Active NPI
William a. Moss, Psy.D., LLC
- Clinical Psychologist
- Rapid City, SD
National Provider Identifier
1033255146
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 416
- 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
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.
- 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) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6551862 | Medicaid | SD | |
| 1629048483 | Other | SD | NPI NUMBER (OLD) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in SD
Enrollment records 1
National Provider Directory
National Provider DirectoryLocations
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.
-
- Clinical Psychologist
- Rapid City, SD
- NPI 1629048483
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
- Kristen Miranda Wilen, MA, SLP
- Patricia Wiles, CMA
- Kelly R Wiley, BS MLS (ASCP)
- Richard Scott Wiley, LPC-MH
- Katherine Lyford Wilgers, NP
- Kirsten William-Kennedy
- Roxanne Lynn William, RPH
- Williams Oral and Maxillofacial Surgery
- Williams Oral and Maxillofacial Surgery, Prof. L.L.C.
- Williams Psychological, LLC
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.