NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Allison Sullivan, L.M.S.W.

Social Worker in Greenville, SC · enumerated 2008 · practices at New Dawn Counseling, LLC.

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

National Provider Identifier

1790930634

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Registry record

Entity type Individual (Type 1)
Name Mary Allison Sullivan
Credential L.M.S.W.
Sex Female
Practice address 25 Woods Lake Rd Ste 712, Greenville, SC, 29607
Phone (864) 334-7826
Enumeration date Nov 19, 2008
Last updated in NPPES May 23, 2022

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 9910 (SC) Primary

Other identifiers

Identifier Type State Issuer
9910 Other SC SC SOCIAL WORK LICENSE

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

How do I verify Mary Sullivan's NPI record?
Cross-check NPI 1790930634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1790930634 active?
Yes, as of the latest NPPES snapshot, NPI 1790930634 is active (record last updated 2022-05-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-23.