2026 NPPES data Sports Medicine (Internal Medicine) Physician NPI 1477544468 M.D.
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DAVEN CHUN, M.D.

Sports Medicine (Internal Medicine) Physician in HONOLULU, Hawaii. 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
4K
Medicare Part D claims · 270 beneficiaries · Sports Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$15.89
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVEN CHUN, M.D. is a Sports Medicine (Internal Medicine) Physician ([object Object]) practicing in HONOLULU, Hawaii with a Medicare Part D prescribing footprint of 4K claims across 270 beneficiaries — 18% brand-name prescribing . Industry payments of $15.89 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVEN CHUN, M.D. filed 3,611 Medicare Part D claims in 2023 across HONOLULU, Hawaii. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DAVEN CHUN, M.D. 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).

DAVEN CHUN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/31/2005

NPI 1477544468

Primary specialty

Sports Medicine (Internal Medicine) Physician

Rare

292 US NPIs in this specialty

Medicare Part D claims

3,611 185% vs specialty avg

2023 prescription claims

Specialty avg: 1,267

Specialty distribution in Hawaii

How Sports Medicine (Internal Medicine) Physician compares to other specialties among Hawaii providers

Hawaii providers

Sports Medicine (Internal Medicine) Physician share within Hawaii

1. Sports Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sports Medicine (Internal Medicine) Physician share within Hawaii

Specialty board-certification context

Estimated specialty board-certified rate — Sports Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sports Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Sports Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sports Medicine (Internal Medicine) Physician) — 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).

DAVEN CHUN, M.D. is a Sports Medicine (Internal Medicine) Physician provider practicing in HONOLULU, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1477544468. 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.

DAVEN CHUN, M.D. appears in the CMS NPPES registry as a Sports Medicine (Internal Medicine) Physician provider holding M.D. credentials at 321 N KUAKINI ST, HONOLULU, HI, 96817, with a listed phone of (808) 533-4274. NPI 1477544468 was issued on 10/31/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHUN 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 3,611 prescription claims written by this provider, covering 270 Medicare beneficiaries and totaling roughly $869K in drug spend, split 18% brand-name and 82% generic by claim count. 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.

Sports Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 292 enrolled providers across 43 states and an average of 1,267 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

321 N KUAKINI ST
HONOLULU, HI 96817

Provider Details

NPI 1477544468
Specialty Sports Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 10/31/2005

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 DAVEN CHUN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Lilly USA, 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

DAVEN CHUN, M.D. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 3,611 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.

3,611
Total Claims
$869K
Total Drug Cost
270
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,170
Total Day Supply
271,006
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$732K
Generic Drug Cost
$134K
Antibiotic Claims
61

Patient Demographics

Average Patient Age
79.1 years
Avg HCC Risk Score
1.24
Gender Split
50% female / 50% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
308
Amlodipine Besylate
205
Levothyroxine Sodium
139
Simvastatin
125
Amlodipine Besylate-Benazepril
Amlodipine Besylate/Benazepril
108
Montelukast Sodium
99
Losartan Potassium
88
Metoprolol Succinate
88
Famotidine
77
Jardiance
Empagliflozin
72

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

Sports Medicine (Internal Medicine) Physician Overview

How DAVEN CHUN, M.D. fits within the Sports Medicine (Internal Medicine) Physician landscape nationally.

292
Sports Medicine (Internal Medicine) Physician Providers in US
43
States with Sports Medicine (Internal Medicine) Physician
1,267
Avg Claims per Provider

DAVEN CHUN, M.D.'s 3,611 claims are above the specialty average of 1,267.

Nearby Sports Medicine (Internal Medicine) Physician Providers in Hawaii

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

Compare Sports Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVEN CHUN, M.D.'s specialty?
DAVEN CHUN, M.D. specializes in Sports Medicine (Internal Medicine) Physician and practices in HONOLULU, Hawaii. Credentials: M.D..
How much does DAVEN CHUN, M.D. prescribe under Medicare Part D?
In 2023, DAVEN CHUN, M.D. wrote 3,611 Medicare Part D claims totaling $869K in drug costs for 270 beneficiaries.
Where is DAVEN CHUN, M.D. located?
DAVEN CHUN, M.D. is located at 321 N KUAKINI ST, HONOLULU, HI, 96817. Phone: (808) 533-4274.
What is DAVEN CHUN, M.D.'s NPI number?
DAVEN CHUN, M.D.'s National Provider Identifier (NPI) is 1477544468, issued on 10/31/2005.
Does DAVEN CHUN, M.D. prescribe more brand-name or generic drugs?
DAVEN CHUN, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $732K in brand drug costs.
How many Sports Medicine (Internal Medicine) Physician providers are there in the US?
There are 292 Sports Medicine (Internal Medicine) Physician providers across 43 states in the US. The average Sports Medicine (Internal Medicine) Physician provider writes 1,267 Medicare Part D claims per year.
What drugs does DAVEN CHUN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVEN CHUN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVEN CHUN, M.D. accept Medicare?
DAVEN CHUN, M.D. appears in CMS Medicare data with 3,611 Part D claims and 270 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVEN CHUN, M.D.'s credentials?
DAVEN CHUN, M.D.'s NPI is 1477544468 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