Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Katie Elizabeth Viola-Downey, LICSW

Clinical Social Worker in West Springfield, MA · enumerated 2008.

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

National Provider Identifier

1629226303

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Registry record

Entity type Individual (Type 1)

Name Mrs. Katie Elizabeth Viola-Downey

Credential LICSW

Sex Female

Practice address West Springfield, MA, 01089

Phone (413) 732-0040

Fax (413) 732-0040

Enumeration date Sep 5, 2008

Last updated in NPPES Oct 18, 2022

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 116145 (MA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 116145 (MA) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 116145 (MA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 116145 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
110095526A	Medicaid	MA	-

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

Where does Katie Viola-Downey practice?

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

What is the NPI number for Katie Viola-Downey?

The National Provider Identifier (NPI) for Katie Viola-Downey is 1629226303, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Savida Health, PC Addiction Medicine (Internal Medicine) Physician · W Springfield, MA NPI 1316253875 Savida Agency, Inc. Community/Behavioral Health Agency · W Springfield, MA NPI 1871801688 Center for Pelvic Physical Therapy, LLC Physical Therapy Clinic/Center · West Springfield, MA NPI 1043607351 Raymond Landry Mental Health Counselor · West Springfield, MA NPI 1124777149 Miosotys Santiago Social Worker · West Springfield, MA NPI 1659001212 Katherine Pawlowski Family Nurse Practitioner · W Springfield, MA NPI 1215705074

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-18.