Katarzyna Twardowska, MD
NPI 1790881795ActiveIndividual· Internal Medicine· Anaheim, CA
Internal Medicine (MD) with Southern California Hospitalist Network Medical Group Inc, practicing in Anaheim, California. 548 Medicare patients in 2024, $203,234 paid; nearly all of their 1,810 Part D prescriptions were generic (90%). Teva Pharmaceuticals USA, Inc. reported $23.37 in payments in 2025, mostly food and beverage. Lists Huntington Hospital as a hospital affiliation.
Overview
| NPI | 1790881795 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 16, 2006 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A69481 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 548 |
|---|---|
| Services billed | 2,194 across 11 procedure codes |
| Paid by Medicare | $203,234 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,810 · 2,134 30-day fills |
|---|---|
| Patients | 253 |
| Total drug cost | $120,847 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Southern California Hospitalist Network Medical Group IncOrange, CA · 77 clinicians
Hospital affiliation
- Huntington HospitalPasadena, CA
Other facilities
- Guiding Hope Home HealthHome health agency · Santa Clarita, CA
- Happy Visit Home HealthHome health agency · Los Angeles, CA
- Total Care Home Health Care, IncHome health agency · Burbank, CA
- Affinity Hospice, IncHospice · Burbank, CA
- Holistic Hospice and Palliative Care, IncHospice · Burbank, CA
- Gem TcuNursing home · Pasadena, CA
- The Bellefontaine Healthcare CenterNursing home · Pasadena, CA
- The Californian Pasadena HealthcareNursing home · Pasadena, CA
Industry payments (Open Payments)
- 2025$23.37 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. | $23.37 | 1 |
What the 2025 payments were for
- Food and Beverage$23.37 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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