ONE STOP MULTI-SPECIALTY MEDICAL GROUP, INC.
ONE STOP MULTI-SPECIALTY MEDICAL GROUP, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003145764, based in Downey, CA. It is classified under Specialist.
Getting there
Here is what surrounds this office in Downey, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.47 mi away at Lakewood Boulevard Park And Ride. The nearest transit stop is 741 ft away, served by Brookshire & Imperial.
Getting here and what is nearby
Parking 77 ft ~1 min
Transit Imperial & Barlin 435 ft ~2 min
Transit Brookshire & Imperial 534 ft ~3 min
Transit Brookshire & Imperial 741 ft ~3 min
Parking 964 ft ~4 min
Restaurant Chick-fil-A 0.25 mi ~5 min
8900 Imperial Highway, Downey 90242
Mo-Fr 06:00-24:00; Sa 06:00-23:45; Su off
Gas station Mobil 0.29 mi ~6 min
Gas station Arco 0.43 mi ~9 min
Hotel Studio Inn 0.43 mi ~9 min
Parking Lakewood Boulevard Park And Ride 0.47 mi ~10 min
12747 Lakewood Blvd (Sr 19) @ I-105 / Lakewood Blvd Ic, Downey 90242
Restaurant Pizza Hut 0.47 mi ~10 min
Restaurant Carl's Jr. 0.49 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
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 Specialist covers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. NUCC Health Care Provider Taxonomy, code 174400000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003145764 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 9, 2009 |
| Last updated | Dec 9, 2009 |
| Status | Active |
| Practice address |
8607 IMPERIAL HWY STE 109 Downey, CA 90242 (909) 483-3530 |
| Mailing address |
11328 KENYON WAY STE B Rancho Cucamonga, CA 91701 |
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 | 1 | 4 | 5 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 1 | 7 | 3 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.