Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael C Grato

Hearing Instrument Specialist in Prescott Valley, AZ · enumerated 2014.

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

National Provider Identifier

1083015432

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael C Grato

Sex Male

Practice address 3131 N Robert Rd # 3, Prescott Valley, AZ, 86314

Phone (928) 830-9101

Enumeration date Sep 4, 2014

Last updated in NPPES Oct 2, 2018

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 5938 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Michael Grato?

The National Provider Identifier (NPI) for Michael Grato is 1083015432, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Grato practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-02.