NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1730238775 M.D.
Verify on CMS → Ernie Yim, M.D.
Pulmonary Disease 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 9,271 in Pulmonary Disease 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
1K
Medicare Part D claims · 161 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
71%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.1K
55 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ernie Yim, M.D. filed 1,207 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Honolulu, Hawaii, prescribing 71% generic.
- 1K
- Part D claims, 2023
- 71%
- generic prescribing
- $2.1K
- 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.
Ernie Yim, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,207 Top 22% higher than 78% of 1,370,886 prescribers
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)
Ernie Yim, 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).
What does the federal data show about Ernie Yim, M.D.?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
1,207 17% vs specialty avg
Specialty distribution in Hawaii
How Pulmonary Disease Physician compares to other specialties among Hawaii 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 Pulmonary Disease Physician. Verify directly:
How MIPS and board certification work
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).
Ernie Yim, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 2228 LILIHA ST, Honolulu, HI, 96817, with a listed phone of (808) 533-1372. NPI 1730238775 was issued on 01/09/2007.
Medicare Part D records for calendar year 2023 show 1,207 prescription claims written by this provider, covering 161 Medicare beneficiaries and totaling roughly $370K in drug spend, split 27% brand-name and 71% generic by claim count.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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
Provider Details
| NPI | 1730238775 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/09/2007 |
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 Ernie Yim, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.1K
Largest payer
AstraZeneca Pharmaceuticals LP
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 · Above average
Ernie Yim, M.D. - brand share 27.0%
Pulmonary Disease Physician average
27% brand-name claims vs 71% generic, on 1,207 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.
1,207
Total Claims
$370K
Total Drug Cost
161
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,587
- Total Day Supply
- 73,517
- Brand vs Generic
- 27% brand / 71% generic
- Brand Drug Cost
- $337K
- Generic Drug Cost
- $32K
- Antibiotic Claims
- 106
Patient Demographics
- Average Patient Age
- 75.9 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 48% female / 52% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ernie Yim, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
94 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
92 claims
- Atorvastatin Calcium
Atorvastatin Calcium
80 claims
- Prednisone
Prednisone
77 claims
- Symbicort
Symbicort
68 claims
- Azithromycin
Azithromycin
47 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
43 claims
- Trelegy Ellipta 32
Trelegy Ellipta
32 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 94 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 92 |
| Atorvastatin Calcium | 80 |
| Prednisone | 77 |
| Symbicort Budesonide/Formoterol Fumarate | 68 |
| Azithromycin | 47 |
| Rosuvastatin Calcium | 43 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 32 |
| Losartan Potassium | 31 |
| Levofloxacin | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Ernie Yim, M.D. fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Ernie Yim, M.D.'s 1,207 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Yim.
Dr. John Beamis
MD
Honolulu, HI
Dr. Benjamin Berg
MD
Honolulu, HI
Dr. Julie Chang
MD
Honolulu, HI
Dr. Eric Crawley
M.D.
Honolulu, HI
Dr. Nestor Isidro Del Rosario
M.D.
Waipahu, HI
Compare Pulmonary Disease 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 Pulmonary Disease 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
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Frequently Asked Questions
What is Ernie Yim, M.D.'s specialty? ▼
Ernie Yim, M.D. specializes in Pulmonary Disease Physician and practices in Honolulu, Hawaii. Credentials: M.D..
How much does Ernie Yim, M.D. prescribe under Medicare Part D? ▼
In 2023, Ernie Yim, M.D. wrote 1,207 Medicare Part D claims totaling $370K in drug costs for 161 beneficiaries.
Where is Ernie Yim, M.D. located? ▼
Ernie Yim, M.D. is located at 2228 LILIHA ST, Honolulu, HI, 96817. Phone: (808) 533-1372.
What is Ernie Yim, M.D.'s NPI number? ▼
Ernie Yim, M.D.'s National Provider Identifier (NPI) is 1730238775, issued on 01/09/2007.
Does Ernie Yim, M.D. prescribe more brand-name or generic drugs? ▼
Ernie Yim, M.D.'s prescribing is 27% brand-name and 71% generic drugs by claim count, with $337K in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Ernie Yim, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ernie Yim, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Albuterol Sulfate Hfa, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ernie Yim, M.D. accept Medicare? ▼
Ernie Yim, M.D. appears in CMS Medicare data with 1,207 Part D claims and 161 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ernie Yim, M.D.'s credentials? ▼
Ernie Yim, M.D.'s NPI is 1730238775 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
View source datasets and methodology notes
- 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.