Regina O'Brien, M.D.
NPI 1548617350ActiveIndividual· Dermatology· Chicago, IL
Dermatology (M.D.) in Chicago, Illinois, trained at Wayne State University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $484,855 for 884 claims, against $126,385 paid for services in 2024. Janssen Biotech, Inc. was the largest of 20 companies reporting payments in 2025, $2,088 in all, mostly food and beverage.
Overview
| NPI | 1548617350 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 22, 2016 |
| Last updated in NPPES | Sep 1, 2026 |
| Certified by provider | Sep 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 125.069177 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 554 |
|---|---|
| Services billed | 5,418 across 40 procedure codes |
| Paid by Medicare | $126,385 |
Part D prescriptions in 2024
| Prescriptions (claims) | 884 · 1,004 30-day fills |
|---|---|
| Patients | 301 |
| Total drug cost | $484,855 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Dermatology |
Medical group
- Illinois Dermatology Institute, LLCLa Grange, IL · 57 clinicians
Industry payments (Open Payments)
- 2025$2,088 · 115 payments from 20 companies
- 2024$1,927 · 103 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $352.70 | 14 |
| Abbvie Inc. | $299.23 | 20 |
| Galderma Laboratories, L.P. | $194.73 | 21 |
| Novartis Pharmaceuticals Corporation | $188.13 | 8 |
| Ucb, Inc. | $152.41 | 8 |
What the 2025 payments were for
- Food and Beverage$2,088 · 115 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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