Mark Alan Koenig, D.O.
NPI 1831252964ActiveIndividual· Family Medicine· Miller Place, NY
Family Medicine (D.O.) in Miller Place, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $511,922 for 4,971 claims, against $127,075 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $2,865 in all, mostly food and beverage.
Overview
| NPI | 1831252964 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Dec 19, 2006 |
| Last updated in NPPES | Aug 16, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 174687 | 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 - Family Practice (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 278 |
|---|---|
| Services billed | 4,124 across 69 procedure codes |
| Paid by Medicare | $127,075 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,971 · 12,439 30-day fills |
|---|---|
| Patients | 422 |
| Total drug cost | $511,922 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
| Secondary specialties | Osteopathic Manipulative Medicine |
Medical group
- Caremed Primary and Urgent Care PCPatchogue, NY · 21 clinicians
Hospital affiliation
- St Charles HospitalPort Jefferson, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- Constellation Home CareHome health agency · Syosset, NY
- Tender Loving Care, An Amedisys CompanyHome health agency · Medford, NY
Industry payments (Open Payments)
- 2025$2,865 · 79 payments from 17 companies
- 2024$2,120 · 62 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $539.34 | 21 |
| Amgen Inc. | $408.17 | 13 |
| Regeneron Healthcare Solutions, Inc. | $362.67 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $284.02 | 8 |
| Optinose US, Inc. | $261.82 | 2 |
What the 2025 payments were for
- Food and Beverage$2,865 · 79 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Family Medicine providers in Miller Place
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- 1114092061
- 1033176805