Rajan Regmi, MD
NPI 1447413570ActiveIndividual· Internal Medicine, Nephrology· Waukesha, WI
Internal Medicine, Nephrology (MD) with Nephrology Associates SC, practicing in Waukesha, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $234,161 for 1,538 claims, against $122,673 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 7 companies reporting payments in 2025, $414.45 in all, mostly food and beverage. Lists Oconomowoc Memorial Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1447413570 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 9, 2008 |
| Last updated in NPPES | Aug 11, 2026 |
| Certified by provider | Aug 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 56892-020 | WI |
| Internal Medicine | 207R00000X | 5689220 | WI |
| Hospitalist | 208M00000X | 56892-20 | WI |
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 - Nephrology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 519 |
|---|---|
| Services billed | 2,827 across 23 procedure codes |
| Paid by Medicare | $122,673 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,538 · 3,350 30-day fills |
|---|---|
| Patients | 325 |
| Total drug cost | $234,161 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine, Sleep Medicine |
| Telehealth | Offers telehealth |
Medical group
- Nephrology Associates SCWaukesha, WI · 8 clinicians
Hospital affiliations
- Oconomowoc Memorial HospitalOconomowoc, WI
- Watertown Memorial HospitalWatertown, WI
- Waukesha Memorial HospitalWaukesha, WI
Other facilities
- Davita Menomonee Falls DialysisDialysis facility · Menomonee Falls, WI
- Davita Spring City DialysisDialysis facility · Waukesha, WI
- Davita Waukesha DialysisDialysis facility · Waukesha, WI
- Rehabilitation Hospital of WisconsinInpatient rehabilitation facility · Waukesha, WI
Industry payments (Open Payments)
- 2025$414.45 · 10 payments from 7 companies
- 2024$207.37 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $126.00 | 1 |
| Amgen Inc. | $105.41 | 3 |
| Radius Health, Inc. | $92.86 | 1 |
| Ascendis Pharma Endocrinology Inc | $54.09 | 2 |
| Opko Pharmaceuticals, LLC | $18.88 | 1 |
What the 2025 payments were for
- Food and Beverage$392.56 · 8 payments
- Education$21.89 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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