Giovanni H. Greaves

Giovanni H. Greaves MD

Specialties:

Ophthalmology
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4.8 / 5 (based on 597 Reviews) View 133 Comments

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562.967.2870

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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

Profile

Gender

Male

Specialties

  • Ophthalmology

Education

Medical School

Christiana Care Health System-Newark (Delaware)

Jules Stein Eye Institute

Long Island Jewish Medical Center (New York)

University of Pennsylvania Medical Center (Philadelphia)

Board Certifications

  • Ophthalmology

Video

Patient Reviews

February 06, 2026
Thank you for your help with this matter. Much appreciation.
February 03, 2026
Very satisfied
February 03, 2026
I am always called in in a timely manner.
January 30, 2026
Dr Greaves is one of the nicest doctors I have seen. I was nervous but felt very comfortable with him. He was so nice and efficient and explained everything well. Just wonderful ! The assistant who did my eye tests before seeing Dr Greaves was also wonderful!
January 26, 2026
I think this doctor is very, very professional. I think I got all the service he could possibly give me and I feel very, very competent with him, 100%. Thank you.
January 26, 2026
Thorough and very good bedside manner. Nurse assistant, (name removed), was very good as well!
January 22, 2026
Dr. Greaves, the nurses and team are wonderful. Service was fast too. I appreciated that. Thank you so much.
January 22, 2026
My eye doctor is fantastic. He's so polite and so gentle. I really enjoy going to him and look forward to seeing him. Thank you.
January 16, 2026
Excellent physician. Dr. Greaves
January 15, 2026
We had to reschedule this appt at the La Habra office due to the elevators being down at the La Mirada Office. We showed up for an appt at the La Mirada office and the elevators were down. We use canes and are unable to climb 3 floors up the stairs. We were told the one elevator had been down for 3 months. It is very inconvenient for your patients.
January 15, 2026
Finally found a dr that listens to my concerns and actually took the time to explain his findings and advice.. Definitely a refreshing change from my previous dr who didn't seem to care or listen just nothing! I'm hoping ? this new dr brings new hope for my vision needs.
January 15, 2026
Dr. Giovanni Greaves was excellent. He went out of his way to ease my mom's exam (she is 97, and in a wheelchair). In order to examine her with the ophthalmology equipment, he adjusted to her examination instead of her needing to get out of her wheelchair. He was very patient with her. I highly recommend him.
January 13, 2026
I DID A PRE-CHECK IN....SO EASY IN AND OUT ONCE I WAS THERE FOR MY CHECK UP...THX PIH...
January 12, 2026
They treated me very well. Thank you so much.
January 08, 2026
Staff, very friendly and attentive at all times. Great customer service.
December 22, 2025
Very courteous treatment by everyone.
December 18, 2025
Dr Greaves is polite, soft spoken and and gentle. His demeanor calms me and I am able to simply breathe through a difficult procedure which is over before I have time to stress. I pray that as long as I need injections in my eye he is there to administer them to me! ??I am very grateful for Dr Greaves care.
December 12, 2025
My doctor is excellent, very courteous and professional.
December 09, 2025
This doctor is wonderful and is keeping my eyes healthy
December 09, 2025
The Doctor was very, very thorough! And a really nice personality. Made me feel completely at ease.
December 02, 2025
Hi, I just, everything's very, very good with the provider. The only thing is I don't like the techs administering part of the medication or starting the procedures to save time. I only, I don't think it's right for the technicians to do that. Thank you.
November 24, 2025
Dr. Greaves is a great doctor. He's very knowledgeable and caring.
November 24, 2025
I had a very good visit with Dr Greaves. I checked in. Shortly I was taken to have my eyes dilated and testing. Soon I was seen by Dr Greaves. He went over all my results. I had no significant changes. I am to return in one year for another evaluation. It was a very good visit with Dr. Greaves as always.
November 21, 2025
Yes, very happy with the visit that we had with Dr. Greaves and his staff. We appreciate it greatly. To all of you there, we love you all very much. Have a happy Thanksgiving, a happy Christmas, happy new year, and we'll see you soon. Thank you.
November 18, 2025
My name is (PHI removed). I had cataracts in both eyes, left and right, and I want everybody to know I had the best experience with same-day care for my left eye and my right eye. My doctor was Giovanni Greaves. Very, very fantastic doctor. Very soft-spoken, very nice. Just great, just great. I was honored to be his patient. And the staff at PIH is wonderful. Thank you so much.
November 14, 2025
Always a pleasure to see Dr Greaves! Can be difficult to get a timely appt. But excellent care.
November 14, 2025
Dr G. Greaves plan to give me an injection in 2 weeks (end Nov 2025), but the front office can not find a scheduled time. I am a patient, not a doctor, but I think it is essential to me to get the Dr's requested time for the injection! Plz respond to this/my email address: (PHI removed) Thank you, (PHI removed) (PIH patient)
November 13, 2025
This was my first experience with Dr. Greaves as my doctor is retiring, however he has seen my wife in the past and she recommended him.
November 10, 2025
Everybody in The office are so nice and supportive thank you
November 10, 2025
Dr Greaves is always extremely supportive, patient and caring. His assistant, Andy, was absolutely delightful and kind as well.
November 04, 2025
Very good service
October 31, 2025
I just need to get my process expedited for my cataract surgery, that I get my next appointment for measurement and for my appointment for my primary care, and so I can get the surgery as soon as possible.
October 31, 2025
My mom and I have been Dr (name removed) patients for many, many years. This last time, I was seen by Dr Greaves. He was also very friendly and professional. Felt very comfortable with Dr and how he explained what is going on with my eyes and my treatment. Very clear what the treatment I need to follow. Thanks to all the Doctors at the PIH eye center
October 31, 2025
this provider saw me, even though I was to see Dr (name removed), but directed to wrong location when confirmed appointment! Everyone there was kind & accommodating, that was greatly appreciated.
October 27, 2025
I really like Dr Greaves great Doctor.
October 21, 2025
Appt scheduled for 10:15 a, was asked to arrive 15 mins early; i arrived at 10:01 am, waited & Waited, at 10:45 I asked front desk how much longer, finally few mins later was called. This happens quite often at this location.
October 21, 2025
When got there alot of patients. Had 3:45 appointment, there for over hour before seen by doctor. Maybe need to recheck their scheduling?? I left office close to 5
October 20, 2025
Dr. Greaves is an excellent physician. I trust him with the care of my eyes. I've had several eye health issues since I was a child and I'm pleased to report that he is an excellent doctor and I trust him with my care and appreciate all his attention to detail and help. Thank you, Dr. Greaves.
October 10, 2025
I love that there is not a long extended wait to see doctor. It's nice to be treated as your time is as important as their time. Which it definitely is. And many other doctor appointments are extremely mismanaged and there is not a care in the world of your time and obligations.
October 09, 2025
Everything was great, everything was excellent. Thank you so much for your service.
October 09, 2025
Always a great experience going to this clinic/office. The staff are all great. Dr. Greaves is always polite, efficient, knowledgeable, and very skilled. He always listens to what we have to say and responds in a way we understand. Excellent physician!
October 07, 2025
The staff is exceptionally welcoming and so patient and helpful. From the moment we walked in to the time we left the doctors, technicians and the ladies at the desk were just perfect !! Thank you so much for allowing me to participate in this survey. :)) Sincerely, (PHI removed)
October 03, 2025
wait time is usually so long, appt at 10 am, was not seen until 11.
October 03, 2025
My next appointment could be in 2 weeks, so I hope so.
October 02, 2025
Very difficult to get a timely appointment. I have asked to see the doctor every 6 months rather than once a year because of my age and eye condition. I hope this will be honored. Dr. Greaves is an excellent doctor, and I have confidence in him. His staff is very good, as well. .
October 02, 2025
He is very professional, pleasant manner, makes you feel comfortable.
September 25, 2025
I was very much in need of someone who could help me with my double vision. And Dr. Greaves suggested the name of a Dr. (name removed), an optometrist who is in Brea who might be able to help me with establishing prism in my glasses to try to bring my vision back together. period. I am interested and pleased and excited to see if I can get things back together again in my vision.
September 22, 2025
The wait to get an appointment is impossible. I had an appointment with Dr. (name removed). He told me to call back in January when the calendar was open. Oh, it's not open. Okay, call back when they told me. Oh, now he's not doing, he's only doing cataract surgery. Okay, give me an appointment with Dr. Greaves or Dr. (name removed). Oh, that'll be months. Okay, then I called back a few weeks later and I got one in September. I do not feel that the examination was complete and I would not and will not recommend PIH Health I to anyone.
September 22, 2025
Just how grateful I am that I have Dr. Greaves for the care of my vision. Thank you!
September 19, 2025
Seem like a very good Dr , soft spoken very clear.
September 18, 2025
Yes, I would recommend Dr. Giovanni for Greaves, for Dr. Greaves. Everybody there, as you walk in, everybody's so friendly, and everybody knows your name when you come in, and everybody treats you good, from the receptionist to the nurses. Everybody in there is good. So yes, I recommend, and Dr. Greaves is a very, very good doctor. very patient and very caring too and listens to everything I have to ask him about my eyes. So I just tell him I want my eyes to stay good until I'm gone. All right, take care. Thank you.
September 12, 2025
Medical staff and Dr G. Hit a home run!! Thank you! Office staff at check in at front counter not so. You have a schedule of all your patients coming in to see you everyday. Many have co-pays. I paid my $10 copay with a $20 bill. Went and sat down. Here comes the clerk from the front counter to me, wanting to give me back my $20 as she doesn't have change. NOT My problem! Do your job and have change for cash co-pays. You're not doing your job and can't make change? But you want your money. I was badgered, " Do you have a card.?" I don't have to use a card. I paid cash with a US Treasury note that is legal tender for all debts, public and private. I completed my obligation. She returned my $20. Then said she would bill me. I completed my obligation of payment in cash. You returned it. Thank you for waiving my copay.
September 11, 2025
At check out to make a follow up six month appointment this female assistant, was busy talking to a friend or boyfriend, I had to wait for her to finish to get an six month follow up appointment only for her to say that, Dr's six month schedule was to far away for me to call back at the end of the month get next visit appointment (Incredible) I left with my eyes dilated
September 11, 2025
This was my first visit with Dr. Greaves and I was very impressed with him and his ability to explain my results with me. I will continue with my future visits to see him.
September 09, 2025
Dr. Greaves is very compassionate and good in what he does. Thanks God for doctors lile him!
August 28, 2025
Great Drs & Staff provided me with the care and information I needed???
August 28, 2025
Great service very friendly
August 28, 2025
All went well
August 28, 2025
Everyone in this office was exceptional
August 26, 2025
Very caring and patient and trustworthy person.
August 21, 2025
Everything was perfect.
August 19, 2025
He's very good
August 15, 2025
Very nice place
August 15, 2025
Everyone was very nice. Great place!
August 12, 2025
Doctor was very friendly and listened to my concerns. And, I had a very thorough eye exam.
August 08, 2025
The doctor and staff is excellent!
August 08, 2025
Not at this time.
August 07, 2025
New doctor and first time seeing him. He was very nice
August 01, 2025
Disappointed in the system...At the 8/1/25 office visit I asked about pending co pay for 1/19/24, per online check in. I definitely do not have any pending co pays on my end!! I am also told I have a co pay for Peripheral vision test!! Have never been told this in office! I have never received any info re this pending co pay! Its been 19 months!!!
August 01, 2025
VERY NIOCE AND CLEAN OFFICE
August 01, 2025
Dr. Greaves and the PIH staff are outstanding. Always a pleasure to see them.
July 29, 2025
My doctor was very understanding. The staff was very good. Very good environment.
July 29, 2025
I did not feel comfortable that he really took time and was trying to understand where I was at with my eyes. He read off the report that my other doctor had written. I wasn't happy. I'm not going back to him. Thank you.
July 29, 2025
I had two appointments with Giovanni and never saw him either appointment. All I was was tested completely over and over again in both times, not advised of the time schedule, always late. And basically what one of the persons said, this is the way we do it at this office. So I never saw the doctor at all.
July 29, 2025
Doctor is wonderful and a very nice doctor and he treat me beautiful. I like him and I gonna keep him for me and my family. Thank you.
July 25, 2025
Everything was great. I just wanted to have my issue resolved by having the "surgical procedure" that was discussed. Instead I was given more antibiotics to take for 4 weeks.
July 18, 2025
This was my first appointment with Dr. Greaves. He was professional and courteous and was very thorough with my exam and condition of my eyes. He took the time to answer all of my questions.
July 18, 2025
Dr Greaves took the time to address my concern. He was informative, patient, caring and gentle in caring for my eye problem. He is an exceptional Dr. The front office Staff was super nice and welcoming too.
July 15, 2025
This was my first time seeing Dr. Giovanni since I used to see somebody else, Dr. (name removed) before, but I was very pleased with the services that I received from him. So that's all I need to say. Thank you.
July 11, 2025
For me, the doctor is very excellent, I like him a lot, I can recommend him. The entire staff is very good, I am very happy and very grateful, I definitely recommend him and I give him a 10 out of 10, thank you. Thank you.
July 08, 2025
The assistant, (name removed), was very kind and spoke Spanish. And so did the receptionist. And thank you.
July 03, 2025
Very polite
June 27, 2025
All of the staff, from the receptionist to the gentleman, Ali, who does the testing, as well as Dr. Greaves, are very professional, very courteous, very friendly, and very accommodating. So thank you for having this kind of staff.
June 26, 2025
I didn't have to wait long at all & the doctor's gives you the upmost care.
June 23, 2025
Well, I'm very satisfied with the service I've received from the beginning. And nothing, I mean, everyone is very kind. And the doctor is very professional, with a lot of experience. And everything is fine, I have absolutely no complaints about anything. We're satisfied with you, with everyone. From my doctor, Jessica, to the doctor, everyone. I have no problems. I've always been treated very well. Everyone in the office, everyone, I have nothing to say. I'm very satisfied with you. Thank you.
June 23, 2025
It was a positive experience with the professional help and the doctor explained everything about the condition of my eyes.
June 19, 2025
This was my first visit with Dr. Greaves. I liked him very much.
June 17, 2025
Hello, my doctor was awesome. Dr. Greaves, I've seen him before. His bedside manner is wonderful. I'm very happy with him. He explains everything and he's just a great doctor. I would definitely recommend it to anyone, anytime.
June 13, 2025
Convenient and very professional also
June 10, 2025
I'd like to have more close appointments because I had an infection in my eye and I needed to wait until three months appointment. So I'd like to have more close appointments for the ophthalmologist. Thank you.
June 09, 2025
My mom had an appointment in February and had emergency surgery. We canceled it, and her next appointment took over four months. That was a long time.
June 02, 2025
I hope they have more machines to test your eyes cuz a lot are using it esp.'on flu season. Lots of pts. Are using it and I hope they clean it more thoroughly after every other patient.
June 02, 2025
Professionalism and courtesy was exhibited by all staff.
June 02, 2025
Excellent care from start to finish
May 30, 2025
Dr Greaves is AMAZING, exceptional at his craft, and professional. His calm demeanor promotes trust and eases anxiety related to having a needle in my eye.
May 23, 2025
Excellent.
May 22, 2025
Dr Giovanni always does a great job. Listens and answers all questions and shows empathy for all concerns
May 20, 2025
Excellent as usual
May 15, 2025
I was very well attended to, and the staff answered my questions. Thank you for having such a professional team.
May 12, 2025
You have a great teamwork, that's
May 12, 2025
My visit was one of the most pleasant doctor's appointments I have ever had.
May 09, 2025
Thank you, very thorough. Looking forward to the follow up visit.
May 09, 2025
Everyone including the doctor and the staff were wonderful, caring, and treated me with respect and in a timely manner.
May 06, 2025
Everyone in this office is so professional and treated with most respect. Thank you once again. Keep up the good work !?
April 17, 2025
friendly and courteous staff@
April 11, 2025
The clinic is very far from where I live, I wish there was a PIH urgent care for ophthalmology closer to me. Also, I had called PIH customer service a few days before and the person who answered did not seem to know about this clinic, and I needed urgent care. It was my primary care physician who recommended it and got me the appointment, and he knew it because he had worked in Whittier. It was time consuming and frustrating trying to get information from PIH customer service. The website didn't help either. Thank you.
April 11, 2025
It felt very appreciated. Appreciated the staff's kindness and thoroughness and I would definitely do it again. Thank you.
April 10, 2025
I'm very pleased with the treatment I got from them. They are very accurate. They are very helpful. And I really like them. I can recommend them to our rest of family and friends. Thank you.
April 10, 2025
very kind and gentle doctor.
April 07, 2025
Dr. Greaves was a fantastic and knowledgeable healthcare provider. He was sensitive to the difficult information that he needed to give me. He was thorough. He explained it with very good non-medical as well as medical terms. He asked for feedback. He talked with us and asked me any other questions. If there's anything else he could explain. All around he was just a really fantastic medical provider.
April 04, 2025
He was kind, and professional, explained everything well.
April 04, 2025
The whole staff at this office were very kind and helpful to understand every aspect of my concerns! Would very gladly and confidently refer anyone to this team!
March 25, 2025
The staff was very pleasant and helpful. Waiting room was slightly crowded, but staff kept patients moving in and out of their appointments.
March 24, 2025
Doctor was very thorough and I was done in a timely manner.
March 21, 2025
The doctor and staff listen and are compassionate.
March 21, 2025
Friendly staff, all were helpful and very good
March 20, 2025
Doctor Greaves is a caring and compassionate Doctor. He's a blessing to his patients.
March 20, 2025
They treated me very kindly the whole time
March 18, 2025
He treated me very well, I wouldn't say that because he treated me very well. He gave me an appointment early, listened to me very well, asked me questions, and was very friendly. He also treated my husband with his eyes and performed very good surgery. I would gladly recommend him because he treated me very well too.
March 13, 2025
My wait time was less than 5 minutes. My total eye exam and completion was about 10 minutes and my Doctor gave me my results on site! Thank you PIH
March 11, 2025
It is very uncomfortable when the Dr's assistant is not finished doing the eye exam and another clients comes to the room for an exam. When I talked to (name removed), she was very defensive arguing that it was not fair for other people to be waiting in the waiting room...
March 10, 2025
I recommend them to most of my family and now my wife is using them
March 07, 2025
For PIH Health Eye Care, the La Habra office is the place to go!
March 06, 2025
Well, my name is (PHI removed), and my experience with doctor on the 6th, it was very pleasant. Everybody was very attentive to help me and I was very satisfied.
March 06, 2025
He is a great doctor! I have lots of respect on him.
March 04, 2025
Everything was excellent, very satisfied with the service you received, thank you.
March 04, 2025
Well, that doctor was the best doctor I had ever seen. He was so courteous, so understanding. He is from one, from zero to ten, I think he deserves twenty. Okay. Thank you very much.
February 28, 2025
He is an excellent doctor, I recommend him to everyone. He listened to me, explained everything, and I am very, very grateful to him because he explained everything thoroughly. Everything I asked, he explained. I do recommend him. Thank you.
February 27, 2025
Appointments are difficult to schedule, it's 2 /3 months for an appointment this is very stressful!!
February 25, 2025
La Mirada PIH eye care office has a very friendly staff and always treat you with respect.
February 24, 2025
Very pleasent visit, communication with understanding.
February 21, 2025
Dr. Giovanni Greaves is always very comforting. He's very calm and takes his time to make sure that I understand everything. Thank you, Dr. Greaves.
February 20, 2025
Dr. Greaves was very patient, answered all my questions, listened to my concerns, explained in detail, did thorough exams, took his time. Made me feel comfortable. Very knowledgeable Dr. I highly would recommend him to family and friends. (name removed) was amazing, very friendly, got me an appointment as soon as possible. Went out of her way, caring individual. This type of customer service is hard to find nowadays. Leo was also friendly and welcoming. I was very nervous, but he made me feel comfortable and safe. I came out of that office feeling much better than when I went in.
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