Considering all of the Covid restrictions, everyone in the office made the appointment as friendly and positive as possible. My technician, [names removed], and Dr. Greaves were both extremely attentive, professional and nice!!
October 11, 2021
Doctor and the staff gave a high level care
October 08, 2021
The best doctor ever. Thank you for taking care of my eyes. I appreciate it. Thank you.
October 08, 2021
The doctor really listened to me.
October 08, 2021
Love PIH doctors!!!
October 04, 2021
Definitely. Dr. Giovanni did a good job on me. He explained everything about my eyes. He said that I had to have my eyes checked on the back, so he did a thorough, good job on me. I liked this Dr very much, and I don't want to, I want to lose him. I would recommend this Dr to anybody. So, again, not a 10, I'd give him a hundred percent. He's one of a ... hell of a Dr. Alrighty. Thanks. See you later. Bye.
October 01, 2021
Hello. Just wanted to let you guys know it was a little bit to put this appoint with this office and the staff and their service. Our original appointment was for September 24th, and they failed to get the authorization. So we had to move the appointment to October 1st the following week and then they said that we need another [PHI removed] and they didn't bother getting that authorization and they couldn't accommodate any anytime soon because the provider wanted to see it within a week to two weeks but the staff wouldn't accommodate us for one whole month. So we had to call back talk to the office manager, you know, we had a lot of hassling with this office for the last past
October 01, 2021
Very comfortable, and I feel very safe with Dr.Greaves he walks me through the whole feature with me when you get this and I will talk to him anytime. That's all the doctors. There are wonderful. So I was just more contagious or so. Great. Thank you.
October 01, 2021
My father is [PHI removed]. The doctor explained things very clearly and patiently.
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