John Lah - PIH Health - Whittier, CA

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John J. Lah

John J. Lah, MD

4.7 / 5 (based on 242 Reviews) View 75 Comments

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12291 Washington Blvd #201
Whittier, California 90606
  • Main: 562.698.0306
  • Fax: 562.789.5458

Hospital/Group Affiliation

PIH Health Physicians

PIH Health Hospital - Whittier





  • Gastroenterology


  • English



University of California Medical Center (Irvine)


University of California Medical Center (Irvine)


New York Medical College - Valhalla


Gastroenterology (Sub-Spec Cert)

Internal Medicine (General Cert)


Patient Reviews

November 14, 2018
Dr. Could be nicer
November 14, 2018
I was pleased with how I was treated, and grateful for their courtesy.
November 13, 2018
I have a (what I suppose) great doctor. Wish I could get to know him sometime.....
November 13, 2018
I felt very well taken care of. The office was a meat locker!!
November 12, 2018
very professional
November 07, 2018
Attentive & informative caring
November 07, 2018
I know he's busy but it took 2 months to get an appointment I think that's too long. I didn't like meeting with his assistant
November 05, 2018
Amazing professional staff at a state of the art surgery units. Impressive well trained staff each with remarkable specialized skills.
October 30, 2018
Great office staff, assistants, nurses and doctor. Had a very good experience. Thank you PIH!
October 29, 2018
October 19, 2018
Not sure if Dr. John Lah is a general practitioner but I'm going to find out because I found him to be very patient and attentive to my concerns and now a days a doctor rushed you out the door as to see many more patients but I got the sense that Dr. Lah had a genuine concern and made sure I understood before he went any further. I highly recommend
October 19, 2018
I recommend him to my family and friends
October 17, 2018
Dr Lah is absolutely the best! He listens and respects all of your concerns. He will take as much time as needed to make sure you understand everything. He genuinely cares. I really can't say enough about Dr Lah!
October 12, 2018
Dr. Lah was very personal and easy to speak with. His staff was professional and courteous.
October 08, 2018
Very nice and courteous staff. Very helpful and listened to all my concerns.
October 05, 2018
Dr. Lah is very knowledable, he took his time to explain everything and he has a very good approach. He listened to me and asked me if I had any questions more than once. I felt very comfortable with Dr. Lah.
October 05, 2018
October 04, 2018
I already shared them:Quicker appointment Have specialists call me to set up ultra sound
October 04, 2018
Dr. Lah was aware of my medical history and worked with me to move forward with testing. Appreciated his attention to my particular situation.
September 28, 2018
Great office visit, professional in every aspect, very personable and knowledgable. I recently had an appointment with a different G.I. doctor from a different office, the differences where as night and day. Don't hesitate to make an appointment with this office.
September 25, 2018
Very good.
September 25, 2018
Great patience care, the process & procedure went extremely well. Everyone from the reception, nurses, Dr Lah were friendly, professional, caring, and informative.
September 24, 2018
I feel confident that Dr. Lah and his GI team will find the problem with my husband's stomach and the mass that is there.
September 18, 2018
All was very good
September 12, 2018
Great office staff. Professional,patient and understanding doctor.
September 10, 2018
Very nice doctor and staff
September 10, 2018
Everyone was welcoming and friendly.
September 07, 2018
Nothing further. Thank you!
August 27, 2018
A amazing hospital from the gentleman checking you in to the nurses,to the guy wheeling you out on the wheel chair very friendly.
August 21, 2018
He was extremely knowledeable amazing understanding and thorough!
August 20, 2018
August 16, 2018
Easy pre-check in and friendly helpful staff.
August 16, 2018
Go to see this doctor.
August 09, 2018
Great doctor!
August 07, 2018
He is a great Dr.
August 01, 2018
It took me 5 weeks to see the doctor after I made an appointment
July 31, 2018
First time visiting very satisfied will recommend to my friends. The doctor has a fantastic bedside manner.
July 27, 2018
A caring doctor with good insights.
July 20, 2018
I am very comfortable with Dr. Lah. He is very knowledgeable about my rare autoimmune condition and his easy manner sets one at ease. A very good listener!
July 18, 2018
The visit was very efficient and comfortable. Dr Lah listened to all my concerns
July 17, 2018
The procedure wasn't all that bad and I'm hopefully good for another 10 years.
July 16, 2018
Get another provider if at all possible.
July 16, 2018
I highly recommend Dr Lah and the PIH GI Center.
July 03, 2018
They are the best...I never have any fear when I've needed a procedure done and the staff have all been wonderful.
June 29, 2018
Nice,friendly,and explained with detail.
June 29, 2018
Hang in there with me.
June 29, 2018
Dr. Lah has been my husband's Dr. for a few years and now I visited him as the patient. He is always thoughtful and takes time to explain any concerns and answer all questons. One of the best of the best.
June 29, 2018
very nice
June 27, 2018
June 25, 2018
I would to see more flexibility in the appointment area like weekends.
June 22, 2018
Dr Lah is a fantastic doctor.
June 19, 2018
I like going to PIH and Dr Lah. He and his staff in the procedure room were quite knowledgable and good communicators. I have no hesitation in recommending this team or PIH in general based on my overall experiences.
June 18, 2018
Dr. Lah is very attentive. He had already studied my case before the procedure even began and explained exactly what he would be looking for and the expected results. He is also a very kind man which makes a big difference in a stressful situation.
June 18, 2018
Have this done ASAP, don’t hesitate. They made me feel at ease.
June 18, 2018
Services were and are the best I have ever had
June 13, 2018
Dr. Lah is friendly, listens and answers questions without making you feel rushed. Very knowledgeable in his field. I feel very confident that I am getting the best care from this doctor and am extremely satisfied.
June 05, 2018
No discomfort
June 04, 2018
Dr. Lah and staff we very helpful with providing procedures taken and with information provided before and after.
June 04, 2018
The care I received was excellent. All of the nurses were wonderful and caring. They all did such a great job! Thank you!
June 01, 2018
This is an encouraging and very supportive doctor.
May 25, 2018
From the time I walked in to the office to the time I left everyone was very kind, pleasant & attentive! My Dr. was very informative, respectful and definitely made me feel cared for by himself & his staff!
May 23, 2018
He is trying to find the best solution for my problem
May 22, 2018
I would recommend them as a health care provider.
April 17, 2018
For a rather unpleasant necessity, this provider made the experience bearable. Thank you!
April 16, 2018
Nurses and Medical staff were great too.
April 16, 2018
All was good!
April 13, 2018
Dr Lah was very knowledgeable and respectful. He explained in detail the digestive track and it was nice to know he confirmed my belief on the connection between brain and gut health. He was quick to put me on pills to neutralize my acidity, which I am struggling to do since I don't like taking medication and rather try other alternatives before turning to pills, but I am following dr's orders. Also, he never told me what my diagnosis was except for that I was too acidic and that is what was causing my bloat, gas pain, and discomfort. I had read other comments that he didn't really take time to listen to what the patient had to say, I didn't feel that way, however he did talk about 90% of the time and would ask if I had questions after explaining something. I did get caught up in what he was explaining, that I forgot to mention the rest of the symptoms I was experiencing, and to ask him several important questions I had.
April 10, 2018
That the staff, made me feel very comfortable.
April 10, 2018
I recommend him because he listens well and explains things well
April 06, 2018
I would recommend him.
April 04, 2018
Dr. Lah has been the only MD that has sat down and spent time to get my full symptom history, explain a plan of care and is the first to take action to find the cause. Thank you Dr. Lah!!
April 02, 2018
Professional and courteous doctor.
March 30, 2018
I feel safe with what Dr Lah explained to me on what he was going to do. Dr.Lah also explain why I should have other test done and I told my sister's about it.
March 28, 2018
very nice and easy to speak to about health problems.answers to the point and informative.
March 26, 2018
Great Service was provided!!