John Spencer Herendeen, MD
NPI 1104406834ActiveIndividual· Neurological Surgery· Boston, MA
Neurological Surgery (MD) in Boston, Massachusetts, licensed in MA, with an NPI issued in April 2021. Part D covered 37 prescriptions written in 2024, 84% of them generic. Stryker Corporation reported $20.58 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1104406834 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 8, 2021 |
| Last updated in NPPES | Jun 21, 2021 |
| Certified by provider | Jun 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 289703 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 37 · 47 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $2,980 |
| Generic share | 84% of claims |
Industry payments (Open Payments)
- 2025$20.58 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $20.58 | 1 |
What the 2025 payments were for
- Food and Beverage$20.58 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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