John Steven Walczyk, M.D.
NPI 1043233166ActiveIndividual· Dermatology· Manhasset, NY
Dermatology (M.D.) in Manhasset, New York, trained at Columbia University College of Physicians and Surgeons (class of 1990). 868 Medicare patients in 2024, $565,150 paid; nearly all of their 899 Part D prescriptions were generic (95%). Amgen Inc. was the largest of 4 companies reporting payments in 2025, $327.24 in all, mostly food and beverage.
Overview
| NPI | 1043233166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 191586 | 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 - Dermatology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 868 |
|---|---|
| Services billed | 26,377 across 32 procedure codes |
| Paid by Medicare | $565,150 |
Part D prescriptions in 2024
| Prescriptions (claims) | 899 · 1,096 30-day fills |
|---|---|
| Patients | 327 |
| Total drug cost | $88,171 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Dermatology |
Medical group
- Schweiger Dermatology PLLCNew York, NY · 260 clinicians
Industry payments (Open Payments)
- 2025$327.24 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $151.30 | 7 |
| Abbvie Inc. | $96.56 | 4 |
| Incyte Corporation | $57.51 | 3 |
| Leo Pharma Inc. | $21.87 | 1 |
What the 2025 payments were for
- Food and Beverage$327.24 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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