Gretchen Eileen Winter, PH.D., D.O.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

20A12705 Issued in CA

Practice address

1100 Las Tablas Rd
Templeton, CA 93465-9704

Phone

(804) 434-4706

NPI assigned

Aug 16, 2011

Last updated

Jun 24, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hospitalist

Education

Western University of Health Sciences College of Dental Med, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Galen Inpatient Physicians PCGroup PAC ID 3678464633, 1,045 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Adventist Health Twin Cities Hospital, Templeton, CA, CCN 050633
• Adventist Health Sierra Vista Hospital, San Luis Obispo, CA, CCN 050506
• French Hospital Medical Center Hospital, San Luis Obispo, CA, CCN 050232

Merit-based Incentive Payment System (MIPS)

Final score

82.4 of 100Reported as group

Quality

65.6

Improvement activities

40

Cost

71.06

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Philosophy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gretchen.winter.p1@direct.bfmc.nextgenshare.com
• Direct secure messaging: gretchen.winter.p8@direct.bfmc.nextgenshare.com
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Galen Inpatient Physicians, PC

  • Hospitalist Physician
  • Manteca, CA
  • NPI 1689320459
  Medicare reassignment Care Compare group NPD
• First Choice Physician Partners

  dba Greater Modesto Medical Surgical Associates

  • Neurological Surgery Physician
  • Modesto, CA
  • NPI 1104183052
  Medicare reassignment NPD
• Hospital Medicine of California Inc

  • Hospitalist Physician
  • West Hills, CA
  • NPI 1770037236

  Internal Medicine

  Medicare reassignment NPD
• First Choice Physician Partners

  • Family Medicine Physician
  • Brea, CA
  • NPI 1417297847

  Internal Medicine

  NPD
• First Choice Physician Partners

  dba De La Pena Eye Clinic, A Medical Group

  • Ophthalmology Physician
  • El Monte, CA
  • NPI 1912732892
  NPD
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1205787686
  NPD
• Galen Inpatient Physicians, PC

  • Hospitalist Physician
  • Glendale, CA
  • NPI 1568137008
  NPD
• Bakersfield Family Medical Group Inc

  dba Bakersfield Family Medical Group

  • Multi-Specialty Clinic/Center
  • Bakersfield, CA
  • NPI 1013912641

  Internal Medicine

  NPD (past)
• Cogent Healthcare of California, PC

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1215956438
  NPD (past)
• Hospitalist Medicine Physicians of California, Inc

  • Internal Medicine Physician
  • Apple Valley, CA
  • NPI 1184663965
  NPD (past)
• Las Tablas Medical Group,Inc

  dba Las Tablas Medical Group

  • Family Medicine Physician
  • Paso Robles, CA
  • NPI 1205994977
  NPD (past)

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

• Dignity Community Care

  dba French Hospital Medical Center

  • General Acute Care Hospital
  • San Luis Obispo, CA
  • NPI 1881760452
  Care Compare affiliation
• Sierra Vista Hospital, Inc.

  dba Sierra Vista Regional Medical Center

  • General Acute Care Hospital
  • San Luis Obispo, CA
  • NPI 1639101116
  Care Compare affiliation
• Twin Cities Community Hospital, Inc.

  dba Twin Cities Community Hospital

  • General Acute Care Hospital
  • Templeton, CA
  • NPI 1396778197
  Care Compare affiliation

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

{
    "created_epoch": "1313452800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1558640953",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "159 EARTHWOOD LN",
            "city": "SAN LUIS OBISPO",
            "state": "CA",
            "postal_code": "934019108",
            "telephone_number": "818-593-9977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 LAS TABLAS RD",
            "city": "TEMPLETON",
            "state": "CA",
            "postal_code": "934659704",
            "telephone_number": "804-434-4706"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2120 Golden Hill Rd Ste 102",
            "address_purpose": "LOCATION",
            "city": "Paso Robles",
            "state": "CA",
            "postal_code": "934467048",
            "country_code": "US",
            "telephone_number": "805-434-2900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WINTER",
        "first_name": "GRETCHEN",
        "middle_name": "EILEEN",
        "name_prefix": "Dr.",
        "credential": "PH.D., D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-08-16",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "20A12705",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Harry C Wiese, M.D.
• Laura Willard, P.T.
• William F Sima MD Inc
• Daniel Lamar Willis, M.D.
• Ian Wilson
• Lori Witham, RDH
• Kristina Womack, RN
• Marlene Wood, RN
• Jennifer Lynn Woodward, PA-C
• Solana Wooldridge, N.P

• Internal Medicine Physician in Templeton, CA
• Providers in Templeton, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2026; 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.