Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ronald E Diaz, FNP

Individual provider Registered Nurse · NPI 1124263561

Ronald E Diaz, FNP is a Registered Nurse in Tucson, Arizona. Practices as a sole proprietor and works from 2 locations. Licensed in Arizona.

Licensed in
AZ
In the registry since
2008
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

2940 S 6th Ave
Tucson, AZ 85713-4705
Phone: (520) 613-1001
Fax: (520) 504-6483
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7890 N Cortaro Rd, Tucson, AZ 85743-8326 — (520) 202-7770

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP3518 (AZ)
Registered Nurse Taxonomy 163W00000X · Licence RN119389 (AZ)

Record details

NPI number1124263561
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP
Sole proprietorYes
NPI enumeratedDecember 15, 2008
Last updated in NPPESJune 6, 2025
Certification dateJune 6, 2025

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients185
Services billed 338 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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