Sandra L. Gadson, MD
NPI 1841297348ActiveIndividual· Internal Medicine, Nephrology· Merrillville, IN
Internal Medicine, Nephrology (MD) in Merrillville, Indiana, licensed in IN and IL, with an NPI issued in June 2005. Their prescriptions cost Medicare Part D more than their services did: $88,017 for 250 claims, against $32,366 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $476.27 in all, mostly food and beverage.
Overview
| NPI | 1841297348 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 30, 2005 |
| Last updated in NPPES | May 31, 2022 |
| Certified by provider | May 31, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 10129625A | IN |
| Internal Medicine, Nephrology | 207RN0300X | 036058441 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 428 across 15 procedure codes |
| Paid by Medicare | $32,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 250 · 511 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $88,017 |
| Generic share | 76% of claims |
Industry payments (Open Payments)
- 2025$476.27 · 19 payments from 10 companies
- 2024$447.18 · 21 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $136.62 | 3 |
| Amgen Inc. | $78.04 | 5 |
| Fresenius USA Marketing, Inc. | $57.64 | 3 |
| Ani Pharmaceuticals, Inc. | $41.48 | 2 |
| Otsuka America Pharmaceutical, Inc. | $33.98 | 1 |
What the 2025 payments were for
- Food and Beverage$476.27 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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