Zachary P. Allegretti, MD
NPI 1952807554ActiveIndividual· Family Medicine· Lake Geneva, WI
Family Medicine (MD) with Aurora Medical Group, Inc. and 1 other group, practicing in Lake Geneva, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $787,963 for 8,344 claims, against $105,194 paid for services in 2024. Lists Aurora Lakeland Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1952807554 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 3, 2018 |
| Last updated in NPPES | Nov 18, 2021 |
| Certified by provider | Nov 18, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 75016 | WI |
| Family Medicine | 207Q00000X | 52613 | SC |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 1,604 across 31 procedure codes |
| Paid by Medicare | $105,194 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,344 · 18,418 30-day fills |
|---|---|
| Patients | 574 |
| Total drug cost | $787,963 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
- Advantage Physical Therapy and Sports Rehab, LLCKenosha, WI · 294 clinicians
Hospital affiliations
- Aurora Lakeland Medical CenterElkhorn, WI
- Aurora Memorial Hospital BurlingtonBurlington, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
Other facilities
- Aurora at HomeHome health agency · Milwaukee, WI
- Aurora at HomeHospice · Wauwatosa, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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