NPI Portal NPI Lookup & Verification

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

Ms. Ann Frances Sullivan, MSW

Social Worker in Boulder, CO · enumerated 2007 · practices at Boulder County Colorado.

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

National Provider Identifier

1760538391

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Registry record

Entity type Individual (Type 1)
Name Ms. Ann Frances Sullivan
Credential MSW
Sex Female
Practice address Boulder, CO, 80304
Phone (303) 441-0151
Fax (303) 441-1517
Enumeration date Jan 26, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

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 NPI 1760538391 active?
Yes, as of the latest NPPES snapshot, NPI 1760538391 is active (record last updated 2007-07-08).
How do I verify Ann Sullivan's NPI record?
Cross-check NPI 1760538391 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.