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

Frank Mikkelsen, DDS

Dentist in Sonora, CA · enumerated 2007.

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

National Provider Identifier

1700907946

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Registry record

Entity type Individual (Type 1)

Name Frank Mikkelsen

Credential DDS

Sex Male

Practice address Sonora, CA, 95370

Phone (209) 532-4607

Fax (209) 533-5487

Enumeration date Apr 3, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License 30435 (CA) Primary

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

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Frequently asked questions

How do I verify Frank Mikkelsen's NPI record?

Cross-check NPI 1700907946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1700907946 active?

Yes — as of the latest NPPES snapshot, NPI 1700907946 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.