Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Mary Ellen Flanagan, AGNP

Individual provider Nurse Practitioner · NPI 1033763297

MS. Mary Ellen Flanagan, AGNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2019, 7 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
7
Licensed in
MO
In the registry since
2019
What do these letters mean?
AGNP — Adult-Gerontology Nurse Practitioner
A nurse practitioner focused on adults and older people.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4921 Parkview Pl Div Im Medical Oncology Ste 7A 7B 7C
Saint Louis, MO 63110-1032
Phone: (800) 647-2098
Fax: (314) 362-3192
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 2019036143 (MO)

Record details

NPI number1033763297
Entity typeIndividual (Type 1)
GenderFemale
Credentials AGNP
Sole proprietorNo
NPI enumeratedJuly 26, 2019
Last updated in NPPESApril 17, 2025
Certification dateMarch 11, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Saint Louis