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

Brittany Michelle Mathes Winnicki, PHD

Clinical Psychologist in Jamaica Plain, MA · enumerated 2023.

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

National Provider Identifier

1619673191

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Registry record

Entity type Individual (Type 1)

Name Brittany Michelle Mathes Winnicki

Credential PHD

Sex Female

Practice address Jamaica Plain, MA, 02130

Phone (617) 671-0839

Enumeration date Feb 6, 2023

Last updated in NPPES Feb 20, 2026

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS02151 (RI) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY10000700 (MA) Primary

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

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

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.

What specialty is Brittany Mathes Winnicki?

Brittany Mathes Winnicki is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-20.