Roger Kornu, M.D.
NPI 1841386349ActiveIndividual· Internal Medicine, Rheumatology· Tustin, CA
Internal Medicine, Rheumatology (M.D.) in Tustin, California, trained at University of Texas Southwestern Medical School at Dallas (class of 1999). In 2024 Medicare paid $5,257,936 for 817 patients, and Part D covered 1,544 of their prescriptions, 87% of them generic. Amgen Inc. was the largest of 17 companies reporting payments in 2025, $157,327 in all, mostly speaking and faculty fees.
Overview
| NPI | 1841386349 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 4, 2006 |
| Last updated in NPPES | Jan 30, 2026 |
| Certified by provider | Jan 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A78140 | CA |
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 - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 817 |
|---|---|
| Services billed | 346,890 across 53 procedure codes |
| Paid by Medicare | $5,257,936 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,544 · 3,085 30-day fills |
|---|---|
| Patients | 405 |
| Total drug cost | $859,000 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- Roger Kornu MD PCTustin, CA · 3 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Comfort at HomeHome health agency · Woodland Hills, CA
Industry payments (Open Payments)
- 2025$157,327 · 401 payments from 17 companies
- 2024$113,484 · 307 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $66,905 | 126 |
| Abbvie Inc. | $42,245 | 89 |
| Ucb, Inc. | $22,625 | 49 |
| Novartis Pharmaceuticals Corporation | $7,942 | 28 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $6,975 | 16 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$89,263 · 41 payments
- Consulting Fee$39,170 · 13 payments
- Travel and Lodging$18,090 · 63 payments
- Food and Beverage$10,805 · 284 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Rheumatology providers in California →