2026 NPPES data Emergency Medicine Physician NPI 1427122613 MD
Verify on CMS →

WOOYOUNG CHUNG, MD

Emergency 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
20
Medicare Part D claims · 17 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data reveals: WOOYOUNG CHUNG, MD is a Emergency Medicine Physician ([object Object]) practicing in HONOLULU, Hawaii with a Medicare Part D prescribing footprint of 20 claims across 17 beneficiaries .

What stands out: WOOYOUNG CHUNG, MD filed 20 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)

WOOYOUNG CHUNG, 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).

WOOYOUNG CHUNG, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/20/2006

NPI 1427122613

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

20 94% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Hawaii

How Emergency Medicine Physician compares to other specialties among Hawaii providers

Hawaii providers

Emergency Medicine Physician share within Hawaii

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Emergency 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).

WOOYOUNG CHUNG, MD is a Emergency Medicine Physician provider practicing in HONOLULU, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1427122613. 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.

WOOYOUNG CHUNG, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 1585 KAPIOLANI BLVD STE 1740, HONOLULU, HI, 96814, with a listed phone of (808) 949-8346. NPI 1427122613 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 CHUNG 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 20 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $152 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

1585 KAPIOLANI BLVD STE 1740
HONOLULU, HI 96814

Provider Details

NPI 1427122613
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 11/20/2006

Medicare Part D Prescribing Data

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

20
Total Claims
$152
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
20
Total Day Supply
148
Brand Drug Cost
$0
Generic Drug Cost
$152
Antibiotic Claims
16

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
0.66

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Cephalexin
12

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

Emergency Medicine Physician Overview

How WOOYOUNG CHUNG, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

WOOYOUNG CHUNG, MD's 20 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Hawaii

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WOOYOUNG CHUNG, MD's specialty?
WOOYOUNG CHUNG, MD specializes in Emergency Medicine Physician and practices in HONOLULU, Hawaii. Credentials: MD.
How much does WOOYOUNG CHUNG, MD prescribe under Medicare Part D?
In 2023, WOOYOUNG CHUNG, MD wrote 20 Medicare Part D claims totaling $152 in drug costs for 17 beneficiaries.
Where is WOOYOUNG CHUNG, MD located?
WOOYOUNG CHUNG, MD is located at 1585 KAPIOLANI BLVD STE 1740, HONOLULU, HI, 96814. Phone: (808) 949-8346.
What is WOOYOUNG CHUNG, MD's NPI number?
WOOYOUNG CHUNG, MD's National Provider Identifier (NPI) is 1427122613, issued on 11/20/2006.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does WOOYOUNG CHUNG, MD prescribe most often?
Based on 2023 Medicare Part D data, WOOYOUNG CHUNG, MD's most frequently prescribed drugs include Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WOOYOUNG CHUNG, MD accept Medicare?
WOOYOUNG CHUNG, MD appears in CMS Medicare data with 20 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WOOYOUNG CHUNG, MD's credentials?
WOOYOUNG CHUNG, MD's NPI is 1427122613 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