Chakravarthi Raghavan Ramaswamy, M.D.
NPI 1609884873ActiveIndividual· Internal Medicine, Nephrology· Grove City, OH
Internal Medicine, Nephrology (M.D.) with Columbus Nephrology, Inc., practicing in Grove City, Ohio. Their prescriptions cost Medicare Part D more than their services did: $150,747 for 1,339 claims, against $80,862 paid for services in 2024. Novo Nordisk Inc was the largest of 8 companies reporting payments in 2025, $456.78 in all, mostly food and beverage. Lists Diley Ridge Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1609884873 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Mar 12, 2020 |
| Certified by provider | Mar 12, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 35.078066 | OH |
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 (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 179 |
|---|---|
| Services billed | 857 across 14 procedure codes |
| Paid by Medicare | $80,862 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,339 · 3,117 30-day fills |
|---|---|
| Patients | 234 |
| Total drug cost | $150,747 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Columbus Nephrology, Inc.Grove City, OH · 12 clinicians
Hospital affiliations
- Diley Ridge Medical CenterCanal Winchester, OH
- Mount Carmel East & WestColumbus, OH
- Mount Carmel St Ann'sWesterville, OH
- Ohio State University State Health SystemColumbus, OH
Other facilities
- Fmc - Mt. Carmel EastDialysis facility · Columbus, OH
Industry payments (Open Payments)
- 2025$456.78 · 17 payments from 8 companies
- 2024$554.28 · 27 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $153.83 | 2 |
| Amgen Inc. | $147.54 | 3 |
| Becton, Dickinson and Company | $60.85 | 1 |
| Akebia Therapeutics Inc | $24.17 | 1 |
| Otsuka America Pharmaceutical, Inc. | $21.00 | 1 |
What the 2025 payments were for
- Food and Beverage$447.70 · 10 payments
- Education$9.08 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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