Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Onsite Services of California

Organization Clinical Medical Laboratory · NPI 1053910273

Onsite Services of California is a Clinical Medical Laboratory in Colton, California. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

1040 S Mount Vernon Ave # G-276
Colton, CA 92324-4228
Phone: (562) 533-8348
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X

Record details

NPI number1053910273
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gerardo Quinones — Ceo · (909) 554-3386
Other names Onsite Phlebotomy Solutions; Onsite Phlebotomy Solutions
NPI enumeratedOctober 19, 2020
Last updated in NPPESApril 15, 2024
Certification dateApril 15, 2024
Mailing address595 N La Cadena Dr Ste G, Colton, CA 92324-2820

Other providers in Colton