Armen Gregorian MD | Colorectal Surgeon | Whittier, CA | PIH Health
Armen Christopher Gregorian

Armen Christopher Gregorian MD


Colon/Rectal Surgery and General Surgery
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4.7 / 5 (based on 246 Reviews) View 39 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 Good Samaritan Hospital

PIH Health Whittier Hospital

PIH Health Physicians





  • Colon/Rectal Surgery
  • General Surgery

Additional Languages

  • Armenian
  • Persian (Farsi)


Medical School

Chicago Medical School at Rosalind Franklin University of Medicine and Science


Harbor-UCLA Medical Center


Harbor-UCLA Medical Center


Rhode Island Hospital (Brown University School of Medicine)

Board Certifications

  • Colon and Rectal Surgery
  • General Surgery


Patient Reviews

June 07, 2022
I have complete confidence in my doctor & PIH.
May 31, 2022
At my experience with PIH I have a really good array of doctors and I think that my last doctor Dr. Armen can go in as one of the top doctors I seen he was very articulate and explained everything to me and I got a relief from the prescription that he gave me. So I would I would say that he's Top Notch there are few like him not very many. I could say probably about 5, but he's the Top Doctors far as I'm concerned.
May 31, 2022
This office is always polite and efficient. I feel respected here.
May 25, 2022
Good experience with doctor
May 20, 2022
He was very very understanding he took time, he explained beautifully was not in a hurry, and he concerned on our feedback. Excellent.
May 18, 2022
Dr. Gregorian, and the front office, (names removed) are very, very professional, caring (INAUDIBLE) people. And doctors and staff, thank you very much. I really appreciate them.
May 18, 2022
Only good!
May 17, 2022
Dr. Gregorian did a great job taking care of me and was able to get me done and into surgery very quickly and the care at the hospital was great and the home care was also.
May 17, 2022
I have no complaints. Everything was fine. Thank you.
May 11, 2022
I appreciate that Dr Gregorian was able to squeeze me in his busy schedule!!
April 21, 2022
Dr. Gregorian and his staff of the most professional and best care providers I've ever dealt with Dr. Gregorian did previous surgery on me and I was very pleased with the services and his staff is top notch. Thank you very much.
April 13, 2022
Best of the best
March 25, 2022
Dr. Gregorian is my guardian angel. I was dying and he saved me between him and my wife is is the reason I'm alive today. I respect that man with all my heart and all my everything. I just wish that there was some way I could repay him for all the great he has done for me and I hope he knows how much I love it. Thank you. Goodbye.
March 24, 2022
The nurses staff and Dr. Gregorian are wonderful, and I could've had better help and I thank PIH so much for them and this. Thank you.
February 24, 2022
All for now I can say that I was very pleased and happy with your care and with the help of the nurse. I am very satisfied and thank you for everything, may God take care of you and continue to give you strength and a lot of help so that you can cope with everything. Thanks!!!
February 23, 2022
from the time of my hospital stay to my follow up appointment with surgeon Dr. Armen Gregorian I had the utmost confidence and respect. The entire staff was was completely on spot regarding my care and concerns.
February 17, 2022
Dr Gregorian is very nice, passionate and very professional. It's a very nice visit.
February 09, 2022
Everybody was so nice. Dr. Gregorian was concerned and interested in my case. He was so nice and helpful. I would recommend him to my family and friends.
February 03, 2022
Fantastic service
January 14, 2022
Yes, my name is [PHI removed]. I went to my appointment and I was very dissatisfied because what the doctor told me was less than 5 minutes. He could have told me over the phone to continue taking the medication and that was it. He just went in, came out and that was not what I was looking for. I was looking for a removal of the hemorrhoids internal that I have. And that was not to be done. I was very dissatisfied. He's probably a great doctor, but with me, he didn't even spend more than 2-3 minutes.
December 21, 2021
Was an excellent doctor and I will recommend him for anybody in my family. Thank you.
December 15, 2021
good experience for me
December 14, 2021
Dr Gregorian was my surgeon while I was in the hosptial (I had 3 that checked on me during my stay) he was the only one who took the time to draw out what he was explaining to me and was very detailed about what was going on. He is very friendly, caring and professional.
December 10, 2021
The doctor & staff went out of their way to get me an appt as soon as possible which I appreciate very much. The doctor quickly let me know what was going on with my health & gave me the details of the surgery that was necessary. He did this with knowledge & care. The staff was very helpful & the scheduler walked me through the steps of setting up a surgery date & everything associated with that. She is also very helpful, patient & extremely efficient.
December 01, 2021
awesome provider with excellent staff. [Name removed] the schedule for Dr G super amazing at her job. extremely professional and detailed with instructions. awesome team
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
November 09, 2021
Hi, I just thought Dr. Gregorian was so personable. He answered all my questions. My son is.. has autism and he was very patient. And understanding with my son, and just made him feel very comfortable. And also I wanted to let you know I pushed one instead of 4 on the 1st question. So, all my... my answers were number 4 or 10. Okay. Thank you. Bye.
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.
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