Samuel Kefer, MD
Samuel Kefer, MD is an Emergency Medicine Physician in Madison, WI, registered under NPI 1003496936. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Madison, based on OpenStreetMap data collected Oct 1, 2026. Parking is available about 0.42 mi away. The nearest transit stop is 465 ft away, served by University & Tomahawk (SB). If you arrive early, there is a coffee shop 819 ft away.
Getting here and what is nearby
Transit University & N Whitney 175 ft ~1 min
Coffee EVP Coffee 191 ft ~1 min
741 University Row, Madison 53705
Mo-Fr 06:00-17:00; Sa-Su 07:00-12:00
Transit N Whitney & University (SB) 332 ft ~2 min
Parking 409 ft ~2 min
Parking 435 ft ~2 min
Transit University & Tomahawk (SB) 465 ft ~2 min
Restaurant Glass Nickel Pizza 554 ft ~3 min
Mo-Su 10:00-22:00
Coffee Moka 819 ft ~4 min
Convenience Inter Market - Продукты Подарки 0.22 mi ~5 min
5317 Old Middleton Road, Madison 53705
Restaurant Taigu Noodles 0.25 mi ~5 min
Parking 0.42 mi ~9 min
4846 Sheboygan Avenue, Madison 53705
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 |
|---|---|---|
| 83039-20 | WI | Emergency Medicine Physician primary |
This provider holds licence 83039-20 issued in WI. 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 - Emergency Medicine
- PAC ID
- 7315327061
- Enrollment ID
- I20250801002467
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. 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 Emergency Medicine covers
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury. NUCC Health Care Provider Taxonomy, code 207P00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207P00000X | Emergency Medicine Physician | 83039-20 | WI | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003496936 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 13, 2021 |
| Last updated | Feb 22, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
749 UNIVERSITY ROW STE 200 Madison, WI 53705 (608) 263-6400 |
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 | 4 | 9 | 6 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 9 | 3 | 9 | 6 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.