Marc Allen, DO
NPI 1356309892ActiveIndividual· Internal Medicine· Commack, NY
Internal Medicine (DO) with Dr Marc Allen Medical PC, practicing in Commack, New York. 597 Medicare patients in 2024, $841,249 paid; nearly all of their 8,661 Part D prescriptions were generic (90%). Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $162.85 in all, mostly food and beverage. Lists St Charles Hospital as a hospital affiliation.
Overview
| NPI | 1356309892 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2238341 | NY |
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) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 597 |
|---|---|
| Services billed | 12,796 across 77 procedure codes |
| Paid by Medicare | $841,249 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,661 · 18,388 30-day fills |
|---|---|
| Patients | 741 |
| Total drug cost | $604,612 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dr Marc Allen Medical PCSmithtown, NY · 6 clinicians
Hospital affiliation
- St Charles HospitalPort Jefferson, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- Gurwin Certified Home Health AgencyHome health agency · Commack, NY
- Peconic Bay Homehealth ServicesHome health agency · Riverhead, NY
- Vns & Hospice of Suffolk Inc ChhaHome health agency · Northport, NY
Industry payments (Open Payments)
- 2025$162.85 · 3 payments from 2 companies
- 2024$38.30 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $140.30 | 2 |
| Otsuka America Pharmaceutical, Inc. | $22.55 | 1 |
What the 2025 payments were for
- Food and Beverage$162.85 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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