Joanne Frances Mahoney
NPI 1689691628ActiveIndividual· Internal Medicine· Key Largo, FL
Internal Medicine in Key Largo, Florida, trained at University of Florida College of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $419,554 for 4,704 claims, against $110,619 paid for services in 2024. Merck Sharp & Dohme LLC reported $20.83 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1689691628 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jul 16, 2006 |
| Last updated in NPPES | Jul 22, 2023 |
| Certified by provider | Jul 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | ME47004 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 319 |
|---|---|
| Services billed | 2,236 across 34 procedure codes |
| Paid by Medicare | $110,619 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,704 · 9,936 30-day fills |
|---|---|
| Patients | 335 |
| Total drug cost | $419,554 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Florida College of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Fishermen's Community HospitalMarathon, FL
- Homestead HospitalHomestead, FL
- Mariners HospitalTavernier, FL
Other facilities
- Island Home CareHome health agency · Key West, FL
- The Roads Home Health Care IncHome health agency · Miami, FL
- Amedisys HospiceHospice · Hialeah, FL
- GentivaHospice · Miami, FL
- Oasis at the Conch Republic Nursing and RehabNursing home · Key West, FL
- Oasis at the Keys Nursing and RehabNursing home · Tavernier, FL
Industry payments (Open Payments)
- 2025$20.83 · 1 payment from 1 company
- 2024$29.45 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $20.83 | 1 |
What the 2025 payments were for
- Food and Beverage$20.83 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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