Karth Antony, MD
NPI 1790756104ActiveIndividual· Internal Medicine, Nephrology· Saint Louis, MO
Internal Medicine, Nephrology (MD) with St Louis Nephrology Associates LLC, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $307,843 for 1,029 claims, against $94,839 paid for services in 2024. Amgen Inc. reported $23.89 in payments in 2025, mostly food and beverage. Lists Mercy Hospital South and 1 other hospital as hospital affiliations.
Overview
| NPI | 1790756104 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 1, 2006 |
| Last updated in NPPES | Nov 16, 2025 |
| Certified by provider | Nov 16, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2001004843 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 229 |
|---|---|
| Services billed | 882 across 14 procedure codes |
| Paid by Medicare | $94,839 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,029 · 2,029 30-day fills |
|---|---|
| Patients | 149 |
| Total drug cost | $307,843 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- St Louis Nephrology Associates LLCSaint Louis, MO · 2 clinicians
Hospital affiliations
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
Other facilities
- Fmc - ArnoldDialysis facility · Arnold, MO
Industry payments (Open Payments)
- 2025$23.89 · 1 payment from 1 company
- 2024$137.34 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $23.89 | 1 |
What the 2025 payments were for
- Food and Beverage$23.89 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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