Joseph L. Shaker, MD
NPI 1164561247ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Menomonee Falls, WI
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Menomonee Falls, Wisconsin, trained at Georgetown University School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $3,853,568 for 383 claims, against $78,432 paid for services in 2024.
Overview
| NPI | 1164561247 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 6, 2007 |
| Last updated in NPPES | Mar 19, 2020 |
| Certified by provider | Mar 19, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 28432 | WI |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | M9870 | ID |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 7,757 across 17 procedure codes |
| Paid by Medicare | $78,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 383 · 817 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $3,853,568 |
| Generic share | 46% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Medical groups
- The Medical College of Wisconsin IncMilwaukee, WI · 2,115 clinicians
- Froedtert Andthe Medical College of Wisconsin Community Physicians IncWauwatosa, WI · 1,285 clinicians
Hospital affiliations
- Community Memorial HospitalMenomonee Falls, WI
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
- Froedtert South Inc.Kenosha, WI
- Holy Family MemorialManitowoc, WI
- St Josephs Community Hospital West BendWest Bend, 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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