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

Mary Ellen Rose Hannan

Individual provider Registered Nurse · NPI 1508565177

Mary Ellen Rose Hannan is a Nurse Practitioner in Washington, District of Columbia. Qualified in 2023, 3 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
3
Licensed in
DC, MD
In the registry since
2023
Specialties on file
2
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Practice location Address checks out

110 Irving St NW
Washington, DC 20010-3017
Phone: (202) 877-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence NP1041434 (DC)
Registered Nurse Taxonomy 163W00000X · Licence R240407 (MD)

Record details

NPI number1508565177
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 2, 2023
Last updated in NPPESSeptember 1, 2023
Certification dateSeptember 1, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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