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 Gallbladder Disease. 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
Medstar Medical Group Ii LLC
Nadim Haddad is a Gastroenterologist in Washington, Washington, D.c.. Dr. Haddad is rated as a Distinguished provider by MediFind in the treatment of Gallbladder Disease. His top areas of expertise are Gallstones, Gallbladder Disease, Bile Duct Obstruction, Gallbladder Removal, and Endoscopy. Dr. Haddad is currently accepting new patients.
The Johns Hopkins Hospital
Gastroenterologist Mouen Khashab specializes in therapeutic endoscopy, and he oversees this group of practitioners across the Johns Hopkins enterprise. Nationally and internationally known in the field of interventional endoscopy, Dr. Khashab has contributed immensely to the field’s advancement as a minimally invasive means to treat gastrointestinal and pancreaticobiliary disorders. Dr. Khashab earned his medical degree from the American University of Beirut Faculty of Medicine, and subsequently completed a residency in internal medicine and a fellowship in gastroenterology at Indiana University. He then completed a two-year fellowship at The Johns Hopkins Hospital before joining the faculty in 2011. A busy researcher, Dr. Khashab has published more than 600 papers in peer-reviewed journals. In 2013, he described the procedure called gastric peroral endoscopic myotomy (known as G-POEM) and was able to disseminate and teach it all over the world. Other procedures that he expanded include peroral endoscopic myotomy (POEM), peroral endoscopic myotomy with fundoplication (POEM-F), Zenker’s peroral endoscopic myotomy (Z-POEM) and full thickness resection. In 2022, he received the Master Endoscopist Award from the American Society for Gastrointestinal Endoscopy (ASGE) for his numerous contributions to the field. His procedural expertise includes endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), interventional EUS, submucosal endoscopy, POEM/achalasia, endoscopic mucosal resection, endoscopic submucosal dissection, luminal stenting, large polyp resection and Barrett’s therapy, among others. Dr. Khashab is involved with multiple gastrointestinal societies and has served on many committees, including the ASGE Standards of Practice Committee, which is in charge of formulating guidelines for the practice of endoscopy. He has also served as an associate editor for the journal Endoscopy, a premier journal in the field. Khashab is a highly sought-after speaker at national and international conferences, and he has participated in multiple live endoscopy conferences. Outside of academic medicine, Dr. Khashab is an entrepreneur. His major interest is in new technology and medical devices, and his goal is to disrupt the field by introducing technology that makes endoscopic procedures safer, easier, efficient and more scalable. Dr. Khashab is rated as an Elite provider by MediFind in the treatment of Gallbladder Disease. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.
Chesapeake Digestive Associates, PC
Joshua Forman is a Gastroenterologist in Annapolis, Maryland. Dr. Forman is rated as a Distinguished provider by MediFind in the treatment of Gallbladder Disease. His top areas of expertise are Choledocholithiasis, Gallstones, Bile Duct Obstruction, Endoscopy, 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.