Geraldine Oka Matsumura, PHD APRN

Primary specialty

Addiction (Substance Use Disorder) Registered NurseTaxonomy code 163WA0400X

License

1890478900 Issued in UT

Practice address

117 West 200 South
Farmington, UT 84025-1036

Phone

(801) 451-4843

Fax

(801) 451-2839

NPI assigned

Sep 26, 2006

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Philosophy

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.

• Davis Behavioral Health Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Layton, UT
  • NPI 1770641672
  NPD (past)
• Dybreak Behavioral Healthcare

  • Mental Health Counselor
  • Farmington, UT
  • NPI 1730251844
  NPD (past)

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

{
    "created_epoch": "1159228800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1346341971",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1036",
            "address_2": "117 WEST 200 SOUTH",
            "city": "FARMINGTON",
            "state": "UT",
            "postal_code": "840251036",
            "telephone_number": "801-451-4843",
            "fax_number": "801-451-2839"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "117 WEST 200 SOUTH",
            "city": "FARMINGTON",
            "state": "UT",
            "postal_code": "840251036",
            "telephone_number": "801-451-4843",
            "fax_number": "801-451-2839"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATSUMURA",
        "first_name": "GERALDINE",
        "middle_name": "OKA",
        "name_prefix": "Dr.",
        "credential": "PHD APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-09-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "UT",
            "license": "1890474405",
            "primary": false
        },
        {
            "code": "163WA0400X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Addiction (Substance Use Disorder)",
            "state": "UT",
            "license": "1890478900",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emma Mansour, PHD
• Anna Fraser Marasco
• Jessikah Marsing
• Hailey Eliza Ashcroft Martineau
• Marisela Martinez
• Emily Maughan
• Chad B McBride, D.O
• Dawn S. McDonald, ED.S.
• Lara Anne McKee, ASHA CCC
• Polly Ann McQuarrie, ACMHC

• Addiction (Substance Use Disorder) Registered Nurse in Farmington, UT
• Providers in Farmington, UT by specialty
• Addiction (Substance Use Disorder) Registered Nurse in Utah

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.