Overview
Dr. Shellenberger is a board-certified and fellowship-trained gastroenterologist. His clinical interests include postgraduate medical education, esophageal motility and other GI laboratory procedures. Dr. Shellenberger earned his medical degree from the Philadelphia College of Osteopathic Medicine. He completed his residency and his fellowship in gastroenterology at Geisinger Medical Center. Dr. Shellenberger is certified by the American Board of Internal Medicine in internal medicine and gastroenterology.
Dr. Shellenberger is rated as an Experienced provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Crohn's Disease, Angiodysplasia of the Colon, Swallowing Difficulty, Endoscopy, and Colonoscopy.
His clinical research consists of co-authoring 11 peer reviewed articles. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- PPO
- HMO
- MANAGED MEDICAID PLAN
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
100 North Academy Avenue, Danville, PA 17822
10 Choate Circle, Montoursville, PA 17754
1201 Oak Street, Pittston, PA 18640
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Geisinger Medical Center - GI Nutrition
Dr. Still is a board-certified and fellowship-trained specialist in nutrition and weight management. His clinical and research interests include malnutrition and comprehensive weight management. Dr. Still obtained his medical degree from the Philadelphia College of Osteopathic Medicine. He completed his residency and a fellowship in clinical nutrition at Geisinger Medical Center. Dr. Still is certified by the American Board of Internal Medicine.|Are weight loss medications right for you? Learn more from Dr. Still. Dr. Still is rated as a Distinguished provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Obesity, Malnutrition, Small Bowel Bacterial Overgrowth, Gastric Bypass, and Vagotomy.
Geisinger Montoursville - Endoscopy
Darshan Suthar is an Internal Medicine specialist and a Gastroenterologist in Montoursville, Pennsylvania. Dr. Suthar is rated as an Advanced provider by MediFind in the treatment of Malnutrition. His top areas of expertise are Malnutrition, Small Bowel Bacterial Overgrowth, Short Bowel Syndrome, Hemorrhoidectomy, and Endoscopy.
Geisinger Medical Center - GI Nutrition
Susan Rasul is a primary care provider, practicing in Gastroenterologist in Danville, Pennsylvania. Dr. Rasul is rated as an Experienced provider by MediFind in the treatment of Malnutrition. Her top areas of expertise are Malnutrition, Small Bowel Bacterial Overgrowth, Short Bowel Syndrome, and Obesity.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- Crohn's DiseaseDr. Shellenberger isDistinguished. Learn about Crohn's Disease.
- Advanced
- Angiodysplasia of the ColonDr. Shellenberger isAdvanced. Learn about Angiodysplasia of the Colon.
- ColitisDr. Shellenberger isAdvanced. Learn about Colitis.
- EndoscopyDr. Shellenberger isAdvanced. Learn about Endoscopy.
- EsophagitisDr. Shellenberger isAdvanced. Learn about Esophagitis.
- Familial Adenomatous PolyposisDr. Shellenberger isAdvanced. Learn about Familial Adenomatous Polyposis.
- Gas Bloat SyndromeDr. Shellenberger isAdvanced. Learn about Gas Bloat Syndrome.
- Experienced
- AchalasiaDr. Shellenberger isExperienced. Learn about Achalasia.
- Alcoholic CirrhosisDr. Shellenberger isExperienced. Learn about Alcoholic Cirrhosis.
- Anal FissureDr. Shellenberger isExperienced. Learn about Anal Fissure.
- Bacterial GastroenteritisDr. Shellenberger isExperienced. Learn about Bacterial Gastroenteritis.
- Banti's SyndromeDr. Shellenberger isExperienced. Learn about Banti's Syndrome.
- Barrett EsophagusDr. Shellenberger isExperienced. Learn about Barrett Esophagus.