OrganizationActive
One Stop Multi-Specialty Medical Group, Inc.
NPI 1003145764 · Specialist · Downey, CA
One Stop Multi-Specialty Medical Group, Inc. is a Specialist organization in Downey, CA (NPI 1003145764).
Provider details
- NPI number
- 1003145764
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- John Larson, President(909) 483-3530
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
8607 Imperial Hwy Ste 109
Downey, CA 90242-3947
Phone: (909) 483-3530
Street-level locationGet directions
Mailing address
11328 Kenyon Way Ste B
Rancho Cucamonga, CA 91701-9291
Registry dates
- Enumerated
- 2009-12-09
- Last updated
- 2009-12-09
Frequently asked questions
- What is One Stop Multi-Specialty Medical Group, Inc.'s NPI number?
- One Stop Multi-Specialty Medical Group, Inc.'s National Provider Identifier (NPI) is 1003145764, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is One Stop Multi-Specialty Medical Group, Inc.?
- One Stop Multi-Specialty Medical Group, Inc. is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is One Stop Multi-Specialty Medical Group, Inc. located?
- One Stop Multi-Specialty Medical Group, Inc.'s practice location on file with NPPES is 8607 Imperial Hwy Ste 109, Downey, CA 90242-3947.
- What is One Stop Multi-Specialty Medical Group, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for One Stop Multi-Specialty Medical Group, Inc. is (909) 483-3530.
- Who is the authorized official for One Stop Multi-Specialty Medical Group, Inc.?
- The authorized official listed on One Stop Multi-Specialty Medical Group, Inc.'s NPPES record is John Larson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is One Stop Multi-Specialty Medical Group, Inc.'s NPI active?
- Yes — One Stop Multi-Specialty Medical Group, Inc.'s NPI (1003145764) is active in the NPPES registry as of the last update on 2009-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.