Stephanie Ann Riggen, M.D.
NPI 1477726578ActiveIndividual· Internal Medicine, Nephrology· Indianapolis, IN
Internal Medicine, Nephrology (M.D.) with Indiana Nephrology and Internal Medicine PC, practicing in Indianapolis, Indiana. 357 Medicare patients in 2024, $118,947 paid; nearly all of their 1,328 Part D prescriptions were generic (94%). Nxstage Medical, Inc. reported $124.60 in payments in 2025, mostly food and beverage. Lists Ascension St Vincent Carmel and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1477726578 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 9, 2008 |
| Last updated in NPPES | Jan 8, 2026 |
| Certified by provider | Jan 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 01067289A | 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 - Nephrology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 357 |
|---|---|
| Services billed | 1,359 across 21 procedure codes |
| Paid by Medicare | $118,947 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,328 · 2,824 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $165,468 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Indiana Nephrology and Internal Medicine PCKokomo, IN · 36 clinicians
Hospital affiliations
- Ascension St Vincent CarmelCarmel, IN
- Ascension St Vincent HospitalIndianapolis, IN
- Hendricks Regional HealthDanville, IN
- St Vincent Heart CenterCarmel, IN
- Witham Health ServicesLebanon, IN
Other facilities
- Fmc - Hendricks CountyDialysis facility · Danville, IN
- Fmc - Indianapolis-NorthDialysis facility · Indianapolis, IN
- Fmc - Indianapolis-WestDialysis facility · Indianapolis, IN
- Fmc - Liberty Dialysis - Lebanon, LLCDialysis facility · Lebanon, IN
Industry payments (Open Payments)
- 2025$124.60 · 1 payment from 1 company
- 2024$3.08 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Nxstage Medical, Inc. | $124.60 | 1 |
What the 2025 payments were for
- Food and Beverage$124.60 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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