Dr. Ghassan A. Alzayer, MD

Dr. Alzayer practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.

Dr. Alzayer's NPI, 1396144804, was assigned on August 20, 2014. Dr. Alzayer graduated from University of Dammam in 2010. Dr. Alzayer holds District of Columbia license MD046302.

Dr. Alzayer's primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.

Dr. Alzayer's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. The medical group on file is MedStar Medical Group.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alzayer practices. Vendor and product names are available with a free account.

Gastroenterology is Dr. Alzayer's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Alzayer is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Alzayer's licenses on file in 4 states: District of Columbia, Maryland, Virginia and Massachusetts.

Dmand AI lists acid reflux, acute gastroduodenitis, colonoscopy, gastroenteritis, intestinal diverticulosis, irritable bowel syndrome (IBS), peptic ulcer and upper GI endoscopy among the conditions Dr. Alzayer treats.

CMS data shows 461 Medicare services from Dr. Alzayer across 11 procedure codes in 2024, for 346 Medicare patients. Medicare paid $57,020 for them.

CMS counts 346 Medicare patients who saw Dr. Alzayer in 2024. The largest group is 65 to 74, with 159 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.41, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Alzayer's median patient age at 54, with 57% women.

In 2024, Dr. Alzayer wrote 409 Medicare Part D claims for 188 patients. 91% of them were for generic drugs. CMS names the drug for 323 of them, across 7 drugs with 11 or more claims each, at $7,772 in total drug cost. In 2023, CMS named 188 claims across 5 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Alzayer for performance year 2024, reported as part of a group. Dr. Alzayer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Alzayer as offering telehealth. CMS counts 83 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Alzayer, more than 73% of the clinicians it reports for that procedure.

CMS Open Payments shows 24 general payments to Dr. Alzayer from 7 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 93% of the total. Gilead Sciences, Inc. paid the most, $609.

Dr. Alzayer graduated from University of Dammam in 2010. Dr. Alzayer is a member of ACG, AGA, AMA and ASGE.

Dr. Alzayer is in network with 17 carriers, including Aetna, United Healthcare and CareFirst BlueCross BlueShield. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.