McKenzie Marie Tolan, MD

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

201596 Issued in CA

Practice address

3270 Villa LN
Napa, CA 94558-3085

Phone

(072) 513-6087

NPI assigned

Apr 17, 2020

Sex

Female

Sole proprietor

Yes

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Otolaryngology

Education

University of Minnesota Medical School, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Queen of the Valley Medical Center Hospital, Napa, CA, CCN 050009
• Sonoma Valley Hospital Hospital, Sonoma, CA, CCN 050090
• Providence Santa Rosa Memorial Hospital Hospital, Santa Rosa, CA, CCN 050174
• Adventist Health St Helena Hospital, Saint Helena, CA, CCN 050013

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/IBDGCA
• Direct secure messaging: mckenzie.tolan.1@25176.direct.athenahealth.com

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

• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • Walnut Creek, CA
  • NPI 1043616600

  Single Specialty

  NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941

  Single Specialty

  NPD (past)
• Bass Medical Group

  • Pain Medicine Physician
  • Visalia, CA
  • NPI 1326409343
  NPD (past)

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

• Sonoma Valley Health Care District

  • General Acute Care Hospital
  • Sonoma, CA
  • NPI 1710063870
  Care Compare affiliation
• St. Helena Hospital

  • General Acute Care Hospital
  • Saint Helena, CA
  • NPI 1720078082
  Care Compare affiliation
• St. Joseph Health Northern California, LLC

  • General Acute Care Hospital
  • Napa, CA
  • NPI 1013080084
  Care Compare affiliation
• St. Joseph Health Northern California, LLC

  • General Acute Care Hospital
  • Santa Rosa, CA
  • NPI 1134152549
  Care Compare affiliation
• St. Joseph Health Northern California, LLC

  • General Acute Care Hospital
  • Napa, CA
  • NPI 1235218785
  Care Compare affiliation

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

{
    "created_epoch": "1587081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751414400000",
    "number": "1750901906",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "420 DELAWARE ST SE",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554550341",
            "telephone_number": "612-625-7692"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3270 VILLA LN",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945583085",
            "telephone_number": "072-513-6087"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOLAN",
        "first_name": "MCKENZIE",
        "middle_name": "MARIE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-04-17",
        "last_updated": "2025-07-02",
        "certification_date": "2025-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "201596",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Daniel Charles Tobin
• Vanessa Todd
• Zachariah Todd
• Lisa Toftely
• Tumendelger Togmid
• Medardo Tomaquin
• Ann Marie Tommaney
• John Eric Tonningsen
• Yessica Ivone Toral
• Mary Jacqueline Torrance

• Otolaryngology Physician in Napa, CA
• Providers in Napa, CA by specialty
• Otolaryngology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 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.