Overview
Theo Heller is a Gastroenterologist in Bethesda, Maryland. Dr. Heller is rated as a Distinguished provider by MediFind in the treatment of Hepatitis B. His top areas of expertise are Hepatitis D, Hepatitis, Portal Hypertension, Gastrectomy, and Endoscopy.
His clinical research consists of co-authoring 248 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 23 articles in the study of Hepatitis B.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- OTHER MANAGED MEDICAID
Locations
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.
Marc Ghany is a Gastroenterologist in Bethesda, Maryland. Dr. Ghany is rated as a Distinguished provider by MediFind in the treatment of Hepatitis B. His top areas of expertise are Hepatitis, Hepatitis B, Hepatitis C, and Hepatitis E.
Inova Fairfax Hospital Center For Liver Diseases
Zobair Younossi is a Gastroenterologist in Falls Church, Virginia. Dr. Younossi is rated as an Elite provider by MediFind in the treatment of Hepatitis B. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Hepatitis C, Nonalcoholic Steatohepatitis (NASH), Liver Transplant, and Heart Transplant. Dr. Younossi is currently accepting new patients.
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
Natarajan Ravendhran is a hepatologist specializing in the diagnosis, treatment and management of liver diseases. He received his medical degree from Stanley Medical College, University of Madras in India, completed his residency in internal medicine at what is now Ascension Saint Agnes Hospital in Maryland and a residency in surgery at Railway Hospital in Madras, India. Dr. Ravendhran performed fellowship training in hepatology under the mentorship of Eugene and Leon Schiff at the University of Miami. Additionally, he received fellowship training in gastroenterology and liver disease at the University of Missouri. Dr. Ravendhran received a master’s degree in business administration in medical services management from The Johns Hopkins University. He is a fellow of the American Association for the Study of Liver Diseases and the American Gastroenterological Association, and is a member of the European Association for the Study of the Liver. Dr. Ravendhran is interested in exploring cholestatic disorders. He has participated in many clinical trials that focus on hepatitis B and C, in addition to metabolic dysfunction-associated steatotic liver disease trials. He enjoys teaching, rounding with fellows and seeing patients, and his motto is “Patients come first!”. Dr. Ravendhran is rated as a Distinguished provider by MediFind in the treatment of Hepatitis B. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Hepatitis, Visceromegaly, Enlarged Liver, and Endoscopy.
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
- Elite
- HepatitisDr. Heller isElite. Learn about Hepatitis.
- Hepatitis DDr. Heller isElite. Learn about Hepatitis D.
- Portal HypertensionDr. Heller isElite. Learn about Portal Hypertension.
- Distinguished
- CirrhosisDr. Heller isDistinguished. Learn about Cirrhosis.
- Congenital Hepatic FibrosisDr. Heller isDistinguished. Learn about Congenital Hepatic Fibrosis.
- Hepatitis BDr. Heller isDistinguished. Learn about Hepatitis B.
- Hepatitis CDr. Heller isDistinguished. Learn about Hepatitis C.
- Advanced
- AnemiaDr. Heller isAdvanced. Learn about Anemia.
- CholestasisDr. Heller isAdvanced. Learn about Cholestasis.
- EndoscopyDr. Heller isAdvanced. Learn about Endoscopy.
- Enlarged LiverDr. Heller isAdvanced. Learn about Enlarged Liver.
- GastrectomyDr. Heller isAdvanced. Learn about Gastrectomy.
- Non-Alcoholic Fatty Liver DiseaseDr. Heller isAdvanced. Learn about Non-Alcoholic Fatty Liver Disease.
- Experienced
- Angiosarcoma of the LiverDr. Heller isExperienced. Learn about Angiosarcoma of the Liver.
- Autoimmune HepatitisDr. Heller isExperienced. Learn about Autoimmune Hepatitis.
- Bile Duct CystsDr. Heller isExperienced. Learn about Bile Duct Cysts.
- Bile Duct ObstructionDr. Heller isExperienced. Learn about Bile Duct Obstruction.
- Budd-Chiari SyndromeDr. Heller isExperienced. Learn about Budd-Chiari Syndrome.
- Caroli DiseaseDr. Heller isExperienced. Learn about Caroli Disease.

