NPI Portal NPI Lookup & Verification

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

Mary Anne Sullivan, RD

Registered Dietitian in Long Beach, NY · enumerated 2026.

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

National Provider Identifier

1639020654

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Registry record

Entity type Individual (Type 1)
Name Mary Anne Sullivan
Credential RD
Sex Female
Practice address Long Beach, NY, 11561
Enumeration date Feb 5, 2026
Last updated in NPPES Feb 5, 2026

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 963162 (NY) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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 Mary Sullivan?
The National Provider Identifier (NPI) for Mary Sullivan is 1639020654, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Sullivan practice?
The practice location on file with NPPES is in Long Beach, 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 2026-02-05.