Clinical Interests
- Motility disorders of the esophagus, stomach, small intestine and colon
- Achalasia
- GERD
- Gastroparesis
- Dyspepsia
- Chronic constipation
- Fecal incontinence
Research Interests
- Evaluation and treatment of GI motility disorders including gastroparesis, GERD, constipation
- Development of noninvasive tests to measure gastric emptying and gastric accommodation after ingestion of a solid meal.
- New pharmaceutical treatments for gastroparesis and functional dyspepsia
- Use of impedance during esophageal manometry and esophageal pH monitoring to assess transit and reflux
Education
- MD, Case Western Reserve University, Cleveland, OH
Training
- Fellowship (Gastroenterology Research), Mayo Clinic Medical School, Rochester, MN
- Fellowship, Gastroenterology, Hospital of the University of Pennsylvania, Philadelphia, PA
- Residency, Internal Medicine, Johns Hopkins Hospital, Baltimore, MD
Board Certifications
- American Board of Internal Medicine - Internal Medicine
- American Board of Internal Medicine - Gastroenterology
Memberships
- American Gastroenterological Association
- American Neurogastroenterology and Motility Society
- American College of Gastroenterology
- American Society for Gastrointestinal Endoscopy
Awards and Honors
- Top Doctors, Gastroenterology, Philadelphia magazine, 2015-2016, 2018-2025
- Department of Medicine Research Award
- Best Doctors in America®, Gastroenterology, 2015-2016, 2017-2018, 2019-2020
Treatment Philosophy
My approach to patient care includes obtaining a careful patient history of the symptoms, obtaining carefully selected tests to evaluate the patient's symptoms, reviewing the results of the tests with the patient and deciding on the appropriate treatment for the symptoms and disorder together.
Patient Comments
The. Parkman is so wonderful. He is friendly, is interested and discusses any questions, takes initiative to explain and review not just treatment but how you are doing. I appreciate his honesty, calming nature, patience and expertise.
Well, I like Dr. Parkman very much and would recommend him [...]
He is so good that you can't give him any more patients. But. He is amazing thorough concern compassionate. And very very well educated liked and trusted
Dr Parkman is an excellent physician and is very caring and understanding. He always has a clear plan for treatment.
Dr. Parkman is dedicated to finding the best treatment for his patients. He is thorough and takes his time to listen and explain.