Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassie N Williams, MS, CRNA

Certified Registered Nurse Anesthetist in Saint Petersburg, FL · enumerated 2021.

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

National Provider Identifier

1346813060

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Registry record

Entity type Individual (Type 1)

Name Cassie N Williams

Credential MS, CRNA

Sex Female

Practice address 701 6th St S Unit 4235, Saint Petersburg, FL, 33701

Phone (386) 965-7900

Enumeration date Jul 20, 2021

Last updated in NPPES Feb 3, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 9294516 (FL) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License APRN11019034 (FL) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
114005600	Medicaid	FL	-

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 Cassie Williams?

The National Provider Identifier (NPI) for Cassie Williams is 1346813060, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cassie Williams practice?

The practice location on file with NPPES is in Saint Petersburg, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-03.