Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Shannon Sullivan, RN

Prescribing (Medical) Psychologist in Tracy, CA · enumerated 2018.

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

National Provider Identifier

1922574920

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Registry record

Entity type Individual (Type 1)

Name Shannon Sullivan

Credential RN

Sex Female

Practice address 20 E Eaton Ave, Tracy, CA, 95376

Phone (209) 553-0737

Enumeration date Oct 17, 2018

Last updated in NPPES May 3, 2025

Taxonomy & licenses

103TP0016X Prescribing (Medical) Psychologist Behavioral Health & Social Service Providers Primary

163W00000X Registered Nurse Nursing Service Providers · License 789456 (IA) Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 specialty is Shannon Sullivan?

Shannon Sullivan is registered in NPPES with the primary taxonomy of Prescribing (Medical) Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-03.