NPIMap

Individual provider Active NPI

Trinity M Walter, PA-C

  • Physician Assistant
  • Des Moines, IA
National Provider Identifier
1659189876
Registry record updated Jul 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
138121 Issued in IA
Practice address
808 5TH Ave
Des Moines, IA 50309-1315
Phone
(515) 244-2267
NPI assigned
Dec 19, 2024
Last updated
Jul 14, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 14, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 146030 MT
Physician Assistant 363A00000X 138121 IA Primary

Addresses

Primary practice location

808 5TH Ave
Des Moines, IA 50309-1315

Mailing address

123 S 27TH St
Billings, MT 59101-4227
Phone (406) 247-3350

Other practice location 1

123 S 27th St
Billings, MT 59101-4227
Phone (406) 247-3350

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241231001619 MT Practitioner - Physician Assistant 0042747180 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

123 S 27 St
Billings, MT 59101-4200

123 S 27TH St
Billings, MT 59101-4227
Phone (406) 247-3200

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Yellowstone City-County Health Department CurrentSince Feb 24, 2025 Accepting new patients
Yellowstone City-County Health Dept CurrentSince Feb 24, 2025 Accepting new patients

Locations

123 S 27th St
Billings, MT 59101
Phone (406) 247-3200

Organizations & group practices 2

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.

Hospital & facility affiliations 8

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1734566400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1659189876",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "123 S 27TH ST",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591014227",
            "telephone_number": "406-247-3350",
            "fax_number": "406-247-3389"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "808 5TH AVE",
            "city": "DES MOINES",
            "state": "IA",
            "postal_code": "503091315",
            "telephone_number": "515-244-2267"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "123 S 27th St",
            "address_purpose": "LOCATION",
            "city": "Billings",
            "state": "MT",
            "postal_code": "591014227",
            "country_code": "US",
            "telephone_number": "406-247-3350",
            "fax_number": "406-247-3389",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALTER",
        "first_name": "TRINITY",
        "middle_name": "M",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-12-19",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MT",
            "license": "146030",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IA",
            "license": "138121",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Des Moines, IA

Sources for this page

Verify at the official NPI Registry.