2026 NPPES data Specialist NPI 1114201126 M.D.
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ARTURO UY, M.D.

Specialist in UPLAND, California. 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
28
Medicare Part D claims · Specialist avg: 1K

What the federal data shows

ARTURO UY, M.D. filed 28 Medicare Part D claims in 2023 as a Specialist in UPLAND, California.

28
Part D claims, 2023

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.

ARTURO UY, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

28 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about ARTURO UY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/10/2011

NPI 1114201126

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

28 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in California

How Specialist compares to other specialties among California providers

California providers

Specialist share within California

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within California

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — ABMS / AOA estimate

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).

ARTURO UY, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 170 W. 24TH STREET, UPLAND, CA, 91784, with a listed phone of (909) 946-5818. NPI 1114201126 was issued on 10/10/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what UY 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 28 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $187 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

170 W. 24TH STREET
UPLAND, CA 91784

Provider Details

NPI 1114201126
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 10/10/2011

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ARTURO UY, M.D.. To verify ARTURO UY, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

28
Total Claims
$187
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
79
Total Day Supply
2,360
Generic Drug Cost
$170

Patient Demographics

Average Patient Age
78.5 years
Avg HCC Risk Score
0.42

Specialist Overview

How ARTURO UY, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

ARTURO UY, M.D.'s 28 claims are below the specialty average of 1,474.

Nearby Specialist Providers in California

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARTURO UY, M.D.'s specialty?
ARTURO UY, M.D. specializes in Specialist and practices in UPLAND, California. Credentials: M.D..
How much does ARTURO UY, M.D. prescribe under Medicare Part D?
In 2023, ARTURO UY, M.D. wrote 28 Medicare Part D claims totaling $187 in drug costs for N/A beneficiaries.
Where is ARTURO UY, M.D. located?
ARTURO UY, M.D. is located at 170 W. 24TH STREET, UPLAND, CA, 91784. Phone: (909) 946-5818.
What is ARTURO UY, M.D.'s NPI number?
ARTURO UY, M.D.'s National Provider Identifier (NPI) is 1114201126, issued on 10/10/2011.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
Does ARTURO UY, M.D. accept Medicare?
ARTURO UY, M.D. appears in CMS Medicare data with 28 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARTURO UY, M.D.'s credentials?
ARTURO UY, M.D.'s NPI is 1114201126 with credentials M.D.. 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.
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