Anita Koszyk-Szewczyk, M.D.
NPI 1487871786ActiveIndividual· Internal Medicine, Hematology & Oncology· Chandler, AZ
Internal Medicine, Hematology & Oncology (M.D.) with Ironwood Physicians PC, practicing in Chandler, Arizona. In 2024 Medicare paid $1,339,425 for 595 patients, and Part D covered 1,498 of their prescriptions, 80% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 36 companies reporting payments in 2025, $3,211 in all, mostly food and beverage. Lists Chandler Regional Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1487871786 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2007 |
| Last updated in NPPES | Nov 15, 2022 |
| Certified by provider | Nov 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 41606 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 595 |
|---|---|
| Services billed | 156,221 across 109 procedure codes |
| Paid by Medicare | $1,339,425 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,498 · 2,786 30-day fills |
|---|---|
| Patients | 326 |
| Total drug cost | $1,530,233 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Ironwood Physicians PCChandler, AZ · 116 clinicians
Hospital affiliations
- Chandler Regional Medical CenterChandler, AZ
- Mercy Gilbert Medical CenterGilbert, AZ
Industry payments (Open Payments)
- 2025$3,211 · 153 payments from 36 companies
- 2024$3,088 · 158 payments from 39 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $508.78 | 22 |
| Abbvie Inc. | $282.99 | 17 |
| Daiichi Sankyo Inc. | $233.94 | 10 |
| Novartis Pharmaceuticals Corporation | $221.41 | 10 |
| Janssen Biotech, Inc. | $189.66 | 11 |
What the 2025 payments were for
- Food and Beverage$3,180 · 152 payments
- Education$30.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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