John O'Brien Clarke, MD

John O'Brien Clarke, MD

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
75 Patient Ratings
19 Patient Comments

Digestive Health Center at Blake Wilbur Building

Esophagus Center

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)

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4.9

Friendliness

4.8

Explanations

4.8

Listens

4.8

Includes you in decisions

4.8

Clear Communication

4.8

Confidence in your doctor

4.8

Recommended to others

4.6

Wait times

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.

View All 19 Patient Comments »
4.8 out of 5
75 Patient Ratings
19 Patient Comments

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.