Mary L. Horseman, CRNP
NPI 1598778680ActiveIndividual· Nurse Practitioner· Easton, MD
Nurse Practitioner (CRNP) with University of Maryland Community Medical Group Inc, practicing in Easton, Maryland. Their prescriptions cost Medicare Part D more than their services did: $116,060 for 984 claims, against $35,813 paid for services in 2024. Janssen Biotech, Inc. was the largest of 14 companies reporting payments in 2025, $899.98 in all, mostly food and beverage. Lists Luminis Health Anne Arundel Medical Center, Inc and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1598778680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | Aug 13, 2006 |
| Last updated in NPPES | Nov 1, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | R094441 | 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 (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 344 across 10 procedure codes |
| Paid by Medicare | $35,813 |
Part D prescriptions in 2024
| Prescriptions (claims) | 984 · 2,231 30-day fills |
|---|---|
| Patients | 278 |
| Total drug cost | $116,060 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- University of Maryland Community Medical Group IncEaston, MD · 477 clinicians
Hospital affiliations
- Luminis Health Anne Arundel Medical Center, IncAnnapolis, MD
- University of MD Shore Medical Center at EastonEaston, MD
- University of MD Shore Medical Ctr at ChestertownChestertown, MD
Industry payments (Open Payments)
- 2025$899.98 · 40 payments from 14 companies
- 2024$1,085 · 50 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $186.89 | 6 |
| Abbvie Inc. | $109.25 | 5 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $80.40 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $74.95 | 4 |
| Pfizer Inc. | $68.43 | 4 |
What the 2025 payments were for
- Food and Beverage$899.98 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 nurse practitioners in Easton · All nurse practitioners in Maryland