Daniel M. Birk, MD
NPI 1578880274ActiveIndividual· Neurological Surgery· Commack, NY
Neurological Surgery (MD) in Commack, New York, trained at Columbia University College of Physicians and Surgeons (class of 2010). 110 Medicare patients in 2024, $59,737 paid; nearly all of their 121 Part D prescriptions were generic (98%). Depuy Synthes Sales Inc. was the largest of 6 companies reporting payments in 2025, $835.32 in all, mostly food and beverage.
Overview
| NPI | 1578880274 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 21, 2010 |
| Last updated in NPPES | Feb 2, 2020 |
| Certified by provider | Feb 2, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 287264 | 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 - Neurosurgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 110 |
|---|---|
| Services billed | 295 across 32 procedure codes |
| Paid by Medicare | $59,737 |
Part D prescriptions in 2024
| Prescriptions (claims) | 121 · 121 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $1,313 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Neurosurgery |
Medical group
- Nitin Mariwalla MD PLLCWest Islip, NY · 12 clinicians
Hospital affiliations
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY
- St Catherine of Siena HospitalSmithtown, NY
- St Charles HospitalPort Jefferson, NY
Industry payments (Open Payments)
- 2025$835.32 · 26 payments from 6 companies
- 2024$964.53 · 42 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Depuy Synthes Sales Inc. | $297.27 | 17 |
| Globus Medical, Inc. | $238.94 | 4 |
| Providence Medical Technology, Inc. | $222.49 | 1 |
| Spineology Inc. | $36.36 | 2 |
| Abbott Laboratories | $22.87 | 1 |
What the 2025 payments were for
- Food and Beverage$835.32 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records