Mary Ellen Flanagan, AGNP

Mary Flanagan practices at Washington University School of Medicine in Saint Louis, Missouri.

Mary Flanagan's NPI, 1033763297, was assigned on July 26, 2019. Mary Flanagan holds Missouri license 2019036143.

Mary Flanagan's primary practice is Washington University School of Medicine, at 5225 Midamerica Plz, Saint Louis, MO 63129 in Saint Louis County. The practice phone is (314) 747-5192.

Mary Flanagan's primary practice is Washington University School of Medicine in Saint Louis, Missouri. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Mary Flanagan to 1 more group practice or clinic, named with a free account.

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

Nurse practitioner is Mary Flanagan's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Mary Flanagan is licensed in Missouri.

CMS counts 170 Medicare patients who saw Mary Flanagan in 2024. The largest group is 65 to 74, with 97 patients. 75% of them have cancer, and 74% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Mary Flanagan's median patient age at 70, with 55% women.

In 2024, Mary Flanagan wrote 29 Medicare Part D claims for 16 patients. 41% of them were for generic drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Mary Flanagan for performance year 2024, reported as part of a group. Mary Flanagan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 8 general payments to Mary Flanagan from 6 drug and device companies in 2025. Consulting fees make up the largest share, 77% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,300.