Divya Mallam MD | Gastroenterologist | Downey, CA | PIH Health
Divya Mallam

Divya Mallam MD


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4.7 / 5 (based on 286 Reviews) View 85 Comments
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Divya Mallam MD is a board-certified gastroenterologist with expertise in the diagnosis and management of a wide range of gastrointestinal disorders. She was raised in Southern California and earned her bachelor's degree in neuroscience from University of California in Los Angeles and her medical degree from SUNY Downstate in New York. She completed her internal medicine residency at Harbor-UCLA Medical Center and her gastroenterology fellowship training at SUNY Downstate Medical Center. She completed additional training at Cedars-Sinai Medical Center in gastrointestinal motility and functional disorders. 

Her clinical interests include women’s health, small intestinal bacterial overgrowth, gastroesophageal reflux disease, colorectal disorders, gastrointestinal bleeding and general endoscopic procedures. She is a member of the American College of Gastroenterology, American Gastroenterological Association, and American Society of Gastrointestinal Endoscopy. 

She enjoys spending time outdoors, photography and traveling in her free time. 

Office Information

Hospital/Group Affiliation

PIH Health Downey Hospital

PIH Health Whittier Hospital

PIH Health Physicians





  • Gastroenterology

Additional Languages

  • Spanish


Medical School

SUNY Downstate Medical Center


Los Angeles County - Harbor UCLA Medical Center


Los Angeles County - Harbor UCLA Medical Center


SUNY Downstate Medical Center

Board Certifications

  • Gastroenterology
  • Internal Medicine

Patient Reviews

September 15, 2022
September 15, 2022
The only thing I wish my husband would have been able to spend more time with me I was a little scared but it's OKI was very well taken care of by everybody great staff They were very compassionate because I was Scared and upset but they helped me through it
September 14, 2022
Doctor Mallam M.D - (numbers removed) Is a excellent specialist in her field.I would recommend her too friends and family.She's Great.
September 14, 2022
Friendly, sincerely and care.
September 13, 2022
I had to wait a bit due to a delay but I was told when I got in with the nurses. Regarding my actual procedure I was in the out. I slept through the entire procedure and felt nothing at all. It was the best sleep I got a in long time, just a bit too short. The facility was clean and the staff was very helpful and kind. Dr Mallam was very professional and explained everything to me.
September 09, 2022
Yes, she was late to begin with. It didn't seem like she wanted to listen to me and she wanted to provide other kind of medication and I was telling her that this medication that I was taking for my stomach was helping me and that is my feedback.
August 24, 2022
I am extremely happy that finally. I had a doctor that listened to me, and listened to my concerns regarding my health and didn't it tried to over, over speak me, I guess you can say, she really sat there, she really listenend and answered all my questions and went over everything, all the procedures and exams and very like, it was just I left the office feeling like hopeful, feeling excited. Feeling like yes, finally. I had, you know, a good doctor that's a factor, listened to me. I think Dr. Mallam, she's awesome and she really made my day and you know, being nervous going in to visit. I left their feeling very satisfied, very happy
August 15, 2022
The staff at this clinic is very friendly and the doctor listened to me very carefully.
August 15, 2022
She is either overloaded with patients or not very good with time management. From nurse to doctor about 25 minutes. Last 2 times to see her. She's very good once she actually gets in the room.
August 09, 2022
Hi, this is PHI removed). Dr. Mallam did a wonderful job on my colonoscopy and all of the staff was very kind, attentive and helpful. I was really impressed with my time with Downy PIH. Thank you very much.
August 09, 2022
I just recently change my my my doctor because my first doctor took 6 or 7 years to send me to a specialist. So it's hard for me to to recommend that to anybody because of that reason, I think (name removed) is not a very good doctor if he doesn't, you know, rep, refer you to a specialist when you're losing weight, losing muscle mass, and just having diarrhea everyday, a 30 times a day. So, that's the only drawback I have about PIH.
August 09, 2022
The staff and especially the nurses all 100% Luxury. VERY NICE AND GOOD EXPERIENCE.
July 19, 2022
Staff was ? great from beginning to end.
July 07, 2022
I would like the appointments to not be so far apart. At this time, in order to have an appointment, it takes like 3 months. Everything else that the specialists provides is excellent service.
June 30, 2022
I just want to say that everyone from the security guard to everyone, through my process was amazing, everyone there is so nice. I just don't even know how you get so many. Nice people in one facility. Everybody is great. I wouldn't change anything and I thank you and I appreciate you.
June 30, 2022
Dr. Mallam was, was excellent. I would highly recommend her to friends and relatives took really good care of me, explained, everything well, the nursing staff over at Downy PIH was great (names removed), were all outstanding and and Dr. Mallam's office Maribel was great. Thank you.
June 30, 2022
The preparation is a lot worse than the procedure
June 29, 2022
I feel very understood with my doctor with my concerns. She explains in detail a plan for my better health. I'm looking forward to my health issues being resolved soon. Thank tou!
June 16, 2022
The whole process from checking in thru the procedure thru recovery was outstanding. Every staff member involved were great.
June 14, 2022
The anesthesiologist was awesome. The nurses, one in particular, her name was (name removed). She was awesome, and Dr. Mallam, she did an outstanding job in communicating, and checking on me. So yeah, they were awesome.
June 07, 2022
Everyone made me feel cared for
June 07, 2022
Great medical service! Very professional and punctual!
June 06, 2022
I was very disappointed at the office visit. She basically told me to find another doctor.
June 02, 2022
From the beginning to the end of my visit was excellent
June 01, 2022
The first person on the front desk did not understand much about our problem and we went inside with the nurse. She was very, very rude, very, very rough and looks like she was attacking us for every aggression and her name is (name removed). So person like this if working in the doctor's office, your patient do not get what they need.
May 26, 2022
The nurses and staff members were very nice
May 26, 2022
I felt like I was being treated as a family member I appreciate your service and God bless each and every staff member that attended to me. ?
May 26, 2022
Excelente,me atendieron super bien,desde la entrada,el registro,las enfermeras,los asitstentes,anestesiologos y la doctora ,me dijeron confianza y me senti en buenas manos,la cirugía fue muy rapida,les agradezco mucho por tener un trato tan humano conmigo,Dios los bengiga??
May 19, 2022
I was treated like a queen from the time I entered PIH. Thank you staff, nurses, and doctors!!! THE BEST!!!
May 19, 2022
The entire staff was wonderful
May 18, 2022
Dr. Mallam is a good listener and care to my questions and concerns.
May 18, 2022
Dr. Mallam listened to me, was a pleasure meeting her.
May 12, 2022
I received the prescription for the purge nearly a month prior to having an appointment for a colonoscopy. The procedure was fine, but it seemed to take forever to find out about the appointment. A pre-procedure phone message directed me to the Dr's office rather than the hospital. I called the office to be sure what to do.
May 12, 2022
All the staff were helpful, attentive and friendly.
May 10, 2022
Best doctor I have ever seen. Kind, courteous and professional.
May 10, 2022
OR staff were beyond excellent. They providing a caring environment while doing their jobs. The experience almost made me feel like as if I were at home prior to and after the procedure. I cannot say enough good things about their attentive, warm, kind, thoughtful, professional and effecient service. Thank you.
May 03, 2022
The staff in the out patient facility was amazing and pleasant.
April 29, 2022
Dr Mallam is so very kind, professional and caring. She explained all my options for treatment in a simple language and gave me the choice to choose what is good for me. She spent enough time and showed a lot of respect for what I have to say.
April 25, 2022
The consultation was only for routine questions that could have been asked over the phone instead of making me go to the office.
April 22, 2022
Doctor was not cooperative in creating a plan for my situation. Did not seem to care to follow up with concerns and only cared to schedule another appointment a month later with no real goal in mind. Doctor seemed dismissive and not helpful in creating a health plan for things that were pending. There was no trust built.
April 19, 2022
My experience was really, really good. I really felt good about the Dr. She's very, very good. The help there is awesome, they're excellent, and I couldn't be more happy with ... not a so good experience that I had to go through to get it done, but they made it really, really good, and I felt really in good hands. Thank you.
April 19, 2022
Staff members were courteous and serving happily
April 14, 2022
Friendly informative and very helpful. Thank you. Press what star key?
April 11, 2022
Thanks to all of the staff that has treated me since I began to be sick. I am so grateful. I am very grateful. I love the doctors and nurses because they treated me very well. Thank you for everything.
April 04, 2022
Very nice and personel Doctor.
March 31, 2022
At PIH Downey for my colonoscopy, a Nurse names (name removed) took care of me. He was the kindest person. He knew his work, explained my procedure and made me feel comfortable about having this done for the first time. Most of all he did the IV needle and I ALWAYS have two or more pokes before someone gets it in right. He heard me and got it on one try...THANK YOU! I appreciate him!
March 30, 2022
She did really good. I really appreciate it. I'm so happy meet Dr. Divya. Thank you.
March 28, 2022
I really appreciate the service I receive from Dr. Mallam. Thank you for being so kind and caring.
March 25, 2022
My experience with Dr. Mallam was very professional. She an extreme... extremely well listener. She's extremely detailed in explaining, so that you would know, which I expect what the expectations are. And I love the way she is. Personality wise business wise, everything about her as just was very pleasant. As well as the staff from the initial meeting. And yes, I would definitely recommend her. She's a lovely doctor. And once again, she is very quick to listen, and quick to provide information and details. She doesn't make you feel rushed and I love that about her. So, Dr. Mallam, thank you very much.
March 25, 2022
Everything's fine
March 25, 2022
Dr. Was extremely polite and professional however I waited Exactly 1hr to be seen. Staff did not come to advice of any delay until we asked how long to be seen
March 11, 2022
I have to wait 40 minutes
March 04, 2022
Question number one In the first question they asked me, I was wrong to mark one, but it must be 3 because the doctor always treated me well, therefore, I would highly recommend the doctor, because she is very professional and is a very capable person. and she is very respectful and gives her time to patients, so I highly recommend her, thank you.
March 02, 2022
The doctor spent a lot of time with us explaining everything, she was very kind.
February 25, 2022
She was so Lovely to be around made me feel so comfortable
February 16, 2022
Dr. Mallam, Had a great experience she took over (name removed). She was very friendly and courteous. She really listened to all my concerns.
February 10, 2022
Just an awesome experience for my first colonoscopy. The staff was wonderful and respectful.
February 09, 2022
The doctor listened to me very carefully and was very kind to me.
February 08, 2022
She is was caring . She listens and she is a very nice . I really like her !! The GI doctors in Whittier are the total opposite!! That are horrible!! Have huge egos, and talked down to me ..
January 31, 2022
[name removed] was excellent I understood everything. She was telling me on the 31st i will go back to her.
January 27, 2022
all the staff was very nice, helpful and courteous
January 27, 2022
Very serviceable surgical staff. Everyone made me feel comfortable through the process.
January 24, 2022
The doctor was very friendly and listened to my questions about my concerns. I was very happy with her.
January 24, 2022
Had to wait 30 minutes to be seen. That's to long to be waiting. Y'all need to do better with patients appointments
December 23, 2021
My experience with PIH Downey was excellent from the time I went in and the security guard took my temperature, to the people checking me in. Also the nurses and the team that was assisting my Doctor, and the Doctor made me feel really comfortable about the procedure that I had done and I remember what the anesthesiologist said right before I went under he said don't worry [name removed] will be here to take good care of you. Sincerely [name removed]
December 22, 2021
Very caring about my health.
December 21, 2021
I would like to start by giving kudos to the security officers at the entrance of the hospital who were very polite and informative in helping me find where to go. I also appreciated the office staff who helped me complete my paperwork prior to the procedure, hey presented as friendly and kind. The nursing staff who helped with the pre-procedure prep process were outstanding at decreasing my anxiety and we're very attentive. Also, the nursing staff in the procedure room we're supportive and professional. Lastly, the nursing staff in the post-op recovery area were wonderful. I felt they spent the time to help me get my bearing and went above and beyond I their level of support. I really appreciated the anesthesiologist and the proctologist spent time explaining the procedure and checked in with me after the procedure. This was very helpful. My only feedback was that the procedure was scheduled for 9 am, but it did not start until about 10:30 am. This delay increased my anxiety and there was no explanation as to why this delay happened. Overall, a very good experience. Thank you Respectfully, [PHI Removed]
December 10, 2021
I really like the doctor. This the first time that I've seen the doctor and she did things real quickly, and I was waiting for 6 months for an appointment and thank God that I got the appointment right away. I thank her for that, and I was pleased.
December 09, 2021
I was very pleased with Dr. Mallam. She gave me the type of service I really appreciated, being able to speak with her before and after the procedure was very nice. I have recommended her already to others.
December 09, 2021
December 08, 2021
This is my first time seeing Dr Mallam. I was impressed she seems to be very proactive
December 08, 2021
Dr. Mallam is a wonderful and caring physician.
December 01, 2021
I felt extremely comfortable. She explained it very well answered my questions. Looking for to follow up treatment.
November 24, 2021
Well, I definitely got the doctor's attention. It was magnificent, we are very happy and I would recommend it 100% to them, excuse me, thanks.
November 22, 2021
First visit with Dr Mallam. Was impressed with her knowledge of my case and her efforts to ensure my care is exactly what I need. I enjoyed the visit. Her staff was efficient and friendly
November 22, 2021
It was so good. Thanks
November 22, 2021
Yes, I was treated like I was supposed to. Hopefully, everything works out and yeah, that doctor really paid attention to my to my sickness, and hopefully it gets taken care of. Hey, so I didn't have any problems and, you know, on any of that, and I'm happy with it. Thank you very much.
November 19, 2021
I went to see this doctor for a reason that cleared up by the time I got there, so I felt like I shouldn't have wasted the doctors time. This doctor was nice but I didn't need any treatment.
November 17, 2021
She took time to go over my colon surgery report and assured me she would keep me updated on my remission by doing labs and colonoscopy. Very good visit.
November 11, 2021
Over all it was a great experience. Building could use some remodeling. Or at minimum replace leaky sink faucet and non working lights. Thank you
November 09, 2021
Dr. Mallam was very courteous, spent time explaining everything, thoroughly answered all my questions.
November 05, 2021
This doctor is Amazing!!! Not only was she prepared and it was obvious she had reviewed my history. It is extensive since I have been I'll the past year. Whittier GI told me there was nothing they could do which I knew did not sound right. Dr. Mallam listen to my concerns and frustrations. She gave me hope that I will get back in track. I am blessed that I compassionate doctor that is so intelligent, professional and kind. Awesome listener. I loved the new plan we have set in motion. She is working closely with my other specialists which Is very comforting. Downey PIH is awesome!!! You are providing me with excellent care that I desperately needed. Best GI experience I ever had!I highly recommend her. Kudos
November 04, 2021
Thank you to doctor Mallam and all the wonderful staff at PIH Hospital in Downey for their wonderful care. Thank you so much I'm very thankful for the great care I received God bless you .
November 01, 2021
Dr Mallam was so nice and cared for my health . She was patient in explaining my symtomps she's very friendly and makes you feel so welcome! I love her and thankful for her being my doctor . I Referred a friend of mine and she will make an appointment as well if I can give her 10000 stars I would .
October 12, 2021
No, because I was very satisfied with all the attention that this doctor gave me and I rate her with a 10.
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