2026 NPPES data Neuroradiology Physician NPI 1033646096 MBBS
Verify on CMS →

MATTHEW KAY, MBBS

Neuroradiology Physician in TUCSON, 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.
MIPS score
91.351/100
▲ 8 pts above national avg 83.1 · [object Object]
Industry payments
$16.0K
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MATTHEW KAY, MBBS reported a CMS MIPS final score of 91.351/100 — above the 83.1 national average.

91.351/100
MIPS score · +8 vs avg
Likely
board-certified (heuristic)

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.

MATTHEW KAY, MBBS's MIPS score vs every scored U.S. clinician

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

91 Top 37% higher than 63% 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%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

MATTHEW KAY, MBBS practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MATTHEW KAY, MBBS?

High performer (top quartile)

NPI registry status

Active

Issued 05/20/2017

NPI 1033646096

Primary specialty

Neuroradiology Physician

Niche

1,986 US NPIs in this specialty

MIPS final score

91.351/100 8.251000000000005% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Arizona

How Neuroradiology Physician compares to other specialties among Arizona providers

Arizona providers

Neuroradiology Physician share within Arizona

1. Neuroradiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neuroradiology Physician share within Arizona

Medicare quality performance — MIPS

MATTHEW KAY, MBBS's 2023 MIPS final score plotted against the Neuroradiology Physician national average

High performer (top quartile)
MIPS Final Score
91.351/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neuroradiology Physician) — 91.351/100 vs national avg 83.1

0%100%National avg83%91.4%
MIPS final score (Neuroradiology Physician) — 91.351/100 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).

MATTHEW KAY, MBBS is a Neuroradiology Physician provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MBBS. NPI: 1033646096. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MATTHEW KAY, MBBS appears in the CMS NPPES registry as a Neuroradiology Physician provider holding MBBS credentials at 1501 N CAMPBELL AVE, TUCSON, AZ, 85724, with a listed phone of (520) 626-3587. NPI 1033646096 was issued on 05/20/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KAY 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Neuroradiology Physician providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 91.351/100 for the 2023 performance year (Quality 77.2989), compared with the national average of 83.1.

Neuroradiology Physician is a narrow specialty nationwide, with 1,986 enrolled providers across 51 states and an average of 125 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

1501 N CAMPBELL AVE
TUCSON, AZ 85724

Provider Details

NPI 1033646096
Specialty Neuroradiology Physician
Credentials MBBS
Gender Male
NPI Issued 05/20/2017

CMS Quality Score (MIPS)

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

91.351
Final Score
Avg: 83.1
77.2989
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MATTHEW KAY, MBBS 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.

GOOD SHEPHERD HEALTH CARE SYSTEM
HERMISTON, OR
GRANDE RONDE HOSPITAL INC
LA GRANDE, OR
TUALATIN IMAGING PC
TUALATIN, OR
WILLAMETTE RADIOLOGY BILLING SERVICES LLC
MCMINNVILLE, OR

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 MATTHEW KAY, MBBS. Source: openpaymentsdata.cms.gov.

Total received

$16.0K

Largest payer

Blue Earth Diagnostics Limited

Most common payment type

Consulting Fee

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.

Neuroradiology Physician Overview

How MATTHEW KAY, MBBS fits within the Neuroradiology Physician landscape nationally.

1,986
Neuroradiology Physician Providers in US
51
States with Neuroradiology Physician
125
Avg Claims per Provider

Nearby Neuroradiology Physician Providers in Arizona

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

Compare Neuroradiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MATTHEW KAY, MBBS's specialty?
MATTHEW KAY, MBBS specializes in Neuroradiology Physician and practices in TUCSON, Arizona. Credentials: MBBS.
What is MATTHEW KAY, MBBS's Medicare quality score?
MATTHEW KAY, MBBS has a CMS MIPS Final Score of 91.351/100 (Quality: 77.2989). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MATTHEW KAY, MBBS located?
MATTHEW KAY, MBBS is located at 1501 N CAMPBELL AVE, TUCSON, AZ, 85724. Phone: (520) 626-3587.
What is MATTHEW KAY, MBBS's NPI number?
MATTHEW KAY, MBBS's National Provider Identifier (NPI) is 1033646096, issued on 05/20/2017.
How many Neuroradiology Physician providers are there in the US?
There are 1,986 Neuroradiology Physician providers across 51 states in the US. The average Neuroradiology Physician provider writes 125 Medicare Part D claims per year.
Does MATTHEW KAY, MBBS accept Medicare?
MATTHEW KAY, MBBS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MATTHEW KAY, MBBS's credentials?
MATTHEW KAY, MBBS's NPI is 1033646096 with credentials MBBS. 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.
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