Overview
Dr. Collier is graduate from Georgetown University Medical School, Washington D.C. and he has been in practice since 2000 in Rockville, MD. Dr. Collier received advanced training in Gastroenterology and Endoscopic Ultrasound from prestigious organizations such as Georgetown University Hospital, Washington Veteran's Hospital and the National Institutes of Health. Dr. Collier's top priority is to advance the delivery of care for patients suffering from digestive health conditions. His goal is to provide high quality patient care, medical diagnosis and the most effective treatment. He is married with three children. For more information on Dr. Collier, visit CapitalDigestiveCare.com.
Dr. Collier is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Irritable Bowel Syndrome (IBS), Indigestion, Gastroesophageal Reflux Disease (GERD), Portal Hypertension, and Gastrectomy.
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
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE-MEDICAID PLAN
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- OTHER MANAGED MEDICAID
- EPO
- HMO
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- HMO
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
6100 Executive Boulevard, Suite 301, Suite 301, North Bethesda, MD 20852
Mark Donowitz is a Gastroenterologist in Baltimore, Maryland. Dr. Donowitz is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Crohn's Disease, Short Bowel Syndrome, and Small Bowel Bacterial Overgrowth. Dr. Donowitz is currently accepting new patients.
Chesapeake Digestive Associates, PC
Aminur Khan is a Gastroenterologist in Annapolis, Maryland. Dr. Khan is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Familial Adenomatous Polyposis, Gastrectomy, and Endoscopy.
Anne Arundel Gastroenterology Associates, P.A.
Thomas Simcox is a Gastroenterologist in Bowie, Maryland. Dr. Simcox is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Gastrectomy.
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
- Gastroesophageal Reflux Disease (GERD)Dr. Collier isDistinguished. Learn about Gastroesophageal Reflux Disease (GERD).
- IndigestionDr. Collier isDistinguished. Learn about Indigestion.
- Irritable Bowel Syndrome (IBS)Dr. Collier isDistinguished. Learn about Irritable Bowel Syndrome (IBS).
- Advanced
- Anal FissureDr. Collier isAdvanced. Learn about Anal Fissure.
- Barrett EsophagusDr. Collier isAdvanced. Learn about Barrett Esophagus.
- Celiac DiseaseDr. Collier isAdvanced. Learn about Celiac Disease.
- Childhood VolvulusDr. Collier isAdvanced. Learn about Childhood Volvulus.
- Chronic Erosive GastritisDr. Collier isAdvanced. Learn about Chronic Erosive Gastritis.
- ColitisDr. Collier isAdvanced. Learn about Colitis.
- Experienced
- AchalasiaDr. Collier isExperienced. Learn about Achalasia.
- Acute PancreatitisDr. Collier isExperienced. Learn about Acute Pancreatitis.
- Alcoholic CirrhosisDr. Collier isExperienced. Learn about Alcoholic Cirrhosis.
- AnemiaDr. Collier isExperienced. Learn about Anemia.
- Angiodysplasia of the ColonDr. Collier isExperienced. Learn about Angiodysplasia of the Colon.
- Arteriovenous MalformationDr. Collier isExperienced. Learn about Arteriovenous Malformation.