Nilanthi Gunawardane, M.D.
NPI 1124351051ActiveIndividual· Dermatology· Orange, CA
Dermatology (M.D.) in Orange, California, trained at Harvard Medical School (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $252,940 for 1,183 claims, against $55,252 paid for services in 2024. Janssen Biotech, Inc. was the largest of 14 companies reporting payments in 2025, $1,587 in all, mostly food and beverage.
Overview
| NPI | 1124351051 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 10, 2009 |
| Last updated in NPPES | Jul 14, 2023 |
| Certified by provider | Jul 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 130772 | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 220 |
|---|---|
| Services billed | 770 across 31 procedure codes |
| Paid by Medicare | $55,252 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,183 · 1,261 30-day fills |
|---|---|
| Patients | 487 |
| Total drug cost | $252,940 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Dermatology |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Industry payments (Open Payments)
- 2025$1,587 · 65 payments from 14 companies
- 2024$1,212 · 49 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $323.28 | 14 |
| Abbvie Inc. | $280.55 | 11 |
| Genzyme Corporation | $266.39 | 6 |
| Novartis Pharmaceuticals Corporation | $203.50 | 15 |
| Mallinckrodt Hospital Products Inc. | $113.74 | 4 |
What the 2025 payments were for
- Food and Beverage$1,587 · 65 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 dermatologists in Orange · All dermatologists in California