Peter P. Michalak, MD
NPI 1104321777ActiveIndividual· Family Medicine· Tucson, AZ
Family Medicine (MD) with Arizona Community Physicians PC, practicing in Tucson, Arizona. Their prescriptions cost Medicare Part D more than their services did: $429,973 for 4,772 claims, against $112,864 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 13 companies reporting payments in 2025, $760.48 in all, mostly food and beverage. Lists Northwest Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1104321777 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2018 |
| Last updated in NPPES | Jun 18, 2026 |
| Certified by provider | Jun 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 64431 | AZ |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Family Practice (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 300 |
|---|---|
| Services billed | 3,185 across 96 procedure codes |
| Paid by Medicare | $112,864 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,772 · 12,388 30-day fills |
|---|---|
| Patients | 468 |
| Total drug cost | $429,973 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Arizona Community Physicians PCTucson, AZ · 161 clinicians
Hospital affiliations
- Northwest Medical CenterTucson, AZ
- Oro Valley HospitalOro Valley, AZ
- Tucson Medical CenterTucson, AZ
Other facilities
- Bayada Home Health Care, IncHome health agency · Tucson, AZ
Industry payments (Open Payments)
- 2025$760.48 · 60 payments from 13 companies
- 2024$586.87 · 43 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $249.79 | 21 |
| Amgen Inc. | $159.27 | 20 |
| Exact Sciences Corporation | $58.21 | 3 |
| Abbvie Inc. | $57.03 | 3 |
| Novo Nordisk Inc | $49.35 | 3 |
What the 2025 payments were for
- Food and Beverage$760.48 · 60 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Tucson
- 1003478728
- 1013927607
- 1013989078
- 1023304250
- 1053994525
- 1063948396
- 1083653687
- 1093915928
- 1114509882
- 1124265285
- 1134307903
- 1144258880
All 643 family medicine physicians in Tucson · All family medicine physicians in Arizona