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

Ruben Ruiz M D a Medical Corporation

Organization Specialist · NPI 1043241821

Ruben Ruiz M D a Medical Corporation is a Specialist in Ontario, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
3

Practice location Address checks out

403 W F St
Ontario, CA 91762-3207
Phone: (909) 988-3288
Fax: (909) 988-6767
Show map & directions

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

Specialties & licences

Primary Care Clinic/Center (primary) Taxonomy 261QP2300X
Specialist Taxonomy 174400000X · Licence G52245 (CA)
Pediatrics Physician Taxonomy 208000000X

Record details

NPI number1043241821
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Ruben Ruiz — Ceo/President · (562) 201-2508
Other names Ontario Clinica Medica Familiar; Ontario Clinica Medica Familiar
NPI enumeratedJuly 6, 2006
Last updated in NPPESMay 25, 2023
Certification dateMay 25, 2023
Mailing address403 W F St, Ontario, CA 91762-3207

Other providers in Ontario