2026 NPPES data Transplant Surgery Physician NPI 1588738512 MD
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Alan Cheung, MD

Transplant Surgery Physician in Honolulu, Hawaii. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,026 in Transplant Surgery Physician, 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
137
Medicare Part D claims · 40 beneficiaries · Transplant Surgery Physician avg: 275
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$178.28
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Alan Cheung, MD filed 137 Medicare Part D claims in 2023 as a Transplant Surgery Physician in Honolulu, Hawaii, prescribing 88% generic.

137
Part D claims, 2023
88%
generic prescribing
$178.28
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.

Alan Cheung, MD's Medicare Part D volume vs every U.S. prescriber

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

137 35th percentile higher than 35% 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. 2K+: 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

Board-eligible specialty (heuristic, not verified)

Alan Cheung, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Alan Cheung, MD?

Quality data not reported

NPI registry status

Active

Issued 11/20/2006

NPI 1588738512

Primary specialty

Transplant Surgery Physician

Niche

1,026 US NPIs in this specialty

Medicare Part D claims

137 50% vs specialty avg

2023 prescription claims

Specialty avg: 275

Specialty distribution in Hawaii

How Transplant Surgery Physician compares to other specialties among Hawaii providers

Hawaii providers

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

Behavior Technician - 16.4%Behavior Technician16.4%Massage Therapist - 4.3%Massage Therapist4.3%Physical Therapist - 3.7%Physical Therapist3.7%Pharmacist - 3.7%Pharmacist3.7%Mental Health Counselor - 3.1%Mental Health Counselor3.1%Internal Medicine Physician - 3.1%Internal Medicine Physician3.1%Transplant Surgery Physician - 0%Transplant Surgery Physician0%
Largest specialties in Hawaii (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Transplant Surgery Physician. Verify directly:

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).

Alan Cheung, MD appears in the CMS NPPES registry as a Transplant Surgery Physician provider holding MD credentials at 2226 LILIHA STREET, Honolulu, HI, 96817, with a listed phone of (808) 523-0166. NPI 1588738512 was issued on 11/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Cheung 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 137 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $8K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 15.3%. 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.

Transplant Surgery Physician is a narrow specialty nationwide, with 1,026 enrolled providers across 48 states and an average of 275 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

2226 LILIHA STREET
Honolulu, HI 96817

Provider Details

NPI 1588738512
Specialty Transplant Surgery Physician
Credentials MD
Gender Male
NPI Issued 11/20/2006

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 Alan Cheung, MD. Source: openpaymentsdata.cms.gov.

Total received

$178

Largest payer

SANOFI-AVENTIS U.S. 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.

Brand vs generic prescribing mix · Typical

Alan Cheung, MD - brand share 12.0%
Transplant Surgery Physician average

12% brand-name claims vs 88% generic, on 137 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

137
Total Claims
$8K
Total Drug Cost
40
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
192
Total Day Supply
4,786
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$344
Generic Drug Cost
$7K
Opioid Claims
21 (15.3% rate)
Antibiotic Claims
22

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
2.87
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What Alan Cheung, 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
Levothyroxine Sodium
32
Tramadol Hcl
18
Pantoprazole Sodium
14
Tamoxifen Citrate
12

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

Transplant Surgery Physician Overview

How Alan Cheung, MD fits within the Transplant Surgery Physician landscape nationally.

1,026
Transplant Surgery Physician Providers in US
48
States with Transplant Surgery Physician
275
Avg Claims per Provider

Alan Cheung, MD's 137 claims are below the specialty average of 275.

Nearby Transplant Surgery Physician Providers in Hawaii

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

Compare Transplant Surgery Physician 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 Hawaii medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Transplant Surgery Physician 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 Alan Cheung, MD's specialty?
Alan Cheung, MD specializes in Transplant Surgery Physician and practices in Honolulu, Hawaii. Credentials: MD.
How much does Alan Cheung, MD prescribe under Medicare Part D?
In 2023, Alan Cheung, MD wrote 137 Medicare Part D claims totaling $8K in drug costs for 40 beneficiaries.
Where is Alan Cheung, MD located?
Alan Cheung, MD is located at 2226 LILIHA STREET, Honolulu, HI, 96817. Phone: (808) 523-0166.
What is Alan Cheung, MD's NPI number?
Alan Cheung, MD's National Provider Identifier (NPI) is 1588738512, issued on 11/20/2006.
Does Alan Cheung, MD prescribe more brand-name or generic drugs?
Alan Cheung, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $344 in brand drug costs.
Does Alan Cheung, MD prescribe opioids?
Yes, Alan Cheung, MD had 21 opioid claims in 2023 with an opioid prescribing rate of 15.3%.
How many Transplant Surgery Physician providers are there in the US?
There are 1,026 Transplant Surgery Physician providers across 48 states in the US. The average Transplant Surgery Physician provider writes 275 Medicare Part D claims per year.
What drugs does Alan Cheung, MD prescribe most often?
Based on 2023 Medicare Part D data, Alan Cheung, MD's most frequently prescribed drugs include Levothyroxine Sodium, Tramadol Hcl, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alan Cheung, MD accept Medicare?
Alan Cheung, MD appears in CMS Medicare data with 137 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alan Cheung, MD's credentials?
Alan Cheung, MD's NPI is 1588738512 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.
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.