Organization Active NPI

William a. Moss, Psy.D., LLC

  • Clinical Psychologist
  • Rapid City, SD
National Provider Identifier
1033255146
Registry record updated Mar 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
416 Issued in SD
Legal business name
WILLIAM A. MOSS, PSY.D., LLC
Practice address
2525 W Main St Ste 216
Rapid City, SD 57702-2439
Phone
(605) 645-0371
NPI assigned
Jan 29, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Mar 16, 2026

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

Authorized official

Name
Dr. William A Moss, PSY.D.NPI 1629048483
Title
Proprietor
Phone
(605) 645-0371

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical PsychologistGroup: 193400000X SINGLE SPECIALTY GROUP 103TC0700X 416 SD Primary

Addresses

Primary practice location

2525 W Main St Ste 216
Rapid City, SD 57702-2439

Mailing address

2525 W Main St Ste 216
Rapid City, SD 57702-2439
Phone (605) 645-0371

Other identifiers 2

IdentifierTypeStateIssuer
6551862MedicaidSD
1629048483OtherSDNPI NUMBER (OLD)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in SD

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20071116000017 SD Part B Supplier - Clinic/Group Practice 4880782333 Receives reassigned benefits from 1 practitioner
Practice locations: Rapid City, SD

National Provider Directory

National Provider Directory

Locations

2525 W Main St
Ste 216
Rapid City, SD 57702
Phone (605) 645-0371

403 National St
Ste 1
Rapid City, SD 57702
Phone (605) 341-8647

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1170028800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773619200000",
    "number": "1033255146",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2525 W MAIN ST STE 216",
            "city": "RAPID CITY",
            "state": "SD",
            "postal_code": "577022439",
            "telephone_number": "605-645-0371"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2525 W MAIN ST STE 216",
            "city": "RAPID CITY",
            "state": "SD",
            "postal_code": "577022439",
            "telephone_number": "605-645-0371"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WILLIAM A. MOSS, PSY.D., LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-01-29",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A",
        "authorized_official_last_name": "MOSS",
        "authorized_official_first_name": "WILLIAM",
        "authorized_official_middle_name": "A",
        "authorized_official_title_or_position": "PROPRIETOR",
        "authorized_official_telephone_number": "605-645-0371",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PSY.D."
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist, Clinical",
            "state": "SD",
            "license": "416",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "6551862",
            "state": "SD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI NUMBER (OLD)",
            "identifier": "1629048483",
            "state": "SD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Rapid City, SD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.