Nathaniel Robert Stewart, MD
NPI 1063773422ActiveIndividual· Family Medicine· Granger, IN
Family Medicine (MD) in Granger, Indiana, trained at Indiana University School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,410,960 for 13,851 claims, against $134,202 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $34.59 in all, mostly education.
Overview
| NPI | 1063773422 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 1, 2012 |
| Last updated in NPPES | Jun 25, 2024 |
| Certified by provider | Jun 25, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 01073332A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 513 |
|---|---|
| Services billed | 2,825 across 66 procedure codes |
| Paid by Medicare | $134,202 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,851 · 31,953 30-day fills |
|---|---|
| Patients | 898 |
| Total drug cost | $1,410,960 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Emergency Medicine, Family Practice |
Medical group
- Saint Joseph Regional Medical Center IncMishawaka, IN · 138 clinicians
Hospital affiliations
- Elkhart General HospitalElkhart, IN
- Memorial Hospital of South BendSouth Bend, IN
- Saint Joseph Regional Medical CenterMishawaka, IN
Other facilities
- Elara CaringHome health agency · Kokomo, IN
- Elara CaringHome health agency · Niles, MI
- Saint Joseph Vna Home CareHome health agency · South Bend, IN
- Holy Cross Village at Notre Dame IncNursing home · Notre Dame, IN
Industry payments (Open Payments)
- 2025$34.59 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $18.85 | 1 |
| Exact Sciences Corporation | $15.74 | 1 |
What the 2025 payments were for
- Education$18.85 · 1 payment
- Food and Beverage$15.74 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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