2026 NPPES data Specialist NPI 1255333589 MD
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Kenneth Choi, MD

Specialist in Tucson, 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 69,658 in 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
1K
Medicare Part D claims · 290 beneficiaries · Specialist avg: 1K
MIPS score
21.3/100
▼ 62 pts below national avg 83.1 · Below average
Industry payments
$1.5K
24 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kenneth Choi, MD reported a CMS MIPS final score of 21.3/100 - below the 83.1 national average - and filed 1,020 Medicare Part D claims in 2023.

21.3/100
MIPS score · -62 vs avg
1K
Part D claims, 2023
$1.5K
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.

Kenneth Choi, MD's MIPS score vs every scored U.S. clinician

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

21 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%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 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+: 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

Where Kenneth Choi, MD sits

This provider among specialist peers

Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Kenneth Choi, MD writes more Part D claims than 54% of them and scores higher on MIPS quality than 10% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 62Kenneth Choi, MD-Part D claim volume, percentile in specialty: 54 · MIPS quality, percentile: 10
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one specialist peer from a representative sample of 60; the gold marker is Kenneth Choi, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Kenneth Choi, MD?

Below national average

NPI registry status

Active

Issued 05/31/2005

NPI 1255333589

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

1,020 31% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

21.3/100 61.8 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in Arizona

How Specialist compares to other specialties among Arizona providers

Arizona providers

Largest specialties in Arizona (% of in-state providers)

Pharmacist - 5.6%Pharmacist5.6%Behavior Technician - 5.6%Behavior Technician5.6%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4.2%Physical Therapist4.2%Speech-Language Pathologist - 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program - 3.5%Student in an Organized Health Care Education/Training Program3.5%Specialist - 0.8%Specialist0.8%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance, MIPS

Kenneth Choi, MD's 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
21.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) - 21.3/100 vs national avg 83.1

0%100%National avg83%21.3%
MIPS final score (Specialist) - 21.3/100 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).

Kenneth Choi, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 2260 W ORANGE GROVE RD, Tucson, AZ, 85741, with a listed phone of (520) 795-5830. NPI 1255333589 was issued on 05/31/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Choi 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 1,020 prescription claims written by this provider, covering 290 Medicare beneficiaries and totaling roughly $26K in drug spend, with an opioid prescribing rate of 9.2%. 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 21.3/100 for the 2023 performance year (Quality 0, Cost 71.1), compared with the national average of 83.1.

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

2260 W ORANGE GROVE RD
Tucson, AZ 85741

Provider Details

NPI 1255333589
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 05/31/2005

CMS Quality Score (MIPS)

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

21.3246
Final Score
Avg: 83.1
0
Quality
71.082
Cost

Reporting: Individual

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 Kenneth Choi, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.5K

Largest payer

Teleflex 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.

1,020
Total Claims
$26K
Total Drug Cost
290
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,785
Total Day Supply
45,392
Generic Drug Cost
$16K
Opioid Claims
94 (9.2% rate)
Antibiotic Claims
296

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.03
Gender Split
12% female / 88% male

Top Prescribed Drugs (Medicare Part D)

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

What Kenneth Choi, MD 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
Ciprofloxacin Hcl
162
Anastrozole
141
Testosterone Cypionate
127
Tamsulosin Hcl
115
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
93
Oxybutynin Chloride
82
Finasteride
68
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
50
Cephalexin
35
Ibuprofen
28

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

Specialist Overview

How Kenneth Choi, MD fits within the Specialist landscape nationally.

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

Kenneth Choi, MD's 1,020 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Arizona

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Arizona medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Specialist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Kenneth Choi, MD's specialty?
Kenneth Choi, MD specializes in Specialist and practices in Tucson, Arizona. Credentials: MD.
How much does Kenneth Choi, MD prescribe under Medicare Part D?
In 2023, Kenneth Choi, MD wrote 1,020 Medicare Part D claims totaling $26K in drug costs for 290 beneficiaries.
What is Kenneth Choi, MD's Medicare quality score?
Kenneth Choi, MD has a CMS MIPS Final Score of 21.3/100 (Quality: 0, Cost: 71.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kenneth Choi, MD located?
Kenneth Choi, MD is located at 2260 W ORANGE GROVE RD, Tucson, AZ, 85741. Phone: (520) 795-5830.
What is Kenneth Choi, MD's NPI number?
Kenneth Choi, MD's National Provider Identifier (NPI) is 1255333589, issued on 05/31/2005.
Does Kenneth Choi, MD prescribe opioids?
Yes, Kenneth Choi, MD had 94 opioid claims in 2023 with an opioid prescribing rate of 9.2%.
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.
What drugs does Kenneth Choi, MD prescribe most often?
Based on 2023 Medicare Part D data, Kenneth Choi, MD's most frequently prescribed drugs include Ciprofloxacin Hcl, Anastrozole, Testosterone Cypionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kenneth Choi, MD accept Medicare?
Kenneth Choi, MD appears in CMS Medicare data with 1,020 Part D claims and 290 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kenneth Choi, MD's credentials?
Kenneth Choi, MD's NPI is 1255333589 with credentials MD. 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

Compiled from official public sources by the PlainDoctor editorial team.