John Clarke

John Clarke

Gastroenterologist, Motility specialist

Bio:   Dr. John Clarke recently joined the Gastroenterology & Hepatology Division at Stanford University as Director of the Esophageal Program. He previously spent 17 years in Baltimore, including 9 years on the faculty at Johns Hopkins University where he was an Associate Professor and at various times Director of Esophageal Motility, Director of Gastrointestinal Motility, Clinical Director of the Johns Hopkins Center for Neurogastroenterology, and Clinical Director of the Gastroenterology & Hepatology Division at Johns Hopkins Bayview Medical Center.

His career has combined research, education and clinical care. His clinical areas of expertise include achalasia, dysphagia, eosinophilic esophagitis, esophageal dysmotility, gastroesophageal reflux disease, gastroparesis, GI-manifestations of scleroderma and GI dysmotility. While at Johns Hopkins University, he was inducted into The Miller-Coulson Academy for Clinical Excellence, an institutional honor society for master clinicians at the time limited to 50 members across the entire university.

From an education standpoint, he has lectured in over a dozen countries, authored over 25 textbook chapters and serves on the educational affairs committee of the American College of Gastroenterology. He has also won several major teaching awards, including The Johns Hopkins University Alumni Association Award for Excellence in Teaching, given to one faculty member per year in the entire School of Medicine.

His research has focused on optimization and characterization of diagnostic studies to evaluate motility disorders, as well the relationship between therapeutic endoscopic techniques and treatment of motility disorders. He was an investigator on the NIH Gastroparesis Consortium and is also a former recipient of the AGA Don Castell Award.
4.8 out of 5
190 Patient Ratings
62 Patient Comments

Digestive Health Center in Redwood City

  • 420 Broadway Street, Pavilion D, 2nd Floor
  • Redwood City , CA 94063
  • Phone: 650-736-5555
More Clinic Information » Getting Here » Make An Appointment

Esophagus Center

  • 420 Broadway Street, Pavilion D, 2nd Floor
  • Redwood City , CA 94063
  • Phone: 650-736-5555
More Clinic Information » Getting Here » Make An Appointment

Amyloid Center

  • 300 Pasteur Drive
  • 2nd Floor, Room A260
  • Stanford , CA 94305
  • Phone: 650-725-6186
More Clinic Information » Getting Here » Make An Appointment

Professional Education

  • Board Certification: Gastroenterology, American Board of Internal Medicine (2007)
  • Fellowship: Johns Hopkins University Dept of Gastroenterology (2007) MD
  • Board Certification: Internal Medicine, American Board of Internal Medicine (2002)
  • Residency: Johns Hopkins Hospital Internal Medicine Residency (2002) MD
  • Medical Education: Columbia University College of Physicians and Surgeons (1999) NY

Honors & Awards

  • Award for Excellence in Teaching, John Hopkins University Alumni Association (2015)

Administrative Appointments

  • Director, Esophageal Program, Stanford Medicine (2016 - Present)

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

4.8

Friendliness

4.8

Explanations

4.8

Listens

4.8

Includes you in decisions

4.9

Clear Communication

4.8

Confidence in your doctor

4.7

Recommended to others

4.3

Wait times

SHC Patient, May 2019

Dr. Clarke is an excellent physician.

SHC Patient, May 2019

MD and resident & intern were great. Stanford itself, though, always leaves much to be desired where support staff and such are concerned.

SHC Patient, Apr 2019

Dr. Clarke is wonderful. Kind and considerate of my issues and general health! He is reassuring and gives me hope.

SHC Patient, Apr 2019

As much as the dr. as his personnel are very nice and humanitarian.

SHC Patient, Mar 2019

I was pleased with the care I received. The doctor answered all questions and addressed my concerns. He was patient and did not make me feel rushed. I appreciated the amount of time he dedicated to my appointment.

SHC Patient, Mar 2019

Even as we were late he spent time with us as needed.

SHC Patient, Mar 2019

Clarke and his PAs have been great. We are working through a plan and he's been supportive of my desire and needs. I've already recommended him to others.

SHC Patient, Mar 2019

Good.

SHC Patient, Mar 2019

Dr. Clarke was very professional & informative.

SHC Patient, Mar 2019

Dr. Clarke is a very patient doctor.

SHC Patient, Jan 2019

I know that my mother is in very good hands with Dr. Clarke. He takes the time to listen to her. He asks for her opinion about other care options and is very empathetic and concerned for her health. Her health is what it is but is really helps her to deal with her issues knowing that Dr. Clarke continues to try and provide relief. He also advises of new and upcoming medications that may assist her. We are very grateful to Dr. Clarke for his care of my mother.

SHC Patient, Jan 2019

Best GI doc I've seen.

View All 62 Patient Comments »
4.8 out of 5
190 Patient Ratings
62 Patient Comments

SHC Patient, May 2019

Dr. Clarke is an excellent physician.

SHC Patient, May 2019

MD and resident & intern were great. Stanford itself, though, always leaves much to be desired where support staff and such are concerned.

SHC Patient, Apr 2019

Dr. Clarke is wonderful. Kind and considerate of my issues and general health! He is reassuring and gives me hope.

SHC Patient, Apr 2019

As much as the dr. as his personnel are very nice and humanitarian.

SHC Patient, Mar 2019

I was pleased with the care I received. The doctor answered all questions and addressed my concerns. He was patient and did not make me feel rushed. I appreciated the amount of time he dedicated to my appointment.

SHC Patient, Mar 2019

Even as we were late he spent time with us as needed.

SHC Patient, Mar 2019

Clarke and his PAs have been great. We are working through a plan and he's been supportive of my desire and needs. I've already recommended him to others.

SHC Patient, Mar 2019

Good.

SHC Patient, Mar 2019

Dr. Clarke was very professional & informative.

SHC Patient, Mar 2019

Dr. Clarke is a very patient doctor.

SHC Patient, Jan 2019

I know that my mother is in very good hands with Dr. Clarke. He takes the time to listen to her. He asks for her opinion about other care options and is very empathetic and concerned for her health. Her health is what it is but is really helps her to deal with her issues knowing that Dr. Clarke continues to try and provide relief. He also advises of new and upcoming medications that may assist her. We are very grateful to Dr. Clarke for his care of my mother.

SHC Patient, Jan 2019

Best GI doc I've seen.

SHC Patient, Dec 2018

The doctor did NOT review my history (medical records) and I had to start again - Very unproductive.

SHC Patient, Dec 2018

This is when it gets GOOD!! Dr. Clarke is amazing, kind and spends a lot of time!! Dr. Alexander Podbody is amazing. He has qualities that will make him a successful doctor!!!! Both have great "beside manner."

SHC Patient, Dec 2018

Dr.John Clarke is very personable, helpful and knowledgeable. I am getting to know him more and as of now, I feel comfortble with his approaches.

SHC Patient, Dec 2018

The problem is a plan is created and then never executed. Also there have been a few times I have messaged using the online portal and no one responds.

SHC Patient, Nov 2018

I've never spent so much time with a gastroenterologist. Dr. Clark didn't seem to be in a rush (a common experience I've had in the past), and used the information from my esophagus biopsy (done in 2017) to inform me of another illness that I didn't know I had and that was causing a lot of my symptoms. This information and his advice have already made a difference.

SHC Patient, Oct 2018

Dr Clarke has always had a listening ear and provides a great bedside manner. his knowledge is vast, but he's also willing to admit when things are difficult. he's a wonderful doctor!

SHC Patient, Oct 2018

Dr. Clarke is a excellent doctor. He is caring and helpful.

SHC Patient, Oct 2018

Excellent.

SHC Patient, Oct 2018

Dr. Brian-Clark is fantastic, one of the finest physicians I have ever dealt with. Thank you!

SHC Patient, Oct 2018

I had a wonderful experience with him. He was very friendly and understanding and accommodating to my needs.

SHC Patient, Oct 2018

Dr. Clarke is patient, friendly, knowledgable and professional. THANK YOU so much Dr. Clarke.

SHC Patient, Oct 2018

This is my first visit... overall experience with doctor was good. follow ups and scheduling is pathetic with his staff.

SHC Patient, Oct 2018

Dr. Clarke epitomizes what an outstanding GI Doctor ought to be. Please keep him happy so he'll stay put.

SHC Patient, Sep 2018

The care providers were very patient

SHC Patient, Sep 2018

Good.

SHC Patient, Aug 2018

Dr. Clarke gave me excellent care, took the time to walk me through my questions.

SHC Patient, Aug 2018

Dr. Clarke and his associate doctor really listened to all my concerns. Both doctors took their time and never rushed me. It was an extremely positive first experience.

SHC Patient, Jul 2018

excellent

SHC Patient, Jul 2018

Doctor Clarke was very kind I liked him. Most doctors I deal with are arrogant he was not.

SHC Patient, Jun 2018

Excellent provider

SHC Patient, May 2018

Based on similar Drs I have visited in the immediate area Dr Clarke is hands down the most courteous and professional Dr I have found.

SHC Patient, Apr 2018

Very good!

SHC Patient, Feb 2018

Dr. J. O. Clarke was very understanding and answered all my questions. He offered solutions that made sense and overall I felt confident that I will get better.

SHC Patient, Jan 2018

Dr. Clarke was wonderful and made me feel very comfortable.

SHC Patient, Jan 2018

These comments refer to Dr. Clarke. I was somewhat concerned that he thought my connective tissue disorder (EDS) didn't apply to internal organs, muscles and viscera--only to skin and joints. I was pleased that he took note with my concern and correction of this perception. Overall, Dr. Clarke was a very kind and knowledgable and a good listener. I wasn't expecting him to suggest P.O.E.M. and had prepped my questions for dilatation, and so afterwards, thought of questions about P.O.E.M. I should have asked...

SHC Patient, Jan 2018

Excellent service from Dr. John.

SHC Patient, Dec 2017

Both NP and doctor were very informative and helpful. Great bedside manner!

SHC Patient, Dec 2017

Dr. Clarke is a very good & caring doctor.

SHC Patient, Dec 2017

I would recommend my care provider to my family, friends or anyone that I meet.

SHC Patient, Nov 2017

Dr. Clarke is very personable responsive to my needs and issues good listener and extremely well organized with a PLAN at follow up after endo/colo.

SHC Patient, Oct 2017

Dr. Clarke is excellent. Very knowledgeable yet humble. He listens very carefully to his patients. Best GI dr. I had every have.

SHC Patient, Sep 2017

I have already recommended Dr. Clarke to others.

SHC Patient, Sep 2017

Dr. Clarke seemed to care.

SHC Patient, Aug 2017

Dr. Clarke is the best.

SHC Patient, Jul 2017

Again really liked Dr. John Clarke. He's a caring and thoughtful Doctor!

SHC Patient, Jun 2017

He communicates his expertise in a way I understand and lets me know his reasoning for his decisions.

SHC Patient, Jun 2017

Dr. Clarke is and patient. My health issues are unusual and complicated and I have really appreciated his persistence in trying to get to the bottom of the problem even though several tests have not yielded any easy answers.

SHC Patient, May 2017

O'Brien is the best GI Doc I've ever seen; and I've seen many. He's smart, keeps up on latest research, friendly, and takes the time to brainstorm options with me.

SHC Patient, May 2017

This was my first time seeing this dr. He explained things very well.

SHC Patient, Mar 2017

Has better insights than other G.I. dr.'s I have seen.

SHC Patient, Mar 2017

A most reassuring experience.

SHC Patient, Mar 2017

I find it very easy and pleasant to discuss my care with Dr. Clarke. I have great confidence in him.

SHC Patient, Mar 2017

Very caring and thoughtful.

SHC Patient, Feb 2017

Easily the best doctor I have seen. Very precise, helpful. Wish there were more such doctors. When the doctor is confident, the patient feels confident. Dr. Clarke takes the time to answer questions. I trust him.

SHC Patient, Feb 2017

So thankful to have Dr. Clarke caring for me.

SHC Patient, Feb 2017

I was very impressed that he did some research/reading about my issues prior to coming in to the room and then told me about what he had learned. Taking that extra step/time did not go unnoticed

SHC Patient, Feb 2017

Dr. Clarke is amazing! He is very thorough and open to my questions and requests. I have seen several Gastroenterologists and he has been the one to give me the most hope.

SHC Patient, Jan 2017

Dr. Clarke is awesome.

SHC Patient, Jan 2017

Dr. O'Brien reviewed my medications and determined that some were those he would prescribe, but possibly in different doses. We agreed that if my symptoms increased again, I would contact him.

SHC Patient, Jan 2017

Dr. Cooke is a caring, patient, supportive doctor.