Gina M. Dillig, M.D.
NPI 1114975158ActiveIndividual· Dermatology· Hinsdale, IL
Dermatology (M.D.) in Hinsdale, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2002). 823 Medicare patients in 2024, $502,060 paid; nearly all of their 1,066 Part D prescriptions were generic (92%). Janssen Biotech, Inc. was the largest of 18 companies reporting payments in 2025, $1,890 in all, mostly food and beverage.
Overview
| NPI | 1114975158 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 4, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | — | IL |
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 | 823 |
|---|---|
| Services billed | 7,969 across 105 procedure codes |
| Paid by Medicare | $502,060 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,066 · 1,258 30-day fills |
|---|---|
| Patients | 468 |
| Total drug cost | $292,930 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Dermatology |
Medical group
- Dermatologists of Illinois, PLLCLake Forest, IL · 12 clinicians
Industry payments (Open Payments)
- 2025$1,890 · 84 payments from 18 companies
- 2024$1,823 · 83 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $468.47 | 17 |
| Abbvie Inc. | $315.76 | 18 |
| Pfizer Inc. | $263.32 | 14 |
| Genzyme Corporation | $196.11 | 6 |
| Lilly USA, LLC | $107.58 | 6 |
What the 2025 payments were for
- Food and Beverage$1,825 · 83 payments
- Education$64.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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