Isidora L. Nantes, M.D.
NPI 1609939594ActiveIndividual· Family Medicine· Merrillville, IN
Family Medicine (M.D.) in Merrillville, Indiana, licensed in IN, with an NPI issued in December 2006. Their prescriptions cost Medicare Part D more than their services did: $640,089 for 9,243 claims, against $14,723 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 17 companies reporting payments in 2025, $658.01 in all, mostly food and beverage. Lists Franciscan Health Crown Point and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1609939594 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 19, 2006 |
| Last updated in NPPES | Jan 24, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 01044666A | IN |
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 - Family Practice (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 109 |
|---|---|
| Services billed | 348 across 34 procedure codes |
| Paid by Medicare | $14,723 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,243 · 22,461 30-day fills |
|---|---|
| Patients | 718 |
| Total drug cost | $640,089 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Family Practice |
Hospital affiliations
- Franciscan Health Crown PointCrown Point, IN
- Methodist Hospitals IncGary, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$658.01 · 31 payments from 17 companies
- 2024$1,069 · 48 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $107.17 | 5 |
| Amgen Inc. | $84.96 | 4 |
| Xeris Pharmaceuticals, Inc. | $48.35 | 2 |
| Novo Nordisk Inc | $45.51 | 2 |
| Abiomed | $44.35 | 1 |
What the 2025 payments were for
- Food and Beverage$658.01 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 family medicine physicians in Merrillville · All family medicine physicians in Indiana