Marissa Mason

Primary specialty

Occupational Therapy AssistantTaxonomy code 224Z00000X

License

7136-27 Issued in WI

Practice address

3360 Gateway Rd
Brookfield, WI 53045-5115

Phone

(262) 923-7101

NPI assigned

Aug 4, 2025

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not 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 and National Provider Directory roles.

• Greenfield Rehab Agency Unc.

  • Skilled Nursing Facility
  • Kewaunee, WI
  • NPI 1801006580
  NPD (past)
• Greenfield Rehabilitation Agency, Inc.

  • Physical Therapist
  • Brookfield, WI
  • NPI 1790230571
  NPD (past)

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

{
    "created_epoch": "1754265600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1295619005",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3360 GATEWAY RD",
            "city": "BROOKFIELD",
            "state": "WI",
            "postal_code": "530455115"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3360 GATEWAY RD",
            "city": "BROOKFIELD",
            "state": "WI",
            "postal_code": "530455115",
            "telephone_number": "262-923-7101"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASON",
        "first_name": "MARISSA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-08-04",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "224Z00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapy Assistant",
            "state": "WI",
            "license": "7136-27",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sami Martini, DDS
• Heather Marie Martyn, BCBA
• Kathleen Peroutka Marver
• Mary M. Milbrath, MD, SC
• Michelle Maske
• Massage in Brookfield Area
• Jamil Massey
• Morgan Elizabeth Anne Materna, OTR/L
• Hannah Mates
• Jonathan Mathwig, PT

• Occupational Therapy Assistant in Brookfield, WI
• Providers in Brookfield, WI by specialty
• Occupational Therapy Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.