NPI registry status
Active
2026 NPPES data Vascular Surgery Physician NPI 1851323471 M.D.
Verify on CMS → Dean Sato, M.D.
Vascular 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 4,227 in Vascular 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
598
Medicare Part D claims · 173 beneficiaries · Vascular Surgery Physician avg: 205
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
23.3/100
▼ 60 pts below national avg 83.1 · Below average
Industry payments
$33.47
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Dean Sato, M.D. reported a CMS MIPS final score of 23.3/100 - below the 83.1 national average - and filed 598 Medicare Part D claims in 2023.
- 23.3/100
- MIPS score · -60 vs avg
- 598
- Part D claims, 2023
- 89%
- 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.
Dean Sato, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
23 3rd percentile higher than 3% 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 Dean Sato, M.D. sits
This provider among vascular surgery physician peers
Across the 1,336 vascular surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Dean Sato, M.D. writes more Part D claims than 94% of them and scores higher on MIPS quality than 4% - 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 vascular surgery physician peer from a representative sample of 60; the gold marker is Dean Sato, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Dean Sato, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Dean Sato, M.D.?
Below national averagePrimary specialty
Vascular Surgery Physician
Medicare Part D claims
598 192% vs specialty avg
MIPS final score
23.3/100 59.8 pts vs avg
Specialty distribution in Hawaii
How Vascular Surgery Physician compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
Dean Sato, M.D.'s 2023 MIPS final score plotted against the Vascular Surgery Physician national average
- MIPS Final Score
- 23.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular Surgery Physician) - 23.3/100 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).
Dean Sato, M.D. appears in the CMS NPPES registry as a Vascular Surgery Physician provider holding M.D. credentials at 550 S BERETANIA ST STE 505, Honolulu, HI, 96813, with a listed phone of (808) 440-0544. NPI 1851323471 was issued on 07/06/2006.
Medicare Part D records for calendar year 2023 show 598 prescription claims written by this provider, covering 173 Medicare beneficiaries and totaling roughly $57K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 13.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 23.3/100 for the 2023 performance year (Quality 0, Cost 77.7), compared with the national average of 83.1.
Vascular Surgery Physician is a narrow specialty nationwide, with 4,227 enrolled providers across 53 states and an average of 205 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 | 1851323471 |
|---|---|
| Specialty | Vascular Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/06/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
23.3016
Final Score
Avg: 83.1
0
Quality
77.672
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Dean Sato, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Hawaii Vascular And Endovascular Inc
Honolulu, HI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Dean Sato, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$33
Largest payer
Penumbra, 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
Dean Sato, M.D. - brand share 11.0%
Vascular Surgery Physician average
11% brand-name claims vs 89% generic, on 598 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.
598
Total Claims
$57K
Total Drug Cost
173
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,106
- Total Day Supply
- 27,199
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $48K
- Generic Drug Cost
- $9K
- Opioid Claims
- 79 (13.2% rate)
- Antibiotic Claims
- 157
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 3.88
- Gender Split
- 36% female / 64% male
- Age Distribution
- <65: 17, 65-74: 64, 75-84: 60, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dean Sato, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clopidogrel
Clopidogrel
127 claims
- Cilostazol
Cilostazol
126 claims
- Cephalexin
Cephalexin
66 claims
- Acetaminophen-Code… 47
Acetaminophen-Codeine
47 claims
- Eliquis 38
Eliquis
38 claims
- Ciprofloxacin Hcl 32
Ciprofloxacin Hcl
32 claims
- Oxycodone-Acetamin… 26
Oxycodone-Acetaminophen
26 claims
- Mupirocin 22
Mupirocin
22 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 127 |
| Cilostazol | 126 |
| Cephalexin | 66 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 47 |
| Eliquis Apixaban | 38 |
| Ciprofloxacin Hcl | 32 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 26 |
| Mupirocin | 22 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 21 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Surgery Physician Overview
How Dean Sato, M.D. fits within the Vascular Surgery Physician landscape nationally.
4,227
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
205
Avg Claims per Provider
Dean Sato, M.D.'s 598 claims are above the specialty average of 205.
Nearby Vascular Surgery Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Sato.
Dr. Michael Caps
MD
Honolulu, HI
Dr. Justin Galovich
MD
Honolulu, HI
Dr. Selena Goss
MA, MD
Honolulu, HI
Jessica Green
Honolulu, HI
Dr. James Greig
MD FACS
Honolulu, HI
Compare Vascular 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 Vascular 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.
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Frequently Asked Questions
What is Dean Sato, M.D.'s specialty? ▼
Dean Sato, M.D. specializes in Vascular Surgery Physician and practices in Honolulu, Hawaii. Credentials: M.D..
How much does Dean Sato, M.D. prescribe under Medicare Part D? ▼
In 2023, Dean Sato, M.D. wrote 598 Medicare Part D claims totaling $57K in drug costs for 173 beneficiaries.
What is Dean Sato, M.D.'s Medicare quality score? ▼
Dean Sato, M.D. has a CMS MIPS Final Score of 23.3/100 (Quality: 0, Cost: 77.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Dean Sato, M.D. located? ▼
Dean Sato, M.D. is located at 550 S BERETANIA ST STE 505, Honolulu, HI, 96813. Phone: (808) 440-0544.
What is Dean Sato, M.D.'s NPI number? ▼
Dean Sato, M.D.'s National Provider Identifier (NPI) is 1851323471, issued on 07/06/2006.
Does Dean Sato, M.D. prescribe more brand-name or generic drugs? ▼
Dean Sato, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $48K in brand drug costs.
Does Dean Sato, M.D. prescribe opioids? ▼
Yes, Dean Sato, M.D. had 79 opioid claims in 2023 with an opioid prescribing rate of 13.2%.
How many Vascular Surgery Physician providers are there in the US? ▼
There are 4,227 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 205 Medicare Part D claims per year.
What drugs does Dean Sato, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Dean Sato, M.D.'s most frequently prescribed drugs include Clopidogrel, Cilostazol, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dean Sato, M.D. accept Medicare? ▼
Dean Sato, M.D. appears in CMS Medicare data with 598 Part D claims and 173 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dean Sato, M.D.'s credentials? ▼
Dean Sato, M.D.'s NPI is 1851323471 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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.