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Mr. Keith B Block, LCSW

Clinical Social Worker in Sioux Falls, SD · enumerated 2015.

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

National Provider Identifier

1558751933

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Registry record

Entity type Individual (Type 1)
Name Mr. Keith B Block
Credential LCSW
Sex Male
Practice address 6215 S Cliff Ave, Sioux Falls, SD, 57108
Phone (605) 322-3300
Fax (605) 322-3301
Enumeration date Jan 23, 2015
Last updated in NPPES Apr 15, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 5251 (SD) 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
3033 Other SD LICENSE

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.

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Frequently asked questions

Where does Keith Block practice?
The practice location on file with NPPES is in Sioux Falls, SD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Keith Block?
The National Provider Identifier (NPI) for Keith Block is 1558751933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-15.