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

Thomas M. Guerrero, MD, PHD

Individual provider Radiation Oncology Physician · NPI 1932281334

Thomas M. Guerrero, MD, PHD is a Radiation Oncology in Oroville, California. Graduated from University of California, Geffen School of Medicine in 1997, 29 years ago. Practices with Paragon Chico Medical Group Inc, a 10-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California, Michigan and Texas.

Years since qualifying
29
Trained at
University of California, Geffen School of Medicine
Licensed in
CA, MI, TX
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

2809 Olive Hwy Ste 110
Oroville, CA 95966-6132
Phone: (530) 538-5600
Show map & directions

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

Additional practice locations (1)

  • 1700 Esplanade, Chico, CA 95926-3315 — (530) 691-5920

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence A66756 (CA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence L5350 (TX)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 4301106275 (MI)

Record details

NPI number1932281334
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedOctober 19, 2006
Last updated in NPPESJuly 22, 2025
Certification dateJuly 22, 2025

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Paragon Chico Medical Group Inc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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