Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Shirl Simkins I, R.D.H.

Dental Hygienist in Flagstaff, AZ · enumerated 2017.

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

National Provider Identifier

1407380033

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Registry record

Entity type Individual (Type 1)

Name Mrs. Shirl Simkins I

Credential R.D.H.

Sex Female

Practice address 2920 N 4th St, Flagstaff, AZ, 86004

Phone (928) 213-6100

Fax (928) 522-9537

Enumeration date Apr 20, 2017

Last updated in NPPES Apr 20, 2017

Taxonomy & licenses

124Q00000X Dental Hygienist Dental 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Shirl Simkins practice?

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

What is the NPI number for Shirl Simkins?

The National Provider Identifier (NPI) for Shirl Simkins is 1407380033, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-20.