Thomas Guerrero, MD, PHD
NPI 1932281334 · Radiation Oncology Physician · Oroville, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Guerrero, MD, PHD is a Radiation Oncology Physician provider in Oroville, CA (NPI 1932281334).
Provider details
- NPI number
- 1932281334
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- L5350 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,823 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 463 | $45 |
| Calculation of Radiation Therapy Dose77300 | 298 | $33 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 267 | $191 |
| Design and Construction of Complex Radiation Treatment Device77334 | 177 | $61 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 144 | $65 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 69 | $179 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 25 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 20 | 13 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 20 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1700 EsplanadeChico, CA 95926-3315Phone: (530) 691-5920Fax: (530) 691-5922
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2025-07-22
- Certified
- 2025-07-22
Frequently asked questions
- What is Thomas Guerrero's NPI number?
- Thomas Guerrero's National Provider Identifier (NPI) is 1932281334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Guerrero's specialty?
- Thomas Guerrero is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Guerrero located?
- Thomas Guerrero's practice location on file with NPPES is 2809 Olive Hwy Ste 110, Oroville, CA 95966-6132.
- What is Thomas Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Thomas Guerrero is (530) 538-5600.
- Does Thomas Guerrero accept Medicare?
- Thomas Guerrero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Guerrero's NPI active?
- Yes — Thomas Guerrero's NPI (1932281334) is active in the NPPES registry as of the last update on 2025-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.