Clayton R. Polowy, MD
NPI 1336112119ActiveIndividual· Internal Medicine, Hematology & Oncology· Mesa, AZ
Internal Medicine, Hematology & Oncology (MD) in Mesa, Arizona, trained at State University of New York at Buffalo School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $2,793,145 for 1,508 claims, against $895,112 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 48 companies reporting payments in 2025, $3,631 in all, mostly food and beverage.
Overview
| NPI | 1336112119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 10, 2006 |
| Last updated in NPPES | Feb 24, 2023 |
| Certified by provider | Feb 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 32750 | 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 - Medical Oncology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 422 |
|---|---|
| Services billed | 82,263 across 104 procedure codes |
| Paid by Medicare | $895,112 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,508 · 2,646 30-day fills |
|---|---|
| Patients | 283 |
| Total drug cost | $2,793,145 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Ironwood Physicians PCChandler, AZ · 116 clinicians
Hospital affiliations
- Banner Baywood Medical CenterMesa, AZ
- Banner Desert Medical CenterMesa, AZ
- Banner Gateway Medical CenterGilbert, AZ
- Chandler Regional Medical CenterChandler, AZ
- Mercy Gilbert Medical CenterGilbert, AZ
Industry payments (Open Payments)
- 2025$3,631 · 166 payments from 48 companies
- 2024$2,467 · 112 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $393.81 | 17 |
| Janssen Biotech, Inc. | $334.47 | 20 |
| Novartis Pharmaceuticals Corporation | $183.12 | 8 |
| Abbvie Inc. | $179.66 | 11 |
| Daiichi Sankyo Inc. | $173.43 | 8 |
What the 2025 payments were for
- Food and Beverage$3,614 · 165 payments
- Education$17.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 hematologist-oncologists in Mesa · All hematologist-oncologists in Arizona