Marjorie K. Stock, M.D.
NPI 1518914209ActiveIndividual· Otolaryngology, Sleep Medicine· Derry, NH
Otolaryngology, Sleep Medicine (M.D.) in Derry, New Hampshire, trained at University of Massachusetts Medical School (class of 1987). 359 Medicare patients in 2024, $46,242 paid; nearly all of their 422 Part D prescriptions were generic (98%).
Overview
| NPI | 1518914209 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 28, 2006 |
| Last updated in NPPES | Sep 30, 2024 |
| Certified by provider | Sep 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology, Sleep Medicine Primary | 207YS0012X | 9663 | NH |
| Otolaryngology | 207Y00000X | 77163 | MA |
| Otolaryngology | 207Y00000X | 9663 | NH |
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 - Otolaryngology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 359 |
|---|---|
| Services billed | 1,082 across 24 procedure codes |
| Paid by Medicare | $46,242 |
Part D prescriptions in 2024
| Prescriptions (claims) | 422 · 583 30-day fills |
|---|---|
| Patients | 160 |
| Total drug cost | $9,842 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Massachusetts Medical School |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Otolaryngology |
Medical group
- Core Physicians LLCExeter, NH · 289 clinicians
Hospital affiliation
- Elliot HospitalManchester, NH
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records