John Lah MD - PIH Health - Whittier, CA

Skip to Content

John J. Lah

John J. Lah, MD

4.7 / 5 (based on 148 Reviews) View 52 Comments

Make an Appointment

Online scheduling is available - Sign up now


  • Group
View my video


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

June 07, 2019
Great Doctors at PIH! Extremely satisfied!
June 07, 2019
Dr. Lah explained everything simply and in great detail.
June 05, 2019
Provide practical methods of prevention.
June 04, 2019
Don't get sick but if you do defitnely go to PHI
June 03, 2019
Everybody there were professional and nice. The rooms were clean and well maintained. Waiting time was a bit long but I would rather give them reasonable time to prepare than rushing in treatment.
May 29, 2019
Nice and helpful
May 29, 2019
Dr. Lah is very thorough and knowledgeable in his area of medical practice. He explains the issues in a way that is easy to understand.
May 29, 2019
Dr Lah explained in detail the results of my teest. Spent a good amount of time with me and made me feel very comfortable and not rushed at all.
May 28, 2019
May 23, 2019
As a patient we are own advocate and despite physicians following EBP sometimes they need to make exceptions when the patient requests them. Dr. Lah is steadfast in his plan of care and does not make exceptions only recommendations based on experiences and how he treats other patients with the same illness. Even if multiple patients have the same illness they each have different symptoms including levels of severity and should be treated according to those symptoms.
May 22, 2019
Dr. Lah is personable, knowledgeable, and realistic...qualities I look for in a care provider!!!
May 21, 2019
This is an outstanding facility and staff are knowledgeable, caring and skilled.
May 21, 2019
Great service and the environment is healthy.
May 21, 2019
I always recommend PIH as being the best in the vicinity. Since I've been with my staff of doctors since 1967, they have the best record with diagnostics for my family, they've never failed with monitoring my family's health, why go anywhere else. YES SHARE.
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.