Armen Gregorian MD | General Surgeon | Whittier, CA | PIH Health
Armen C. Gregorian

Armen C. Gregorian MD


Colon and Rectal Surgery and General Surgery
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4.6 / 5 (based on 289 Reviews) View 58 Comments

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Armen C Gregorian MD is a board-certified general and colorectal surgeon who completed a subspecialty fellowship in colon and rectal surgery at Brown University.

Since 2011, Dr. Gregorian has practiced general and colorectal surgery at PIH Health Whittier Hospital with excellent patient care as his focus and priority. Over the last 10 years, Dr. Gregorian has grown to be a leader at PIH Health. His accomplishments include being the Chief of the Department of Surgery and now the Chair of Surgery at PIH Health Physicians. He has been recognized as a top physician, including being named as one of the top colorectal surgeons in Southern California by Los Angeles Magazine. In addition, Dr. Gregorian is committed to providing surgical care outside the United States, participating in annual surgical charity missions. He constantly strives to provide the highest level of care with compassion and dedication.

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Downey Hospital

PIH Health Physicians





Colon and Rectal Surgery and General Surgery


  • Persian (Farsi)
  • Armenian



Harbor-UCLA Medical Center (California)


Brown University-Hasbro Children's Hospital


Harbor-UCLA Medical Center (California)

Medical Education

Rosalind Franklin University of Medicine and Science

Board Certifications

Colon & Rectal Surgery (General Cert)

Surgery (General Cert)


Patient Reviews

November 16, 2021
Dr. Gregorian's office was just simply perfect. Everyone in the front office was very gracious and very helpful. The nurse that helped Dr. Gregorian with the examination was outstanding, Dr. Gregorian is an absolutely outstanding wonderful human being. I just immediately could tell this is a very special person and I have complete trust and faith in him. I've been is an, I was in the medical field for 11 years and I can tell true quality and this is one outstanding office with just outstanding people and a brilliant outstanding doctor and they all are just really magnificent human beings and I was honored to have them be there to help me. I was honored that they help me.
November 16, 2021
Dr. Gregorian & staff were very polite and courteous and was a very nice experience.
November 16, 2021
I was seen 30 minutes late after my initial appointment. Felt like my appointment was rushed.
November 10, 2021
The doctor was very helpful and understanding, and he seemed very knowledgeable about the way he explained things to me.
November 09, 2021
They explained everything to me in great detail and took their time with me
October 28, 2021
Thank you PIH! Dr. Gregorian is another awesome surgeon on your staff!
October 22, 2021
ONly problem is getting an appointment in a timely manner
October 19, 2021
I was treated very nicely and the doctor spent plenty of time and he's very good and I'm looking forward to being his patient. Thank you so much. Bye bye.
October 19, 2021
Dr. Gregorian was excellent. He listened. He has taken care of. My issues. His staff was marvelous. They did everything to get me in, in a timely manner and take care of things in the future. I would most definitely recommend Dr. Gregorian and his office staff. Thank you.
October 15, 2021
Your billing sucks. Your billing is so terrible. I could not make an appointment to see my provider. Until I fix a $64 invoice, that was over a year old. It was 2 of them. They weren't even my fault. Okay, this is not the first time it is ridiculous, that they stop me from making an appointment to see the surgeon. It was very, very unhealthy for me not to see my surgeon. After I got out of the ER room and then I find out that I can't make an appointment until I pay a $64 bill. That wasn't even my fault. That is ridiculous
October 14, 2021
I think that in the little visits I have had to clinics this has been one of the best where I have had to take my son. Excellent service.
October 12, 2021
I love PIH services and staff been with PIH for a while now thank you.
October 07, 2021
The Dr and staff where all very polite and helpful love the service.
September 23, 2021
Dr. Gregorian was most professional, through, and kind. He patiently and knowledgeably explained what a hernia is and his surgical procedure. He answered all questions in detail and comprehensible.
September 23, 2021
Dr. Gregorian's level of care, expertise, and compassion was everything I've expected from all my doctors, but unfortunately have not received. I have a few good doctors, however, I've yet to experience one who seems to be really passionate about his profession and wanting to truly help me. I'd been having some issues for some time, but after my exam, Dr. Gregorian described exactly what has been going on. I'm so thankful to have finally received the care I've been searching for. Thank you so much!
September 21, 2021
I was satisfied with the service I received from the Doctor and the entire staff.
September 14, 2021
I am greatful and feel safe to be in the hands of such a caring and wonderful team of experts. Thank them all.
September 14, 2021
Dr. Gregorian - loved his bedside manner. This type of appointment is very stressful to anyone I would assume and he was great from the moment he walked into the room and put me to ease right away. His staff was equally incredible such a nice office.
September 01, 2021
Hi, I thought, Dr. Gregorian was very thorough explained everything to me. He just was very knowledgeable about, you know, why it was there? And how he could treat me. And not only was he very nice and professional. So, if the staff, so, it was a very good experience seeing Dr. Gregorian. That was the first time I had met him. And again, I just thought he was very very professional and just very caring and thank you again for having such a great dog.
August 27, 2021
He's the best
August 26, 2021
I was surprised at how quickly I was seen by the Dr. Gregorian. The entire visit took 45 minutes. I was seen at 11:00am, evaluated by the Dr. , given my appointment and I was in my car by 11:45. Great care and service.
August 24, 2021
Dr. Gregorian was very friendly, professional. I felt at ease and also the staff. Thank you.
August 17, 2021
Everyone was helpful and kind.
August 10, 2021
He's the first Dr that didn't judge me about how much I weighed. That's very important.
July 16, 2021
Excellent Surgeon first time I met him. Listened, explained everything to me so I understood. Staff at his office was very nice.
July 08, 2021
Great experience thank you
July 07, 2021
Dr. Gregorian put my nervousness at ease. He explained what he was going to do and asked me several questions about my health issue. I was very pleased on his bedside manner.
June 30, 2021
I have been so nervous for awhile in regards to my concern,Dr. Gregorian did his check up and eased my concern.he explained to me what was going on and I left his office very happy.One of the best doctors I have.
June 17, 2021
Dr. Gregorian took the time to explain and was caring regarding my health. A caring doctor for his patients.
June 08, 2021
Good doctor and great nurse. I was sitting in the waiting room for nearly 45 minutes which is unusual. Although, once I got in the process was quick.
June 01, 2021
Excellent help and attention thanks
May 20, 2021
I added him to my list of excellent PIH doctors. I now have 4 young men treating my condition and I feel very confident that everything is going to be fine
May 19, 2021
The doctor and the staff at PIH were professional and polite.
May 12, 2021
I was made to feel that my concerns were important and was very pleased with the entire staff.
May 06, 2021
I am very pleased with the doctor and staff. Very courtesy and professional. Thank you very much.
May 04, 2021
Excellent care. Thank you all.
April 29, 2021
I've come from my previous dr in 2018 I've had for over 30 years and I've been very satisfied. Thank you for hiring the best.
April 27, 2021
April 21, 2021
Dr was very nice and explain and understood my needs. Very happy with my appt with him.
April 15, 2021
Everything was great. I was very happy with the meeting and I would recommend him to anyone. He seemed very knowledgeable and knew what he was talking about and what I needed, so I thank you.
April 14, 2021
He explained things thoroughly and was very personable
March 30, 2021
The situation that I went in with with Mr. Gregorian and was embarrassing went to say the least. I he did not make me feel embarrassed uncomfortable or anything of that sort. I was so come apprehensive going in and probably longer than I should because of it. I would totally like I went back to work until the girls don't even trip this guy's amazing. So respectful so gentle so like understanding and it was like not a big deal. You know, it it just it would just I felt so good when I left I like I like I was like he's he's amazing. Anyway. Thank you, Doctor.
March 30, 2021
Reviews said he didn't have bedside manner, I found that he did.
March 24, 2021
I feel confident that my son is in good hands with Dr. Gregorian. He is friendly, funny and kind, and is able to connect with my autistic son.
March 23, 2021
Doctor saw me right away and was very respectful and friendly.
March 16, 2021
I I found everyone from the doctor, to the nurses, everyone was just wonderful. I thank God for all of them. And if I ever had to go back, I would definitely recommend and I would go there myself again. Thank you.
March 04, 2021
He listen to me answered my questions
March 03, 2021
One of my best experiences by visiting a doctor
February 23, 2021
Dr. Gregorian was very friendly and respectful made me feel taken care of.
February 17, 2021
Doctor Gregorian the man. Everyone at PIH was great as well.
February 16, 2021
Caring, knowledgeable and fast doctor and staff.
January 26, 2021
I was very satisfied with what he has done to me, I have been very satisfied and I gladly recommend, and send other people, thank you.
January 18, 2021
I just want to say that I just so thoroughly satisfied and thrilled to have been taken care of by PIH and Dr. Gregorian's office. Every nurse, every doctor, every surgeon is the utmost professional. I don't have much experience with doctors I didn't see a doctor for many decades, but I'm glad I ended up there and I'm just so very happy. I, I don't have to have much experience to know that you're being treated well, and I just thought I couldn't ask for a better care from the time I went to emergency to the time my 1st surgery and the 2nd surgery everything was just fantastic. Thank you.
January 14, 2021
Very professional and respectful office, handling sensitive issues in the best way.
January 08, 2021
Service was great, all the nurses amazing young and they're really courteous and they give me a really great service. I'm really happy to spend 2 Days in the hospital because everybody was so nice I really appreciate everybody thank you
January 08, 2021
Thank you.
December 17, 2020
Best place to get teatea by far
December 08, 2020
This doctor is an angel. More importantly, he is a real human being.
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