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

Dr. Teodoro G Diaz III, DO

Individual provider Family Medicine Physician · NPI 1437190113

Dr. Teodoro G Diaz III, DO is a Family Medicine Physician in Ontario, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3550 E Philadelphia St Ste 150
Ontario, CA 91761-2962
Phone: (909) 773-0022
Fax: (909) 781-6013
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A8127 (CA)

Record details

NPI number1437190113
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 10, 2006
Last updated in NPPESNovember 11, 2015
Mailing address3550 E Philadelphia St, Suite 150, Ontario, CA 91761-2962

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