Mary Gwynne Tillotson, PMHNP
NPI 1780284869ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Niagara Falls, NY
Nurse Practitioner, Psych/Mental Health (PMHNP) with Niagara Falls Memorial Medical Center, practicing in Niagara Falls, New York. Their prescriptions cost Medicare Part D more than their services did: $863,699 for 6,031 claims, against $6,717 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 11 companies reporting payments in 2025, $2,055 in all, mostly food and beverage. Lists Mount St. Mary's Hospital & Health Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1780284869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP |
| Sole proprietor | Yes |
| NPI issued | Oct 28, 2020 |
| Last updated in NPPES | Jan 20, 2022 |
| Certified by provider | Jan 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 403249 | NY |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 156 across 3 procedure codes |
| Paid by Medicare | $6,717 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,031 · 6,406 30-day fills |
|---|---|
| Patients | 275 |
| Total drug cost | $863,699 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Niagara Falls Memorial Medical CenterNiagara Falls, NY · 70 clinicians
Hospital affiliations
- Mount St. Mary's Hospital & Health CenterLewiston, NY
- Niagara Falls Memorial Medical CenterNiagara Falls, NY
Industry payments (Open Payments)
- 2025$2,055 · 96 payments from 11 companies
- 2024$2,037 · 103 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $335.75 | 13 |
| E.R. Squibb & Sons, L.L.C. | $327.17 | 15 |
| Vanda Pharmaceuticals Inc. | $305.01 | 13 |
| Teva Pharmaceuticals USA, Inc. | $288.96 | 18 |
| Axsome Therapeutics, Inc. | $212.14 | 5 |
What the 2025 payments were for
- Food and Beverage$2,050 · 95 payments
- Education$5.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other psychiatric nurse practitioners in Niagara Falls
- 1386794006
- 1649711714
- 1790393585
- 1184215964
- 1013548361
- 1649751942
- 1265781025
- 1508623935
- 1437847506
- 1487402426
- 1669284980
- 1235391525