John Keegan
NPI 1053842385ActiveIndividual· Internal Medicine, Infectious Disease· Milwaukee, WI
Internal Medicine, Infectious Disease in Milwaukee, Wisconsin, trained at Medical College of Wisconsin (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $2,491,105 for 1,701 claims, against $12,276 paid for services in 2024. Gilead Sciences, Inc. was the largest of 2 companies reporting payments in 2025, $56.23 in all, mostly food and beverage.
Overview
| NPI | 1053842385 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 27, 2017 |
| Last updated in NPPES | Jun 22, 2022 |
| Certified by provider | Jun 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 71891 | WI |
| Internal Medicine | 207R00000X | 71891 | 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 - Infectious Disease (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 181 across 22 procedure codes |
| Paid by Medicare | $12,276 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,701 · 1,903 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $2,491,105 |
| Generic share | 55% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Infectious Disease |
| Telehealth | Offers telehealth |
Medical groups
- The Medical College of Wisconsin IncMilwaukee, WI · 2,115 clinicians
- Vivent Health IncKenosha, WI · 53 clinicians
Hospital affiliation
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
Industry payments (Open Payments)
- 2025$56.23 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $37.40 | 2 |
| Abbvie Inc. | $18.83 | 1 |
What the 2025 payments were for
- Food and Beverage$56.23 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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