Mary Ellen Rose Hannan
NPI 1508565177ActiveIndividual· Nurse Practitioner, Acute Care· Washington, DC
Nurse Practitioner, Acute Care with Medstar Medical Group II LLC, practicing in Washington, District of Columbia. Medicare paid $9,444 for services to 41 patients in 2024. Lists Medstar Washington Hospital Center as a hospital affiliation.
Overview
| NPI | 1508565177 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 2, 2023 |
| Last updated in NPPES | Sep 1, 2023 |
| Certified by provider | Sep 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | NP1041434 | DC |
| Registered Nurse | 163W00000X | R240407 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 68 across 3 procedure codes |
| Paid by Medicare | $9,444 |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliation
- Medstar Washington Hospital CenterWashington, DC
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 165 acute care nurse practitioners in Washington · All acute care nurse practitioners in District of Columbia