Advanced Gastroenterology & Liver Institute

Gastroenterology Practice located in Santa Ana, Anaheim, Fullerton and Huntington Beach, CA

Advanced Gastroenterology & Liver Institute

Gastroenterology Practice located in Santa Ana, Anaheim, Fullerton and Huntington Beach, CA

Advanced Gastroenterology & Liver Institute

Gastroenterology Practice located in Santa Ana, Anaheim, Fullerton and Huntington Beach, CA

Book online

our services

testimonials

About
Advanced Gastroenterology & Liver Institute

Advanced Gastroenterology & Liver Institute in Anaheim, Santa Ana, Fullerton, and Huntington Beach, California, provides comprehensive gastroenterology care. People travel from all over to consult with Tahmina Haq, MD, who is well-known for her compassionate care and clinical expertise.

At Advanced Gastroenterology & Liver Institute, Dr. Haq specializes in diagnosing and treating digestive disorders like Crohn’s disease, ulcerative colitis, and hepatitis. She also performs a number of diagnostic procedures, including upper endoscopy, endoscopic ultrasound, and endoscopic retrograde cholangiopancreatography (ERCP).

In addition, people come to Advanced Gastroenterology & Liver Institute for colon cancer screenings and treatment of colon polyps. Dr. Haq has a high adenoma detection rate of 65%, increasing her patients’ protection against colon cancer.

After earning her Doctor of Medicine at Shifa College of Medicine in Rawalpindi, Islamabad, Pakistan, Dr. Haq completed her internal medicine residency at Loma Linda University Medical Center in Loma Linda, California.

She then completed her gastroenterology fellowship at the University of California, San Francisco (UCSF) and her advanced endoscopy fellowship at Harbor-UCLA Medical Center in West Carson, California.

Dr. Haq takes the time to get to know her patients, building trust and long-lasting relationships. When not taking care of her patients, Dr. Haq enjoys traveling and spending time with her family.

Call Advanced Gastroenterology & Liver Institute or use the online booking button to schedule an appointment today.

Learn more

Affiliations

We offer TIF Procedure!

No incisions necessary.

Designed to reposition and reconstruct a durable anti-reflux valve while also tightening the Lower Esophageal Sphincter (LES) to restore the body’s natural protection against reflux.

“Dr. Haq is truly the best physician I’ve ever had. Not only will she listen to me and my symptoms with an open mind, but she is determined to go the whole distance and get me to remission. I recommend her to everyone I know in need of a GI. I could write a whole essay about how grateful I am to her and have love having you as her doctor!”

Patient HS

"Working with Dr Haq these past few years has been wonderful. She is a very dedicated doctor and her skills are great. She has helped so many patients with care and procedures. She is a great surgeon that is dedicated to achieving the best outcome for each patient and does a thorough examination and performance of the procedure itself taking her time, not to rush and being very thorough in every part of the surgery from ERCP’s colonoscopy’s also, EGDs also, peg placement and stent placement in the bile duct, and also in the esophagus. I had a pleasure working with her and looking to work with her in the future. I have been a Gastro intestinal technician over 20 years and she is one of the finest doctors I have had the pleasure of working with."

Tommy Johnson, Gastrointestinal technician.

"Dr. Haq is a hardworking individual who has her focus on the wellness of her patients. She spends time to talk to pt and their families about plans regarding pts health and one of the best GI physicians."

Precious del castillo RN BSN

Dr. Haq is intelligent, compassionate, and thorough. She uses cutting edge technology to provide the best treatments for her patients and I always enjoy working with her.

Amna RN

“Dr. Tahmina Haq it’s one of the best doctors I’ve ever had the privilege to work with. She is compassionate, gentle and patient. I feel so strongly about the care she provides that I referred my own daughter to her. As a practitioner she is extremely knowledgeable, and as a person, she is always willing to share that knowledge with the team she works with. If you’re looking for a highly skilled Endoscopist, or just a doctor, that will always listen and be there for you Dr. Tahmina Haq is the one you’re looking for”.

Jennifer Taylor, RN, BSN, CGRN

GI Lab Manager

“When I first came Dr Haq I was at my wits end in endless pain and had already gone through 3 other doctors. Dr Haq was the only one who took me seriously enough to find my stage 3 colon cancer. To say you will be in great hands would be an understatement ”

Amanda Lee

“ If you are looking for a doctor you can trust with your life than look no further. Dr Haq will be my only GI going forward and I know, as a cancer survivor, that I’m in great hands”

Amanda Lee

“ Unlike other doctors, Dr. Haq takes her time to listen to all of your needs. There has never been a time where I didn’t feel heard and taken cared for. As a cancer survivor, I know her team will always give me the best treatment.”

Amanda Lee

“ When dozens of other doctors sent me home in pain for years, Dr Haq was the only doctor to find my stage 3 cancer, so it’s very simple to say I will be staying with her and her amazing care team.”

Amanda Lee

"Dr. Haq is the most attentive doctor I have met. She is very charismatic and takes the time to make sure I am comfortable and knowledgeable about what she will be doing to help me."

Self Verified Patient

DR. HAQ

has an ADR - adenoma detection rate of 65%.

Don’t suffer from painful heartburn, reflux, regurgitation, digestive-related shortness of breath or chest pain any longer. Help is here today!

what our patients have to say

"What I really appreciate about Dr. Haq is that she works to fully appraise your health symptoms, the risks, the benefits, and then makes her recommendations."

Michelle

"Dr. Haq is is very friendly and makes you feel very comfortable and at ease. She is very knowledgeable and patient. She answered all my questions in a timely manner."

Mayra

"Very nice doctor, my colonoscopy was very professionally and successfully with no problem whatsoever."

Self Verified Patient

"She makes you feel so comfortable before going in for a procedure like colonoscopy, endoscopy that you have no fear what so ever. I was completely satisfied."

Self Verified Patient

"This Amazing Doctor Saved my daughter Amanda Lee‘s life by finding the stage 3 colon cancer many Doctors missed . We Thank her for her Kindness and Compassion , and for her relentless loyalty to her Patients."

Gaylene L.

"Dr Thanin Haq is one of the best GI doctor I’ve ever had. She’s understanding and did an amazing job at helping my stomach get better (:"

Ulises O.

Very compassionate and knowledgeable! She always stays up to date in her field and loves her patients! I did not feel rushed and the whole process from check in to when I left went very smoothly! She is very attentive and treats her patients like family. Thank you for the amazing, top quality patient care!!!

Asna K

"Dr. Tahmina haq is a great doctor and makes you feel very comfortable the whole time. Highly recommend for anyone to visit her for concerns regarding GI."

Yvette C.

"Love her! Well worth the hour drive, first doctor to take me seriously in years and didnt shy away from tests. Will definitely being returning!"

Yevgeny A.

"THIS DOCTOR SAVED MY LIFE. I came to her after going to another GI who ran no tests on me and when I told him I couldn't eat and was in pain he said maybe that's not such a bad thing". Being plus sized I was shocked and searched for a female doctor. She ran all the tests and they found a large tumor in my colon. I was admitted and she came to explain everything to me while I was in the hospital. Today I am leaving her office thanking god put this angel in my path because I have colon cancer. She did more then her job. She treated me as if I was family. I'm so so very grateful for her."

Amanda L.

"Great compassionate Gastroenterologist, Who is very skilled, well read, and listens. Highly recommended!!"

Jeffrey G.

"Dr. Haq was amazing! Very kind and professional from start to finish. I really appreciated the patience answering all my questions. We need more MDs like Dr. Haq! I always recommend Dr. Haq to my family and friends."

Steven L.

"Dr. Haq is an extremely compassionate and attentive doctor. She listened to all my concerns and did not make me feel rushed. She is very knowledgeable and able to communicate well. I was very worried going in, but she helped soothe my fears and was very professional in her treatment and diagnosis. The whole process went very smoothly and I could immediately tell how much she loves her field and her patients! I will always go to her. Thank you!"

Asna K.

"Dr Haq and the entire staff at the Anaheim office were amazing. A Colonoscopy can be a little frightening (especially your 1st)! Dr. Haq & her entire Anaheim staff answered all my questions, kindly, was very informative and put my mind at ease. When my appt. came, everyone was wonderful and professional. Through the entire procedure, from 1st appointment to finish they had a way of making you feel you were their only patient! I I wish all doctor's and staff were like this! I would recommend Dr. Haq and her entire staff to everyone!"

Charlie R.

"My name is Amy S. It is with deepest gratitude that I write this review. I have been a patient of Dr. Haq's for several years. If you need an excellent GI Doc in the Anaheim/Garden Grove area, I would highly recommend her. Not only is she highly intelligent in her field of medicine, but also one of the most compassionate, kind and caring Doctors I have ever seen. She is beautiful outside but, more importantly, on the inside. She truly cares about her patients. Her staff is very accommodating as well. Please go to her if you're ever in need of a GI Doctor. Thank you. Dr. Haq!"

Amy S.