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Phone: 800-275-6401
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Providers call:1-800-332-8901
Patients call:1-800-275-6401

This provider sees patients at the following locations:

Gastroenterology Danville
100 N Academy Ave
Danville, PA 17822

There is no publicly available rating for this care provider for one or more of the following reasons:
  1. He or she does not see patients in the outpatient clinic setting.
  2. He or she sees patients, but has not yet received the minimum number of Patient Satisfaction Reviews. To be eligible for display, we require a minimum of 30 surveys. This ensures that the rating is accurate and statistically reliable.
  3. He or she is a community provider, not a Geisinger-employed provider. Community providers tend to see patients in their own private outpatient practices, which we do not survey.

Diehl, David L., MD, FACP, FASGE
Director, Interventional Endoscopy
Clinical Professor of Medicine, Temple School of Medicine
Overall Rating:
No Rating Available.
Why Not?

Practicing Specialties:

  • Gastroenterology, Board Certified, 1989


  • U. of California - Los Angeles, School of Medicine 1983


  • Harbor - UCLA Medical Center 1984


  • Harbor - UCLA Medical Center 1987


  • U. of California - San Francisco Medical Center 1988
  • U. of California - Los Angeles Medical Center 1990

Clinical Interests:

- ERCP and diseases of biliary tract
- Pancreatic diseases
- Endoscopic ultrasound (EUS) and fine needle aspiration (FNA)
- Barrett's esophagus and endoscopic ablation including endoscopic mucosal resection (EMR) Barr-X, cryoablation
- Enteral stents
- Complex polypectomy
- Management of complex and difficult strictures

Professional Memberships:

  • American Academy of Medical Acupuncture
  • American College of Physicians
  • American Gastroenterology Association
  • American Society of Gastrointestinal Endoscopy