OrganizationActive
Onsite Services of California
NPI 1053910273 · Clinical Medical Laboratory · Colton, CA
Onsite Services of California is a Clinical Medical Laboratory organization in Colton, CA (NPI 1053910273).
Provider details
- NPI number
- 1053910273
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Gerardo Quinones, Ceo(909) 554-3386
Specialties & taxonomies
Laboratories
Profile Score
Established profile(63/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
1040 S Mount Vernon Ave # G-276
Colton, CA 92324-4228
Phone: (562) 533-8348
Street-level locationGet directions
Mailing address
595 N La Cadena Dr Ste G
Colton, CA 92324-2820
Other names (DBA / former)
- Doing business as
- Onsite Phlebotomy Solutions
- Doing business as
- Onsite Phlebotomy Solutions
Registry dates
- Enumerated
- 2020-10-19
- Last updated
- 2024-04-15
- Certified
- 2024-04-15
Frequently asked questions
- What is Onsite Services of California's NPI number?
- Onsite Services of California's National Provider Identifier (NPI) is 1053910273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Onsite Services of California?
- Onsite Services of California is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Onsite Services of California located?
- Onsite Services of California's practice location on file with NPPES is 1040 S Mount Vernon Ave # G-276, Colton, CA 92324-4228.
- What is Onsite Services of California's phone number?
- The practice phone number listed in the NPPES registry for Onsite Services of California is (562) 533-8348.
- Who is the authorized official for Onsite Services of California?
- The authorized official listed on Onsite Services of California's NPPES record is Gerardo Quinones, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Onsite Services of California's NPI active?
- Yes — Onsite Services of California's NPI (1053910273) is active in the NPPES registry as of the last update on 2024-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.