NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1528183217 MD
Verify on CMS → Guy Yatsushiro, MD
Internal Medicine 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 172,858 in Internal Medicine 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
5K
Medicare Part D claims · 391 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
53.9/100
▼ 29 pts below national avg 83.1 · Mid-tier
Industry payments
$2.4K
89 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
Guy Yatsushiro, MD reported a CMS MIPS final score of 53.9/100 - below the 83.1 national average - and filed 4,728 Medicare Part D claims in 2023.
- 53.9/100
- MIPS score · -29 vs avg
- 5K
- Part D claims, 2023
- 82%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Guy Yatsushiro, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
54 5th percentile higher than 5% of 477,587 scored providers
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 Guy Yatsushiro, MD sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Guy Yatsushiro, MD writes more Part D claims than 79% of them and scores higher on MIPS quality than 6% - 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
Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Guy Yatsushiro, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Guy Yatsushiro, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Guy Yatsushiro, MD?
Below national averagePrimary specialty
Internal Medicine Physician
Medicare Part D claims
4,728 74% vs specialty avg
MIPS final score
53.9/100 29.2 pts vs avg
Specialty distribution in Hawaii
How Internal Medicine Physician compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
Guy Yatsushiro, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 53.9/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 53.9/100 vs national avg 83.1
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).
Guy Yatsushiro, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1914 SOUTH KING STREET, Honolulu, HI, 96826, with a listed phone of (808) 946-7159. NPI 1528183217 was issued on 03/20/2007.
Medicare Part D records for calendar year 2023 show 4,728 prescription claims written by this provider, covering 391 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 16% brand-name and 82% generic by claim count, with an opioid prescribing rate of 1.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 53.9/100 for the 2023 performance year (Quality 90, Cost 59.6), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1528183217 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/20/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
53.8855
Final Score
Avg: 83.1
90
Quality
59.6185
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 Guy Yatsushiro, MD. Source: openpaymentsdata.cms.gov.
Total received
$2.4K
Largest payer
Amgen Inc.
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
Guy Yatsushiro, MD - brand share 16.0%
Internal Medicine Physician average
16% brand-name claims vs 82% generic, on 4,728 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.
4,728
Total Claims
$1.4M
Total Drug Cost
391
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,511
- Total Day Supply
- 338,987
- Brand vs Generic
- 16% brand / 82% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $143K
- Opioid Claims
- 75 (1.6% rate)
- Antibiotic Claims
- 78
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 1.19
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Guy Yatsushiro, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
475 claims
- Telmisartan
Telmisartan
430 claims
- Amlodipine Besylate
Amlodipine Besylate
272 claims
- Rosuvastatin Calcium 168
Rosuvastatin Calcium
168 claims
- Metformin Hcl Er 136
Metformin Hcl Er
136 claims
- Pravastatin Sodium 116
Pravastatin Sodium
116 claims
- Vascepa 115
Vascepa
115 claims
- Levothyroxine Sodium 114
Levothyroxine Sodium
114 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 475 |
| Telmisartan | 430 |
| Amlodipine Besylate | 272 |
| Rosuvastatin Calcium | 168 |
| Metformin Hcl Er Metformin Hcl | 136 |
| Pravastatin Sodium | 116 |
| Vascepa Icosapent Ethyl | 115 |
| Levothyroxine Sodium | 114 |
| Metformin Hcl | 112 |
| Olmesartan Medoxomil | 112 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Guy Yatsushiro, MD fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Guy Yatsushiro, MD's 4,728 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Yatsushiro.
Dr. Michael Abdo
M.D.
Ewa Beach, HI
Dr. Carlos Abeyta
MD
Hilo, HI
Dr. Harry Acuna
MD
Waipahu, HI
Dr. Dale Adams
MD
Kailua, HI
Dr. Kevin Adams
MD
Honolulu, HI
Compare Internal Medicine 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 Internal Medicine 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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How insurance networks affect your costs
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Frequently Asked Questions
What is Guy Yatsushiro, MD's specialty? ▼
Guy Yatsushiro, MD specializes in Internal Medicine Physician and practices in Honolulu, Hawaii. Credentials: MD.
How much does Guy Yatsushiro, MD prescribe under Medicare Part D? ▼
In 2023, Guy Yatsushiro, MD wrote 4,728 Medicare Part D claims totaling $1.4M in drug costs for 391 beneficiaries.
What is Guy Yatsushiro, MD's Medicare quality score? ▼
Guy Yatsushiro, MD has a CMS MIPS Final Score of 53.9/100 (Quality: 90, Cost: 59.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Guy Yatsushiro, MD located? ▼
Guy Yatsushiro, MD is located at 1914 SOUTH KING STREET, Honolulu, HI, 96826. Phone: (808) 946-7159.
What is Guy Yatsushiro, MD's NPI number? ▼
Guy Yatsushiro, MD's National Provider Identifier (NPI) is 1528183217, issued on 03/20/2007.
Does Guy Yatsushiro, MD prescribe more brand-name or generic drugs? ▼
Guy Yatsushiro, MD's prescribing is 16% brand-name and 82% generic drugs by claim count, with $1.2M in brand drug costs.
Does Guy Yatsushiro, MD prescribe opioids? ▼
Yes, Guy Yatsushiro, MD had 75 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Guy Yatsushiro, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Guy Yatsushiro, MD's most frequently prescribed drugs include Atorvastatin Calcium, Telmisartan, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Guy Yatsushiro, MD accept Medicare? ▼
Guy Yatsushiro, MD appears in CMS Medicare data with 4,728 Part D claims and 391 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Guy Yatsushiro, MD's credentials? ▼
Guy Yatsushiro, MD's NPI is 1528183217 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
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.
- 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.