Ann M. Griesacker, CRNP
NPI 1437442993ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Erie, PA
Nurse Practitioner, Psych/Mental Health (CRNP) with Millcreek Community Hospital and 1 other group, practicing in Erie, Pennsylvania. Part D covered 138 prescriptions written in 2024, 99% of them generic. Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $539.63 in all, mostly food and beverage.
Overview
| NPI | 1437442993 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | May 17, 2011 |
| Last updated in NPPES | Jan 24, 2023 |
| Certified by provider | Jan 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | SP011370 | PA |
| Nurse Practitioner, Family | 363LF0000X | SP011370 | PA |
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 (PA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 138 · 242 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $2,869 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Millcreek Community HospitalErie, PA · 66 clinicians
- Bay City Psychiatry, LLCErie, PA · 3 clinicians
Industry payments (Open Payments)
- 2025$539.63 · 37 payments from 5 companies
- 2024$145.49 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $281.34 | 26 |
| Alkermes, Inc. | $142.91 | 4 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $64.44 | 3 |
| Corium, LLC | $33.98 | 3 |
| Otsuka America Pharmaceutical, Inc. | $16.96 | 1 |
What the 2025 payments were for
- Food and Beverage$539.63 · 37 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 psychiatric nurse practitioners in Erie · All psychiatric nurse practitioners in Pennsylvania