Claudia Mast, LMSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

008140 Issued in IA

Practice address

301 W Burlington
Fairfield, IA 52556-5255

Phone

(641) 472-5771

NPI assigned

Dec 6, 2018

Last updated

May 19, 2026By the provider in NPPES

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 IA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

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.

• Optimae Lifeservices,Inc.

  • Community/Behavioral Health Agency
  • Muscatine, IA
  • NPI 1184898470
  Medicare reassignment NPD
• Una Vida / One Life Counseling

  • Adult Mental Health Clinic/Center
  • Fairfield, IA
  • NPI 1649135765
  NPD Authorized official
• Optimae Lifeservices, Inc,

  • Community/Behavioral Health Agency
  • Fairfield, IA
  • NPI 1174520084

  Clinical

  NPD
• Nurse in the House, Inc.

  dba Nurse in the House, Inc., Central Iowa

  • Home Health Agency
  • Des Moines, IA
  • NPI 1598196040
  NPD (past)

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

{
    "created_epoch": "1544054400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1194296905",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "301 W BURLINGTON AVE",
            "city": "FAIRFIELD",
            "state": "IA",
            "postal_code": "525563242",
            "telephone_number": "641-472-5771"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "301 W BURLINGTON",
            "city": "FAIRFIELD",
            "state": "IA",
            "postal_code": "525565255",
            "telephone_number": "641-472-5771"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAST",
        "first_name": "CLAUDIA",
        "credential": "LMSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-12-06",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IA",
            "license": "008140",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hannah Marie Losey, PT, DPT, ATC
• Karen S Machholzwesely, COTA
• Madison County Medical Equipment Inc (Jackson Medical Supply)
• Maharishi International University
• Jaime Ann Martin, PTA
• Jennifer Rebecca Mazza, ARNP, FNP-C
• Mandy Jo McCarty, NP-C
• Katherine Page McCloney, DPT
• Judy Elizabeth McClure, LPN
• John Michael McConeghey, D.C.

• Clinical Social Worker in Fairfield, IA
• Providers in Fairfield, IA by specialty
• Clinical Social Worker in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.