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

Mr. Ronald Zack, NP-C

Family Nurse Practitioner in Tucson, AZ · enumerated 2016.

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

National Provider Identifier

1104375732

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Registry record

Entity type Individual (Type 1)
Name Mr. Ronald Zack
Credential NP-C
Sex Male
Practice address Tucson, AZ, 85710
Phone (520) 496-4649
Fax (949) 695-4900
Enumeration date Sep 23, 2016
Last updated in NPPES May 30, 2024

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN082944 (AZ) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 259986 (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

What is the NPI number for Ronald Zack?
The National Provider Identifier (NPI) for Ronald Zack is 1104375732, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ronald Zack practice?
The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-30.