John Madsen
John Madsen is a provider specialising in Student in an Organized Health Care Education/Training Program in Sacramento, CA, registered under NPI 1003518093.
Getting there
Here is what surrounds this office in Sacramento, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.45 mi away at Parking Structure 3. There is EV charging 0.47 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.40 mi away, served by Stockton + 2nd Ave. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Parking Parking Structure 2 343 ft ~2 min
Parking Parking Structure 4 555 ft ~3 min
2249 48th St, Sacramento 95817
Convenience Cottage Mart 725 ft ~3 min
2130 51st Street, Sacramento 95817
Transit Y St & 45th St 0.25 mi ~5 min
Transit 45th St & Y St 0.27 mi ~6 min
Hotel Courtyard Sacramento Midtown 0.32 mi ~7 min
Transit Stockton + 2nd Ave 0.40 mi ~8 min
Hotel De Ville Motel 0.44 mi ~9 min
2756 Stockton Boulevard, Sacramento 95817
Parking Parking Structure 3 0.45 mi ~9 min
4251 X Street, Sacramento 95817
Coffee Fair Grounds 0.46 mi ~10 min
4603 Broadway
EV charging Tesla Supercharger 0.47 mi ~10 min
Restaurant Meetu Japanese Cuisine 0.47 mi ~10 min
4605 Broadway
Hotel Hotel Med Park, Ascend Hotel Collection 0.49 mi ~10 min
Restaurant Jack in the Box 0.49 mi ~10 min
4601 Broadway;Stockton Boulevard, Sacramento 95817
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003518093 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 21, 2023 |
| Last updated | Jul 7, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
4860 Y ST STE 3100 Sacramento, CA 95817 (916) 734-5739 |
| Mailing address |
31700 TEMECULA PKWY STE 2 Temecula, CA 92592 |
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 | 5 | 1 | 8 | 0 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 7 | 0 | 9 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.