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

Marti Ann Sidoli-Tanner, RDH, RDHAP

Advanced Practice Dental Therapist in Fresno, CA · enumerated 2021.

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

National Provider Identifier

1790452878

Verified

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Registry record

Entity type Individual (Type 1)

Name Marti Ann Sidoli-Tanner

Credential RDH, RDHAP

Sex Female

Practice address Fresno, CA, 93722

Phone (559) 304-4080

Fax (559) 275-3603

Enumeration date Aug 25, 2021

Last updated in NPPES Aug 25, 2021

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

Taxonomy & licenses

125K00000X Advanced Practice Dental Therapist Dental Providers · License HAP847 (CA) 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

What specialty is Marti Sidoli-Tanner?

Marti Sidoli-Tanner is registered in NPPES with the primary taxonomy of Advanced Practice Dental Therapist. 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 2021-08-25.