Gillian McChesney, PHYSICAL THERAPIST

Primary specialty

Orthopedic Physical TherapistTaxonomy code 2251X0800X

License

PT17248 Issued in CA

Practice address

85 Sierra Park Rd
Mammoth Lakes, CA 93546-0660

Phone

(760) 934-7302

Fax

(760) 934-1779

NPI assigned

Feb 13, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 11

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Specialty

Physical Therapist in Private Practice

Education

Other, 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southern Mono Health Care DistrictGroup PAC ID 9830002401, 94 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Southern Mono Health Care District

  dba Mammoth Hospital

  • Critical Access Hospital Clinic/Center
  • Mammoth Lakes, CA
  • NPI 1962444059
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1171324800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1093857963",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 660",
            "address_2": "85 SIERRA PARK RD",
            "city": "MAMMOTH LAKES",
            "state": "CA",
            "postal_code": "935460660",
            "telephone_number": "760-934-7302",
            "fax_number": "760-934-1779"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "85 SIERRA PARK RD",
            "city": "MAMMOTH LAKES",
            "state": "CA",
            "postal_code": "935460660",
            "telephone_number": "760-934-7302",
            "fax_number": "760-934-1779"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCCHESNEY",
        "first_name": "GILLIAN",
        "credential": "PHYSICAL THERAPIST",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-13",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251C2600X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Cardiopulmonary",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251E1200X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Ergonomics",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251E1300X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Electrophysiology, Clinical",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251G0304X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Geriatrics",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251H1200X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Hand",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251H1300X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Human Factors",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251N0400X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Neurology",
            "state": "CA",
            "license": "PT17248",
            "primary": false
        },
        {
            "code": "2251P0200X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Pediatrics",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251S0007X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Sports",
            "state": "CA",
            "license": "PT17468",
            "primary": false
        },
        {
            "code": "2251X0800X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Orthopedic",
            "state": "CA",
            "license": "PT17248",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mammoth Physical Therapy
• Mammoth Physical Therapy, Inc. (Mammoth Physio)
• Shelby Martin, PT, DPT
• Michelle Valli Mather, CMT
• Christopher Perez Matteson, P.T
• Jennifer McMahon, DPT
• Michael McMahon, ATC
• Cesar Omar Medina Ruiz
• Stephany J Mejia
• Phyllis Lee Meneses, RN

• Orthopedic Physical Therapist in Mammoth Lakes, CA
• Providers in Mammoth Lakes, CA by specialty
• Orthopedic Physical Therapist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.