Katarzyna Trebska, MD
NPI 1902198815ActiveIndividual· Surgery· Chandler, AZ
Surgery (MD) in Chandler, Arizona, trained at University of Tennessee, Hsc, College of Medicine (class of 2021). Mostly services rather than prescriptions: Medicare paid $24,172 for 91 patients in 2024, with only 46 Part D claims. Astrazeneca Pharmaceuticals LP was the largest of 24 companies reporting payments in 2025, $1,617 in all, mostly food and beverage.
Overview
| NPI | 1902198815 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2011 |
| Last updated in NPPES | Nov 15, 2022 |
| Certified by provider | Nov 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 62491 | AZ |
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 - General Surgery (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 182 across 19 procedure codes |
| Paid by Medicare | $24,172 |
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 46 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $299.32 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | General Surgery |
Medical group
- Ironwood Physicians PCChandler, AZ · 116 clinicians
Hospital affiliation
- Chandler Regional Medical CenterChandler, AZ
Industry payments (Open Payments)
- 2025$1,617 · 67 payments from 24 companies
- 2024$3,022 · 77 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $226.52 | 11 |
| Novartis Pharmaceuticals Corporation | $164.18 | 8 |
| Stryker Corporation | $162.57 | 1 |
| Daiichi Sankyo Inc. | $158.19 | 6 |
| Merck Sharp & Dohme LLC | $137.29 | 8 |
What the 2025 payments were for
- Food and Beverage$1,617 · 67 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other general surgeons in Chandler
- 1194781344
- 1386890556
- 1558561977
- 1609917418
- 1659331676
- 1811959703
- 1861473506
- 1891766127
- 1356322192
- 1760943377
- 1104837855
- 1265800882
All 25 general surgeons in Chandler · All general surgeons in Arizona