Robin A Williams, PH.D.,LCSW,

Robin A Williams is a Clinical Social Worker provider (Social Worker) practicing in Duluth, MN, registered in the NPPES registry with NPI 1336173756 since 2006. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1336173756
Entity type	Individual (Type 1)
Name	Robin A Williams
Credential	PH.D.,LCSW,
Sex	Male
Practice address	Duluth, MN, 55802
Phone	2183419158
Enumeration date	2006-07-10
Last updated in NPPES	2018-11-09

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1041C0700X	Clinical Social Worker	Primary	11329	MN

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Copy-ready billing details

Provider: Robin Williams, PH.D.,LCSW,
NPI: 1336173756
Taxonomy: 1041C0700X (Clinical Social Worker)
Address: Duluth, MN, 55802

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1649651878	Abdulqadir Ahmed	Individual	Driver	Duluth, MN
1689055329	Mobile Transportation LLC	Organization	Non-emergency Medical Transport (VAN)	Duluth, MN
1245606375	Mobile Transportation LLC	Organization	Non-emergency Medical Transport (VAN)	Duluth, MN
1184216657	Tapestry Psychotherapy Group, LLC	Organization	Clinical Social Worker	Duluth, MN

Verify this record

Cross-check NPI 1336173756 against the authoritative CMS record: view Robin A Williams on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Robin Williams?

The National Provider Identifier (NPI) for Robin Williams is 1336173756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robin Williams practice?

The practice location on file with NPPES is in Duluth, MN. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-11-09.