NPI registry status
Active
2026 NPPES data Oncology Clinical Nurse Specialist NPI 1023607975 PA-C
Verify on CMS → Alexandra Arnieri, PA-C
Oncology Clinical Nurse Specialist in Gilbert, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 211 in Oncology Clinical Nurse Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
53
Medicare Part D claims · 22 beneficiaries · Oncology Clinical Nurse Specialist avg: 435
MIPS score
81.5/100
▼ 2 pts below national avg 83.5 · Above neutral
Industry payments
$79.66
4 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Alexandra Arnieri, PA-C reported a CMS MIPS final score of 81.5/100 - below the 83.5 national average - and filed 53 Medicare Part D claims in 2023.
- 81.5/100
- MIPS score · -2 vs avg
- 53
- Part D claims, 2023
- $79.66
- industry payments (Sunshine Act)
- ≥32nd
- pct among measured MIPS (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1023607975 · Oncology Clinical Nurse Specialist
NPI-10 · ENUM-RECENT · TAX-TRACE · MIPS-INLINE · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1023607975
- ENUM-RECENT 2021
- TAX-TRACE 211
- MIPS-INLINE 81.5/100
- RX-TRACE 53
- BOOK-THIN 1 in Arizona
- PHOTO-FINISH Christine Rimkus · ±0.1
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Deana Kehres · l…
Deana Kehres
81 MIPS pts
- Lisa Smith · near
Lisa Smith
81.3 MIPS pts
- Arnieri · this p…
Arnieri · this provider
81.5 MIPS pts
- Christine Rimkus…
Christine Rimkus
81.6 MIPS pts
- Sharri Lacher · …
Sharri Lacher
83 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Alexandra Arnieri, PA-C's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
82 ≥ 32nd percentile 32% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Alexandra Arnieri, PA-C sits
This provider among oncology clinical nurse specialist peers
Across the 29 oncology clinical nurse specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Alexandra Arnieri, PA-C writes more Part D claims than 10% of them and scores higher on MIPS quality than 24% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one oncology clinical nurse specialist peer from a representative sample of 28; the gold marker is Alexandra Arnieri, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Alexandra Arnieri, PA-C?
Near national averagePrimary specialty
Oncology Clinical Nurse Specialist
Medicare Part D claims
53 88% vs specialty avg
MIPS final score
81.5/100 2 pts vs avg
Specialty distribution in Arizona
How Oncology Clinical Nurse Specialist compares to other specialties among Arizona providers
Medicare quality performance, MIPS
Alexandra Arnieri, PA-C's 2023 MIPS final score plotted against the Oncology Clinical Nurse Specialist national average
- MIPS Final Score
- 81.5/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1023607975 |
|---|---|
| Specialty | Oncology Clinical Nurse Specialist |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 01/14/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
81.4923
Final Score
Measured-score avg: 83.5
38.3075
Cost
100
Promoting Interoperability
Reporting: Group practice
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 Alexandra Arnieri, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$80
Largest payer
Merck Sharp & Dohme LLC
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.
53
Total Claims
$536
Total Drug Cost
22
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 53
- Total Day Supply
- 587
- Generic Drug Cost
- $522
- Opioid Claims
- 13 (24.5% rate)
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 1.33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Gabapentin | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Oncology Clinical Nurse Specialist Overview
How Alexandra Arnieri, PA-C fits within the Oncology Clinical Nurse Specialist landscape nationally.
211
Oncology Clinical Nurse Specialist Providers in US
39
States with Oncology Clinical Nurse Specialist
435
Avg Claims per Provider
Alexandra Arnieri, PA-C's 53 claims are below the specialty average of 435.
Nationwide Oncology Clinical Nurse Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Arnieri, both outside Arizona so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (81.5 here).
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Frequently Asked Questions
What is Alexandra Arnieri, PA-C's specialty? ▼
Alexandra Arnieri, PA-C specializes in Oncology Clinical Nurse Specialist and practices in Gilbert, Arizona. Credentials: PA-C.
How much does Alexandra Arnieri, PA-C prescribe under Medicare Part D? ▼
In 2023, Alexandra Arnieri, PA-C wrote 53 Medicare Part D claims totaling $536 in drug costs for 22 beneficiaries.
What is Alexandra Arnieri, PA-C's Medicare quality score? ▼
Alexandra Arnieri, PA-C has a CMS MIPS Final Score of 81.5/100, Cost: 38.3. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Alexandra Arnieri, PA-C located? ▼
Alexandra Arnieri, PA-C is located at 1900 N HIGLEY ROAD, Gilbert, AZ, 85234. Phone: (480) 543-2000.
What is Alexandra Arnieri, PA-C's NPI number? ▼
Alexandra Arnieri, PA-C's National Provider Identifier (NPI) is 1023607975, issued on 01/14/2021.
Does Alexandra Arnieri, PA-C prescribe opioids? ▼
Yes, Alexandra Arnieri, PA-C had 13 opioid claims in 2023 with an opioid prescribing rate of 24.5%.
How many Oncology Clinical Nurse Specialist providers are there in the US? ▼
There are 211 Oncology Clinical Nurse Specialist providers across 39 states in the US. The average Oncology Clinical Nurse Specialist provider writes 435 Medicare Part D claims per year.
What drugs does Alexandra Arnieri, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Alexandra Arnieri, PA-C's most frequently prescribed drugs include Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alexandra Arnieri, PA-C accept Medicare? ▼
Alexandra Arnieri, PA-C appears in CMS Medicare data with 53 Part D claims and 22 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alexandra Arnieri, PA-C's credentials? ▼
Alexandra Arnieri, PA-C's NPI is 1023607975 with credentials PA-C. 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
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.