2026 NPPES data Nurse Practitioner NPI 1891279907 NP
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DENISE DIAZ, NP

Nurse Practitioner in GOODYEAR, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
699
Medicare Part D claims · 112 beneficiaries · Nurse Practitioner avg: 1K
MIPS score
35.474/100
▼ 48 pts below national avg 83.1 · [object Object]
Industry payments
$168.42
11 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DENISE DIAZ, NP reported a CMS MIPS final score of 35.474/100 — below the 83.1 national average — and filed 699 Medicare Part D claims in 2023.

35.474/100
MIPS score · -48 vs avg
699
Part D claims, 2023
$168.42
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

DENISE DIAZ, NP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

35 3rd percentile higher than 3% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). This entry sits in this band. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about DENISE DIAZ, NP?

Below national average

NPI registry status

Active

Issued 09/24/2018

NPI 1891279907

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

699 36% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

MIPS final score

35.474/100 47.626% pts

Below average band

vs 83.1 national avg

Specialty distribution in Arizona

How Nurse Practitioner compares to other specialties among Arizona providers

Arizona providers

Nurse Practitioner share within Arizona

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within Arizona

Medicare quality performance — MIPS

DENISE DIAZ, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average

Below national average
MIPS Final Score
35.474/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nurse Practitioner) — 35.474/100 vs national avg 83.1

0%100%National avg83%35.5%
MIPS final score (Nurse Practitioner) — 35.474/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

DENISE DIAZ, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 1325 N LITCHFIELD RD STE 120, GOODYEAR, AZ, 85395, with a listed phone of (602) 795-8700. NPI 1891279907 was issued on 09/24/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 699 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $58K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 35.474/100 for the 2023 performance year (Quality 69.5686, Cost 32.0113), compared with the national average of 83.1.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1325 N LITCHFIELD RD STE 120
GOODYEAR, AZ 85395

Provider Details

NPI 1891279907
Specialty Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 09/24/2018

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

35.474
Final Score
Avg: 83.1
69.5686
Quality
32.0113
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where DENISE DIAZ, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ARIZONA SPINE AND PAIN SPECIALISTS LLC
GLENDALE, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for DENISE DIAZ, NP. Source: openpaymentsdata.cms.gov.

Total received

$168

Largest payer

Boston Scientific Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

699
Total Claims
$58K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,031
Total Day Supply
29,711
Generic Drug Cost
$14K

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
3.51
Gender Split
71% female / 29% male
Age Distribution
<65: 32, 65-74: 32, 75-84: 36, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What DENISE DIAZ, NP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
52
Levothyroxine Sodium
48
Gabapentin
35
Trazodone Hcl
33
Losartan Potassium
31
Furosemide
28
Metformin Hcl
24
Buspirone Hcl
19
Lisinopril
15
Quetiapine Fumarate
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nurse Practitioner Overview

How DENISE DIAZ, NP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

DENISE DIAZ, NP's 699 claims are below the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as DIAZ.

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is DENISE DIAZ, NP's specialty?
DENISE DIAZ, NP specializes in Nurse Practitioner and practices in GOODYEAR, Arizona. Credentials: NP.
How much does DENISE DIAZ, NP prescribe under Medicare Part D?
In 2023, DENISE DIAZ, NP wrote 699 Medicare Part D claims totaling $58K in drug costs for 112 beneficiaries.
What is DENISE DIAZ, NP's Medicare quality score?
DENISE DIAZ, NP has a CMS MIPS Final Score of 35.474/100 (Quality: 69.5686, Cost: 32.0113). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DENISE DIAZ, NP located?
DENISE DIAZ, NP is located at 1325 N LITCHFIELD RD STE 120, GOODYEAR, AZ, 85395. Phone: (602) 795-8700.
What is DENISE DIAZ, NP's NPI number?
DENISE DIAZ, NP's National Provider Identifier (NPI) is 1891279907, issued on 09/24/2018.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does DENISE DIAZ, NP prescribe most often?
Based on 2023 Medicare Part D data, DENISE DIAZ, NP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DENISE DIAZ, NP accept Medicare?
DENISE DIAZ, NP appears in CMS Medicare data with 699 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENISE DIAZ, NP's credentials?
DENISE DIAZ, NP's NPI is 1891279907 with credentials NP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology