Cassandra Mason, RDN

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA70072208 Issued in WA

Practice address

112 Quail LN
Walla Walla, WA 99362-7171

Phone

(720) 237-4895

NPI assigned

Mar 2, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Loma Linda University School of Medicine, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Idaho Pain Clinic PLLCGroup PAC ID 3274712609, 9 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.fhirpoint.open.allscripts.com/fhirroute/open/73383

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.

• Idaho Pain Clinic PLLC

  • Pain Medicine (Anesthesiology) Physician
  • Sandpoint, ID
  • NPI 1417267329

  WA

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1614643200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765411200000",
    "number": "1760077705",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 427",
            "city": "COLLEGE PLACE",
            "state": "WA",
            "postal_code": "993240427"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "112 QUAIL LN",
            "city": "WALLA WALLA",
            "state": "WA",
            "postal_code": "993627171",
            "telephone_number": "720-237-4895"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1113 E Westview Ct",
            "address_purpose": "LOCATION",
            "city": "Spokane",
            "state": "WA",
            "postal_code": "992181319",
            "country_code": "US",
            "telephone_number": "208-263-9757",
            "fax_number": "208-965-8128",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASON",
        "first_name": "CASSANDRA",
        "credential": "RDN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-02",
        "last_updated": "2025-12-11",
        "certification_date": "2025-12-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA70072208",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vernardino Martinez
• Gregory Joseph Martonick, M.D.
• Kenna E Marx, PHARMD
• Roberto Masferrer, L.AC, M.AC.O.M.
• Anne Michele Mason, ARNP
• James C Mason, M.D.
• Matthew J. Sacks, M.D., P.C.
• Jenny Mattmiller, LMT
• Maxim Healthcare Services, Inc.
• Jennifer Maxon, RN

• Physician Assistant in Walla Walla, WA
• Providers in Walla Walla, WA by specialty
• Physician Assistant in Washington

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