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 Colonoscopy. 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. In particular, he has co-authored 1 article in the study of Colonoscopy.
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.
Wellspan Medical Group
Gerald Bertiger is a Gastroenterologist in Ephrata, Pennsylvania. Dr. Bertiger is rated as an Advanced provider by MediFind in Colonoscopy. His top areas of expertise are Gastrointestinal Bleeding, Diarrhea, Trichohepatoenteric Syndrome, Colonoscopy, and Endoscopy. Dr. Bertiger is currently accepting new patients.
Geisinger Scranton - Gastroenterology
Dr. Manocha specializes in internal medicine. He provides care for digestive disorders of the esophagus, stomach, small intestine and colon.|He also treats disorders including gastroesophageal reflux disease, achalasia, non-cardiac chest pain, gastroparesis, functional dyspepsia, irritable bowel syndrome, constipation, diarrhea and fecal incontinence.|Dr. Manocha received his medical degree from Maulana Azad Medical College in India. He completed his internal medicine residency and gastroenterology fellowship training at Upstate Medical University in Syracuse, N.Y.|Dr. Manocha is certified in internal medicine and gastroenterology by the American Board of Internal Medicine and Medical Specialties. He speaks English, Hindi and Punjabi. Dr. Manocha is rated as an Advanced provider by MediFind in Colonoscopy. His top areas of expertise are Pyogenic Liver Abscess, Jaundice, Enlarged Liver, Colonoscopy, and Endoscopy.
The Milton S Hershey Medical Center Physicians Group
John Levenick is a Gastroenterologist in Hershey, Pennsylvania. Dr. Levenick is rated as a Distinguished provider by MediFind in Colonoscopy. His top areas of expertise are Colorectal Polyps, Acute Pancreatitis, Hereditary Pancreatitis, Endoscopy, and Colonoscopy.
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.