Michael G. Olaciregui, M.D.
NPI 1811094972ActiveIndividual· Internal Medicine· Milwaukee, WI
Internal Medicine (M.D.) with Interpedia SC, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $468,972 for 3,987 claims, against $6,872 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $604.34 in all, mostly food and beverage.
Overview
| NPI | 1811094972 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 42851-020 | WI |
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 - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 111 across 7 procedure codes |
| Paid by Medicare | $6,872 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,987 · 5,988 30-day fills |
|---|---|
| Patients | 75 |
| Total drug cost | $468,972 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Interpedia SCMilwaukee, WI · 5 clinicians
Industry payments (Open Payments)
- 2025$604.34 · 32 payments from 7 companies
- 2024$508.13 · 27 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $335.20 | 17 |
| Abbvie Inc. | $93.09 | 5 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $54.96 | 3 |
| Lilly USA, LLC | $51.84 | 2 |
| Kowa Pharmaceuticals America, Inc. | $32.97 | 2 |
What the 2025 payments were for
- Food and Beverage$604.34 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Milwaukee
- 1104892868
- 1124037437
- 1134234776
- 1164491940
- 1164645164
- 1184678914
- 1194784629
- 1205244001
- 1205820958
- 1205915105
- 1215966510
- 1235128844
All 416 internal medicine physicians in Milwaukee · All internal medicine physicians in Wisconsin