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

Dr. Richard Allen Guerrero Jr., MD

Individual provider Surgery Physician · NPI 1891715835

Dr. Richard Allen Guerrero Jr., MD is a General Surgery in Fountain Valley, California. Graduated from University of Southern California Keck School of Medicine in 2000, 26 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
26
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

11100 Warner Ave Ste 266
Fountain Valley, CA 92708-7512
Phone: (714) 617-4733
Fax: (714) 617-4748
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A79327 (CA)

Record details

NPI number1891715835
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 20, 2006
Last updated in NPPESJuly 31, 2026
Certification dateJuly 31, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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