Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sierra Martinez

Occupational Therapy Assistant in Prescott, AZ · enumerated 2025.

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

National Provider Identifier

1205646585

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Registry record

Entity type Individual (Type 1)

Name Sierra Martinez

Sex Female

Practice address 1749 N Williamson Valley Rd, Prescott, AZ, 86305

Phone (928) 717-3263

Enumeration date Jan 9, 2025

Last updated in NPPES Jan 9, 2025

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OTA-050047 (AZ) 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.

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Frequently asked questions

Where does Sierra Martinez practice?

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

What is the NPI number for Sierra Martinez?

The National Provider Identifier (NPI) for Sierra Martinez is 1205646585, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Lavinia Lucescu School Registered Nurse · Prescott, AZ NPI 1396052957 Laura Pursell School Registered Nurse · Prescott, AZ NPI 1881090132 Jocelyn Foster Speech-Language Pathologist · Prescott, AZ NPI 1497583645

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-09.