Marjorie A. Dimaggio, MD
NPI 1164476388ActiveIndividual· Internal Medicine, Geriatric Medicine· Madison, WI
Internal Medicine, Geriatric Medicine (MD) in Madison, Wisconsin, licensed in WI, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $73,652 for 399 claims, against $7,874 paid for services in 2024.
Overview
| NPI | 1164476388 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 20, 2006 |
| Last updated in NPPES | May 18, 2022 |
| Certified by provider | May 18, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 33717 | WI |
| Internal Medicine | 207R00000X | 33717-020 | WI |
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 - Geriatric Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 68 across 3 procedure codes |
| Paid by Medicare | $7,874 |
Part D prescriptions in 2024
| Prescriptions (claims) | 399 · 401 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $73,652 |
| Generic share | 81% of claims |
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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