Nathan R. Tiwari, MD
NPI 1609185263ActiveIndividual· Family Medicine· Grand Rapids, MN
Family Medicine (MD) with Dirne Health Centers Inc and 1 other group, practicing in Grand Rapids, Minnesota. 55 Medicare patients in 2024, $7,250 paid; nearly all of their 72 Part D prescriptions were generic (90%). Lists Keokuk County Health Center as a hospital affiliation.
Overview
| NPI | 1609185263 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 30, 2010 |
| Last updated in NPPES | Feb 26, 2026 |
| Certified by provider | Feb 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 6871697 | ID |
| Emergency Medicine | 207P00000X | MD-44379 | IA |
| Family Medicine | 207Q00000X | PERMIT22870 | MN |
| Student in an Organized Health Care Education/Training Program | 390200000X | PERMIT22870 | MN |
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 (IA); Practitioner - Family Practice (ID) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 96 across 19 procedure codes |
| Paid by Medicare | $7,250 |
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 81 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $1,551 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- Dirne Health Centers IncCoeur D Alene, ID · 81 clinicians
- Keokuk County Health CenterSigourney, IA · 23 clinicians
Hospital affiliation
- Keokuk County Health CenterSigourney, IA
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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All 29 family medicine physicians in Grand Rapids · All family medicine physicians in Minnesota