Walker Mainwaring, MD
NPI 1447888144ActiveIndividual· Dermatology· Forest Hills, NY
Dermatology (MD) in Forest Hills, New York, trained at Baylor College of Medicine (class of 2020). 71 Medicare patients in 2024, $12,304 paid; nearly all of their 157 Part D prescriptions were generic (96%). Janssen Biotech, Inc. was the largest of 14 companies reporting payments in 2025, $1,969 in all, mostly food and beverage.
Overview
| NPI | 1447888144 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 29, 2020 |
| Last updated in NPPES | Jul 9, 2024 |
| Certified by provider | Jul 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 329828 | 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 | 71 |
|---|---|
| Services billed | 186 across 21 procedure codes |
| Paid by Medicare | $12,304 |
Part D prescriptions in 2024
| Prescriptions (claims) | 157 · 161 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $9,129 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Dermatology |
Medical group
- Schweiger Dermatology PLLCNew York, NY · 260 clinicians
Industry payments (Open Payments)
- 2025$1,969 · 120 payments from 14 companies
- 2024$1,073 · 25 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $457.97 | 33 |
| Arcutis Biotherapeutics, Inc. | $321.10 | 22 |
| Incyte Corporation | $235.40 | 20 |
| Sun Pharmaceutical Industries Inc. | $197.22 | 12 |
| Abbvie Inc. | $151.51 | 8 |
What the 2025 payments were for
- Food and Beverage$1,889 · 119 payments
- Education$79.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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