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
Really like Dr. Parkman. Recommend him to many people. He listens and responds.
I would recommend anyone to go to the gastroenterology staff Doctor Parkman [...] and the entire nursing staff, they were all professional, courteous and great bedside manner
He knows his work and was very concerned
Doctor was amazingly patient and thorough.
Dr. Parkman is very knowledgeable. He listens to your concerns and offers a voice of reason and direction