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MR. WILLIAM G. SAN ANTONIO III MSW
NPI 1720075815
Social Worker - Clinical in Pawtucket, RI

Active since October 04, 2005
100 LAFAYETTE ST, SUITE 305, PAWTUCKET, RI 02860(401) 942-5553 Get Directions Write a Review

NPPES record last updated: January 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. William G. San Antonio Iii Msw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. WILLIAM G. SAN ANTONIO III MSW (NPI 1720075815) is an individual clinical provider in Pawtucket, Rhode Island, licensed in Rhode Island (ISW00219) and active in the NPI registry since October 2005. He maintains a secondary practice location in Providence.

NPPES Registry Identity

NPI1720075815
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. WILLIAM G. SAN ANTONIO IIICredential: MSW
Location Address100 LAFAYETTE ST, SUITE 305Pawtucket, RI 02860-6008
Mailing Address36 Vale AveCranston, RI 02910-4318 · (401) 275-0290
Phone(401) 942-5553
Sole ProprietorNo
Enumeration DateOctober 4, 2005
Last NPPES UpdateJanuary 23, 2026
NPPES CertifiedJanuary 23, 2026
✔ NPI 1720075815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in RI · ISW00219
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
100 LAFAYETTE ST, Pawtucket, RI 02860
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Secondary Practice Location 1

Location 11520 Broad StProvidence, RI 02905-2811 · Phone (401) 461-5234

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. STACIE CUMMINS-MCLAUGHLIN L.I.C.S.W.
Social Worker (Clinical)
100 LAFAYETTE ST, SUITE 305
PAWTUCKET, RI 02860
Providence County (401) 722-9091
CYNTHIA M BARTE LICSW, LCDP, LLC
Community/Behavioral Health
100 LAFAYETTE ST, SUITE 206
PAWTUCKET, RI 02860
Providence County (401) 965-6699
MR. JAMES GERARD GREGORY LICSW
Counselor (Mental Health)
100 LAFAYETTE ST
PAWTUCKET, RI 02860
Providence County (401) 771-7016
ROBERT GREEN WHITMAN-RAYMOND MSW, CAS
Social Worker (Clinical)
100 LAFAYETTE ST
PAWTUCKET, RI 02860
Providence County (401) 729-7541
MRS. LAURIE MANSFIELD RICCIO LICSW
Social Worker (Clinical)
100 LAFAYETTE ST, SUITE 305
PAWTUCKET, RI 02860
Providence County (401) 722-9091
JANE M WHELAN LICSW
Social Worker (Clinical)
100 LAFAYETTE ST, SUITE 305
PAWTUCKET, RI 02860
Providence County (508) 463-7698
DR. LEE MIRIAM WHITMAN-RAYMOND PHD
Social Worker (Clinical)
100 LAFAYETTE ST
PAWTUCKET, RI 02860
Providence County (401) 729-7542
SUZANNE BLACK MS, MSW
Counselor (Addiction (Substance Use Disorder))
100 LAFAYETTE ST
PAWTUCKET, RI 02860
Providence County (401) 421-0355

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William San Antonio's NPI number?

The NPI number for William San Antonio is 1720075815. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Where is William San Antonio located?

William San Antonio practices at 100 Lafayette St Suite 305, Pawtucket, RI 02860. The listed phone number is (401) 942-5553.

What is William San Antonio's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for William San Antonio was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.