Sethu Madhavan, MD
Sethu Madhavan, MD is a Nephrology Physician in Columbus, OH, registered under NPI 1003015850.
Getting there
Here is what surrounds this office in Columbus, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 856 ft away at 9th Avenue West Garage. The nearest transit stop is 298 ft away, served by Neil Ave & W 11th Ave. A pharmacy sits 0.36 mi from the entrance (Student Life Student Health Services Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Transit Neil Ave & W 10th Ave 63 ft ~1 min
Restaurant Adriatico's Pizza 81 ft ~1 min
1618 Neil Avenue, Columbus 43201
Mo-Th 11:00-01:30; Fr-Sa 11:00-02:30; Su 11:00-00:30
Restaurant Bruegger's Bagels 95 ft ~1 min
1630 Neil Avenue, Columbus 43201
Transit Neil Ave & W 10th Ave 135 ft ~1 min
Convenience Marketplace C-Store 180 ft ~1 min
Restaurant Marketplace on Neil 158 ft ~1 min
Coffee Hang Over Easy 211 ft ~1 min
1646 Neil Avenue, Columbus 43201
Mo-Fr 07:00-19:00; Sa 09:00-19:00; Su 09:00-15:00
Transit Neil Ave & W 11th Ave 298 ft ~2 min
Parking 11th Avenue Garage 503 ft ~2 min
229 West Eleventh Avenue, Columbus 43210
Parking 9th Avenue East Garage 613 ft ~3 min
345 West Ninth Avenue, Columbus 43210
Parking 9th Avenue West Garage 856 ft ~4 min
355 West Ninth Avenue, Columbus 43210
Convenience Champs Market 0.20 mi ~5 min
219 West Eighth Avenue, Columbus 43201
Coffee Berry Cafe 0.32 mi ~7 min
Mo-Fr 07:30-20:00; Sa 11:00-18:00; Su 11:00-20:00
Coffee Crane Cafe 0.36 mi ~8 min
Mo-Fr 07:45-17:00
Pharmacy Student Life Student Health Services Pharmacy 0.36 mi ~8 min
Convenience United Dairy Farmers 0.42 mi ~9 min
Hotel Harrison House 0.50 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 35.122245 | OH | Nephrology Physician primary |
This provider holds licence 35.122245 issued in OH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nephrology
- PAC ID
- 4981838810
- Enrollment ID
- I20131009000844
Medicare enrolment is recorded as approved under the provider type Practitioner - Nephrology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003015850 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 12, 2007 |
| Last updated | Dec 18, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
300 W 10TH AVE Columbus, OH 43210 (614) 293-3387 Fax (614) 366-0073 |
| Mailing address |
700 ACKERMAN RD STE 2120 Columbus, OH 43202 |
| Other identifiers |
0091357
· Medicaid (OH) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 1 | 5 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 1 | 1 | 8 | 1 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.