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

Dr. Gretchen Ann Mims, LMSW, PH.D

School Social Worker in North Chili, NY · enumerated 2011.

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

National Provider Identifier

1639455348

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Registry record

Entity type Individual (Type 1)

Name Dr. Gretchen Ann Mims

Credential LMSW, PH.D

Sex Female

Practice address North Chili, NY, 14514

Phone (585) 889-6429

Enumeration date Oct 26, 2011

Last updated in NPPES Oct 26, 2011

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

Taxonomy & licenses

1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 072120-1 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Gretchen Mims?

The National Provider Identifier (NPI) for Gretchen Mims is 1639455348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gretchen Mims practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-26.