RONALD E DIAZ FNP
NPI 1124263561
Nurse Practitioner - Family in Tucson, AZ

Q: What is Ronald Diaz's NPI number?

The NPI number for Ronald Diaz is 1124263561. It was assigned to this individual provider in the NPPES registry on December 15, 2008.

Q: What is Ronald Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Diaz was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 15, 2008PECOS Enrolled

97.64/100

CMS Quality Rating

2940 S 6TH AVE, TUCSON, AZ 85713(520) 613-1001(520) 504-6483 Get Directions Write a Review

NPPES record last updated: June 6, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 6, 2025, Jan 27, 2021, Sep 22, 2020 and 1 more (4 updates tracked since 2016).

On this page

About Ronald E Diaz Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RONALD E DIAZ FNP (NPI 1124263561) is an individual family provider in Tucson, Arizona, licensed in Arizona (AP3518) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in Tucson.

NPPES Registry Identity

NPI1124263561

Entity TypeIndividualMale

Primary Taxonomy363LF0000X

Provider Legal NameRONALD E DIAZCredential: FNP

Location Address2940 S 6TH AVETucson, AZ 85713-4705

Mailing Address102 Woodmont Blvd Ste 600Nashville, TN 37205-5250 · (888) 987-1151

Phone(520) 613-1001

Fax(520) 504-6483

Sole ProprietorYes

Enumeration DateDecember 15, 2008

Last NPPES UpdateJune 6, 20254 updates tracked since enumeration

NPPES CertifiedJune 6, 2025

✔ NPI 1124263561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in AZ · AP3518

Also ListedRegistered NurseTaxonomy 163W00000X · License RN119389 (AZ)

2940 S 6TH AVE, Tucson, AZ 85713

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Secondary Practice Location 1

Location 17890 N Cortaro RdTucson, AZ 85743-8326 · Phone (520) 202-7770

Other Identifiers 1

Medicaid483140AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ronald E Diaz Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ronald Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwest Allied Physicians LLC

9.1 mi

General Practice

6060 N FOUNTAIN PLAZA DR STE 270
Tucson, AZ 85704

Reassigned Medicare billing, Arizona enrollment
296 clinicians in this Medicare group

NPI 1003833179 (520) 229-2578

Archwell Health Professional Services Of Arizona, LLC

96 mi

Internal Medicine

4315 E MAIN ST
Mesa, AZ 85205

Reassigned Medicare billing, Arizona enrollment
110 clinicians in this Medicare group

NPI 1558026880 (480) 870-7500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

176 services128 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

47 services45 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

29 services29 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

25 services25 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85713 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$85.89 typical visit price

range $55.44 – $168.60

Typical copayment $21.47 (range $13.86 – $42.15)

Most-billed visit code 99203

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.64/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

84.77

Promoting Interoperability

98.67

Improvement Activities

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SONIA BERTRAM FNP-C

Nurse Practitioner (Family)