Jennifer L. Chwalek, MD
NPI 1407999667ActiveIndividual· Dermatology· Union City, CA
Dermatology (MD) in Union City, California, trained at University of Maryland School of Medicine (class of 2003). 158 Medicare patients in 2024, $130,877 paid; nearly all of their 137 Part D prescriptions were generic (99%). Mayne Pharma Commercial LLC was the largest of 10 companies reporting payments in 2025, $471.61 in all, mostly food and beverage.
Overview
| NPI | 1407999667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Feb 15, 2007 |
| Last updated in NPPES | Jun 10, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A88261 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (NJ); Practitioner - Dermatology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 566 across 48 procedure codes |
| Paid by Medicare | $130,877 |
Part D prescriptions in 2024
| Prescriptions (claims) | 137 · 144 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $1,656 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Dermatology |
Medical groups
- Schweiger Dermatology PCNorthfield, NJ · 186 clinicians
- Union Square Laser DermatologyNew York, NY · 4 clinicians
Industry payments (Open Payments)
- 2025$471.61 · 22 payments from 10 companies
- 2024$329.05 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $90.06 | 4 |
| Leo Pharma Inc. | $88.22 | 3 |
| Botanix Sb Inc | $71.96 | 4 |
| Abbvie Inc. | $71.87 | 4 |
| Arcutis Biotherapeutics, Inc. | $48.82 | 2 |
What the 2025 payments were for
- Food and Beverage$471.61 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology providers in Union City
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- 1609070051
- 1093893851