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
I found Dr. Parkman to be an excellent listener and history taker. I felt confident that he not only understood my complex history and ongoing diagnostic and treatment needs, but that he also understood and cared about what mattered to me as a patient. He treated me with the utmost kindness and respect. I understand there are very few doctors with Dr. Parkman's expertise and even fewer with his level of expertise. I'm so grateful to have been referred to Dr. Parkman.
I love Dr. Parkman. He is always very thorough, listens to my concerns and is never condescending or rude. I feel that he actually cares about my health and well being.
Really like Dr, Parkman.
Again, Parkman is the Diamond Standard all doctors should be measured against
Dr. Parkman is wonderful. He is compassionate, understanding, and kind. I would absolutely recommend him to my friends/family