John Lindsay Marshall

John Marshall practices at Medstar Georgetown Medical Center in Washington, District of Columbia.

John Marshall's NPI, 1316935844, was assigned on October 10, 2005. John Marshall graduated from University of Louisville School of Medicine in 1988. John Marshall holds District of Columbia license 19655.

John Marshall's primary practice is Medstar Georgetown Medical Center, at 3800 Reservoir NW Rd, Washington, DC 20007 in District Of Columbia County. The practice phone is (202) 444-1400.

John Marshall's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. John Marshall is also affiliated with MedStar Washington Hospital Center. The medical group on file is MedStar Medical Group. Dmand AI also links John Marshall to 1 more hospital and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where John Marshall practices, 2 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is John Marshall's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. John Marshall is licensed in District of Columbia.

CMS data shows 324 Medicare services from John Marshall across 5 procedure codes in 2024, for 97 Medicare patients. Medicare paid $36,849 for them.

CMS counts 97 Medicare patients who saw John Marshall in 2024. The largest group is 65 to 74, with 49 patients. 72% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 2.34, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts John Marshall's median patient age at 65, with 49% women.

In 2024, John Marshall wrote 186 Medicare Part D claims for 32 patients. 71% of them were for generic drugs. CMS names the drug for 100 of them, across 7 drugs with 11 or more claims each, at $451,517 in total drug cost. In 2023, CMS named 40 claims across 3 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for John Marshall for performance year 2024, reported as part of a group. John Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists John Marshall as offering telehealth.

Dmand AI links John Marshall to 1 clinical trial. Conditions studied include Alzheimer Disease and Tauopathies. Open Payments lists research payments to John Marshall that name 1 trial.

CMS Open Payments shows 795 general payments to John Marshall from 24 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 58% of the total. Genentech, Inc. paid the most, $170,925. It also lists 1 research payment totaling $879 in 2016, naming 1 clinical trial.

John Marshall graduated from University of Louisville School of Medicine in 1988.