Alan Martin Antfleck, M.D.
NPI 1154365559ActiveIndividual· Internal Medicine· Kenmore, NY
Internal Medicine (M.D.) in Kenmore, New York, licensed in NY, with an NPI issued in June 2006. Their prescriptions cost Medicare Part D more than their services did: $237,662 for 1,743 claims, against $4,796 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 10 companies reporting payments in 2025, $1,665 in all, mostly food and beverage. Lists Kaleida Health and 1 other hospital as hospital affiliations.
Overview
| NPI | 1154365559 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Aug 17, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 237938 | 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 | 23 |
|---|---|
| Services billed | 70 across 5 procedure codes |
| Paid by Medicare | $4,796 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,743 · 3,707 30-day fills |
|---|---|
| Patients | 104 |
| Total drug cost | $237,662 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Kenmore Mercy HospitalKenmore, NY
Industry payments (Open Payments)
- 2025$1,665 · 20 payments from 10 companies
- 2024$2,486 · 52 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $345.75 | 3 |
| Astrazeneca Pharmaceuticals LP | $268.86 | 5 |
| Novo Nordisk Inc | $248.17 | 5 |
| Paratek Pharmaceuticals, Inc. | $125.00 | 1 |
| Teva Pharmaceuticals USA, Inc. | $124.99 | 1 |
What the 2025 payments were for
- Food and Beverage$1,665 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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