Marcy L. McAdoo, M.D.
NPI 1164434023ActiveIndividual· Internal Medicine· Brookfield, WI
Internal Medicine (M.D.) in Brookfield, Wisconsin, trained at Louisiana State University School of Medicine in New Orleans (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $523,597 for 7,477 claims, against $40,550 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 11 companies reporting payments in 2025, $621.37 in all, mostly food and beverage.
Overview
| NPI | 1164434023 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 12, 2006 |
| Last updated in NPPES | Jun 21, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 29736 | 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 | 238 |
|---|---|
| Services billed | 600 across 38 procedure codes |
| Paid by Medicare | $40,550 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,477 · 16,954 30-day fills |
|---|---|
| Patients | 805 |
| Total drug cost | $523,597 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
- Waukesha Memorial HospitalWaukesha, WI
Other facilities
- Ascension at HomeHome health agency · Milwaukee, WI
Industry payments (Open Payments)
- 2025$621.37 · 32 payments from 11 companies
- 2024$86.72 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $144.46 | 9 |
| Amgen Inc. | $99.39 | 4 |
| Pfizer Inc. | $83.46 | 4 |
| Astrazeneca Pharmaceuticals LP | $54.73 | 2 |
| Novo Nordisk Inc | $53.40 | 3 |
What the 2025 payments were for
- Food and Beverage$621.37 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 internal medicine physicians in Brookfield · All internal medicine physicians in Wisconsin