NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1861628372 M.D.
Verify on CMS → Yoshihito Saito, M.D.
Hematology & Oncology 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 11,215 in Hematology & Oncology 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 · 214 beneficiaries · Hematology & Oncology Physician avg: 847
MIPS score
94.2/100
▲ 11 pts above national avg 83.1 · Exceptional
Industry payments
$1.4K
64 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Yoshihito Saito, M.D. reported a CMS MIPS final score of 94.2/100 - above the 83.1 national average - and filed 1,274 Medicare Part D claims in 2023.
- 94.2/100
- MIPS score · +11 vs avg
- 1K
- Part D claims, 2023
- 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.
Yoshihito Saito, 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
94 Top 25% higher than 75% 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 Yoshihito Saito, M.D. sits
This provider among hematology & oncology physician peers
Across the 4,233 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Yoshihito Saito, M.D. writes more Part D claims than 73% of them and scores higher on MIPS quality than 75% - placing this provider in the high-volume, high-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 hematology & oncology physician peer from a representative sample of 60; the gold marker is Yoshihito Saito, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Yoshihito Saito, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Yoshihito Saito, M.D.?
High performer (top quartile)Primary specialty
Hematology & Oncology Physician
Medicare Part D claims
1,274 50% vs specialty avg
MIPS final score
94.2/100 11.1 pts vs avg
Specialty distribution in Hawaii
How Hematology & Oncology Physician compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
Yoshihito Saito, M.D.'s 2023 MIPS final score plotted against the Hematology & Oncology Physician national average
- MIPS Final Score
- 94.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology & Oncology Physician) - 94.2/100 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).
Yoshihito Saito, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 1380 LUSITANA ST STE 608, Honolulu, HI, 96813, with a listed phone of (808) 532-0315. NPI 1861628372 was issued on 06/10/2009.
Medicare Part D records for calendar year 2023 show 1,274 prescription claims written by this provider, covering 214 Medicare beneficiaries and totaling roughly $2.8 million in drug spend, with an opioid prescribing rate of 6.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.2/100 for the 2023 performance year (Quality 84.3), compared with the national average of 83.1.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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 | 1861628372 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/10/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1828
Final Score
Avg: 83.1
84.2876
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Yoshihito Saito, 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.
The Queens Medical Center
★★★☆☆ 3/5
Honolulu, HI
Acute Care Hospitals
CMS CCN: 120001
Queens University Medical Group
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 Yoshihito Saito, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
Astellas Pharma US 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,274
Total Claims
$2.8M
Total Drug Cost
214
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,692
- Total Day Supply
- 41,396
- Generic Drug Cost
- $286K
- Opioid Claims
- 86 (6.8% rate)
- Antibiotic Claims
- 49
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 2.43
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 18, 65-74: 90, 75-84: 80, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yoshihito Saito, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Dexamethasone
Dexamethasone
123 claims
- Anastrozole
Anastrozole
85 claims
- Prednisone
Prednisone
70 claims
- Prochlorperazine M…
Prochlorperazine Maleate
66 claims
- Orgovyx 43
Orgovyx
43 claims
- Oxycodone Hcl 39
Oxycodone Hcl
39 claims
- Eliquis 35
Eliquis
35 claims
- Furosemide 33
Furosemide
33 claims
| Drug | Claims |
|---|---|
| Dexamethasone | 123 |
| Anastrozole | 85 |
| Prednisone | 70 |
| Prochlorperazine Maleate | 66 |
| Orgovyx Relugolix | 43 |
| Oxycodone Hcl | 39 |
| Eliquis Apixaban | 35 |
| Furosemide | 33 |
| Levothyroxine Sodium | 33 |
| Xtandi Enzalutamide | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Yoshihito Saito, M.D. fits within the Hematology & Oncology Physician landscape nationally.
11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Yoshihito Saito, M.D.'s 1,274 claims are above the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Saito.
Dr. Jared Acoba
M.D.
Honolulu, HI
Dr. William Adler
M.D.
Wailuku, HI
Dr. Devena Alston-Johnson
MD
Wailuku, HI
Dr. Ramin Altaha
MD
Wailuku, HI
Dr. Jeffrey Berenberg
MD
Tamc, HI
Compare Hematology & Oncology 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 Hematology & Oncology 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Hawaii
Frequently Asked Questions
What is Yoshihito Saito, M.D.'s specialty? ▼
Yoshihito Saito, M.D. specializes in Hematology & Oncology Physician and practices in Honolulu, Hawaii. Credentials: M.D..
How much does Yoshihito Saito, M.D. prescribe under Medicare Part D? ▼
In 2023, Yoshihito Saito, M.D. wrote 1,274 Medicare Part D claims totaling $2.8M in drug costs for 214 beneficiaries.
What is Yoshihito Saito, M.D.'s Medicare quality score? ▼
Yoshihito Saito, M.D. has a CMS MIPS Final Score of 94.2/100 (Quality: 84.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yoshihito Saito, M.D. located? ▼
Yoshihito Saito, M.D. is located at 1380 LUSITANA ST STE 608, Honolulu, HI, 96813. Phone: (808) 532-0315.
What is Yoshihito Saito, M.D.'s NPI number? ▼
Yoshihito Saito, M.D.'s National Provider Identifier (NPI) is 1861628372, issued on 06/10/2009.
Does Yoshihito Saito, M.D. prescribe opioids? ▼
Yes, Yoshihito Saito, M.D. had 86 opioid claims in 2023 with an opioid prescribing rate of 6.8%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Yoshihito Saito, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Yoshihito Saito, M.D.'s most frequently prescribed drugs include Dexamethasone, Anastrozole, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yoshihito Saito, M.D. accept Medicare? ▼
Yoshihito Saito, M.D. appears in CMS Medicare data with 1,274 Part D claims and 214 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yoshihito Saito, M.D.'s credentials? ▼
Yoshihito Saito, M.D.'s NPI is 1861628372 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
Compiled from official public sources by the PlainDoctor editorial team.