Mark Thomas
NPI 1649959487ActiveIndividual· Nurse Practitioner, Family· Plainview, NY
Nurse Practitioner, Family with Samaritan Medical Services PC and 1 other group, practicing in Plainview, New York. 120 Medicare patients in 2024, $5,810 paid; nearly all of their 86 Part D prescriptions were generic (90%). Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $70.42 in all, mostly food and beverage. Lists St Catherine of Siena Hospital as a hospital affiliation.
Overview
| NPI | 1649959487 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 17, 2023 |
| Last updated in NPPES | May 21, 2024 |
| Certified by provider | May 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | F352368-01 | 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 | 120 |
|---|---|
| Services billed | 152 across 7 procedure codes |
| Paid by Medicare | $5,810 |
Part D prescriptions in 2024
| Prescriptions (claims) | 86 · 88 30-day fills |
|---|---|
| Patients | 45 |
| Total drug cost | $800.89 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Samaritan Medical Services PCWest Islip, NY · 354 clinicians
- Sumaiyah Medical PCHuntington Station, NY · 6 clinicians
Hospital affiliation
- St Catherine of Siena HospitalSmithtown, NY
Industry payments (Open Payments)
- 2025$70.42 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $44.15 | 2 |
| Melinta Therapeutics, LLC | $26.27 | 1 |
What the 2025 payments were for
- Food and Beverage$70.42 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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