Thomas M. Guerrero, MD, PHD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

A66756 Issued in CA

Practice address

2809 Olive Hwy Ste 110
Oroville, CA 95966-6132

Phone

(530) 538-5600

NPI assigned

Oct 19, 2006

Last updated

Jul 22, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Radiation Oncology

Education

University of California, Geffen School of Medicine, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Paragon Chico Medical Group IncGroup PAC ID 2668807785, 10 clinicians

Orohealth Corporation a Non Profit Healthcare SystemGroup PAC ID 4082501192, 126 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Oroville Hospital Hospital, Oroville, CA, CCN 050030
• Enloe Health Hospital, Chico, CA, CCN 050039
• University of California Davis Medical Center Hospital, Sacramento, CA, CCN 050599

Merit-based Incentive Payment System (MIPS)

Final score

77.23 of 100Reported as group

Quality

36.36

Promoting interoperability

100

Improvement activities

40

Cost

71.06

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Orohealth Corporation a Non Profit Healthcare System

  dba Orohealth Professional Group

  • Family Medicine Physician
  • Oroville, CA
  • NPI 1013933167
  Medicare reassignment Care Compare group NPD
• Paragon Chico Medical Group, Inc

  • Radiation Oncology Physician
  • Chico, CA
  • NPI 1528527181
  Medicare reassignment Care Compare group NPD
• Radiation Oncology Network of Southern California

  • Radiation Oncology Clinic/Center
  • El Centro, CA
  • NPI 1336752039
  NPD
• Physicians Referral Service

  • Multi-Specialty Clinic/Center
  • Houston, TX
  • NPI 1073574810
  NPD
• Presbyterian Healthcare Services

  dba Presbyterian Hospital

  • General Acute Care Hospital
  • Albuquerque, NM
  • NPI 1215913470
  NPD (past)
• Ut MD Anderson Cancer Center

  • Clinical Medical Laboratory
  • Houston, TX
  • NPI 1952521189
  NPD (past)
• William Beaumont Hospital

  dba Beaumont Hospital, Troy

  • General Acute Care Hospital
  • Troy, MI
  • NPI 1306825997
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Enloe Medical Center

  • General Acute Care Hospital
  • Chico, CA
  • NPI 1417901091
  Care Compare affiliation
• Oroville Hospital

  • General Acute Care Hospital
  • Oroville, CA
  • NPI 1871606269
  Care Compare affiliation
• Regents of the University of California

  dba University of California Davis Medical Center

  • General Acute Care Hospital
  • Sacramento, CA
  • NPI 1710918545
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1161216000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753142400000",
    "number": "1932281334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "69 COUNTRY VIEW LN",
            "city": "OROVILLE",
            "state": "CA",
            "postal_code": "959669409",
            "telephone_number": "832-496-1667",
            "fax_number": "530-691-5922"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2809 OLIVE HWY STE 110",
            "city": "OROVILLE",
            "state": "CA",
            "postal_code": "959666132",
            "telephone_number": "530-538-5600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1700 Esplanade",
            "address_purpose": "LOCATION",
            "city": "Chico",
            "state": "CA",
            "postal_code": "959263315",
            "country_code": "US",
            "telephone_number": "530-691-5920",
            "fax_number": "530-691-5922",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GUERRERO",
        "first_name": "THOMAS",
        "middle_name": "M.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-19",
        "last_updated": "2025-07-22",
        "certification_date": "2025-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "TX",
            "license": "L5350",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MI",
            "license": "4301106275",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "A66756",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1932281334",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "152172601",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Chester C Granka, DC
• Marlene Grant, PH.D.
• Sherilyn Danette Greenlaw, M.A., MFTI
• Matthew Arnold Grove, DC
• Alma Delia Guerrero Villarreal
• Jennifer Lee Gustafson, NP
• Marisela Gutierrez Soria
• Rigoberto Gutierrez
• Yvette Elaina Gwin, CMT
• Ha Lay Le Tonthat Professional Corporation

• Radiation Oncology Physician in Oroville, CA
• Providers in Oroville, CA by specialty
• Radiation Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.