Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Robert Asper, LCSW

Clinical Social Worker in Salt Lake City, UT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1407835218

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Registry record

Entity type Individual (Type 1)

Name William Robert Asper

Credential LCSW

Sex Male

Practice address 1020 S Main St, Suite 100, Salt Lake City, UT, 84101

Phone (801) 539-7000

Fax (801) 539-7050

Enumeration date Jan 10, 2006

Last updated in NPPES Sep 13, 2012

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 03205523501 (UT) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
P64616	Other	UT	MEDICARE ADVANTAGE PLANS
107009849101	Other	UT	INTERMOUNTAIN HEALTH CARE
004662195	Other	UT	RAILROAD MEDICARE
695320	Other	UT	DESERET MUTUAL
942938348ASP	Other	UT	EDUCATORS MUTUAL

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is William Asper?

William Asper is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-13.