NPI registry status
Active
2026 NPPES data Pediatrics Physician NPI 1235334947 MD
Verify on CMS → Leon Matsuo, MD
Pediatrics Physician in Captain Cook, 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 80,576 in Pediatrics 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
3K
Medicare Part D claims · 259 beneficiaries · Pediatrics Physician avg: 762
Generic prescribing
84%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Leon Matsuo, MD filed 2,523 Medicare Part D claims in 2023 as a Pediatrics Physician in Captain Cook, Hawaii, prescribing 84% generic.
- 3K
- Part D claims, 2023
- 84%
- generic prescribing
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.
Leon Matsuo, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,523 Top 13% higher than 87% 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)
Leon Matsuo, 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).
What does the federal data show about Leon Matsuo, MD?
Quality data not reportedPrimary specialty
Pediatrics Physician
Medicare Part D claims
2,523 231% vs specialty avg
Specialty distribution in Hawaii
How Pediatrics 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 Pediatrics 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).
Leon Matsuo, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 82-6066 MAMALAHOA HWY STE 14, Captain Cook, HI, 96704, with a listed phone of (808) 825-6557. NPI 1235334947 was issued on 06/21/2007.
Medicare Part D records for calendar year 2023 show 2,523 prescription claims written by this provider, covering 259 Medicare beneficiaries and totaling roughly $312K in drug spend, split 13% brand-name and 84% generic by claim count, with an opioid prescribing rate of 2.5%.
Pediatrics Physician is a high-volume specialty nationwide, with 80,576 enrolled providers across 56 states and an average of 762 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 | 1235334947 |
|---|---|
| Specialty | Pediatrics Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/21/2007 |
Brand vs generic prescribing mix · Typical
Leon Matsuo, MD - brand share 13.0%
Pediatrics Physician average
13% brand-name claims vs 84% generic, on 2,523 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.
2,523
Total Claims
$312K
Total Drug Cost
259
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,920
- Total Day Supply
- 170,496
- Brand vs Generic
- 13% brand / 84% generic
- Brand Drug Cost
- $238K
- Generic Drug Cost
- $68K
- Opioid Claims
- 64 (2.5% rate)
- Antibiotic Claims
- 105
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.02
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 16, 65-74: 153, 75-84: 66, 85+: 24
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Leon Matsuo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
161 claims
- Atorvastatin Calcium
Atorvastatin Calcium
120 claims
- Levothyroxine Sodium
Levothyroxine Sodium
107 claims
- Losartan Potassium
Losartan Potassium
93 claims
- Metformin Hcl
Metformin Hcl
77 claims
- Tamsulosin Hcl
Tamsulosin Hcl
77 claims
- Lisinopril
Lisinopril
73 claims
- Metoprolol Succinate
Metoprolol Succinate
71 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 161 |
| Atorvastatin Calcium | 120 |
| Levothyroxine Sodium | 107 |
| Losartan Potassium | 93 |
| Metformin Hcl | 77 |
| Tamsulosin Hcl | 77 |
| Lisinopril | 73 |
| Metoprolol Succinate | 71 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 59 |
| Omeprazole | 57 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatrics Physician Overview
How Leon Matsuo, MD fits within the Pediatrics Physician landscape nationally.
80,576
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider
Leon Matsuo, MD's 2,523 claims are above the specialty average of 762.
Nearby Pediatrics Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Matsuo.
Dr. Keith Abe
M.D.
Honolulu, HI
Dr. Stephanie Abe
MD
Aiea, HI
Dr. Elizabeth Abinsay
M.D.
Honolulu, HI
Dr. Hazel Abinsay
M.D.
Honolulu, HI
Dr. Leila Agullana
MD
Kapolei, HI
Compare Pediatrics 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 Pediatrics 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 Leon Matsuo, MD's specialty? ▼
Leon Matsuo, MD specializes in Pediatrics Physician and practices in Captain Cook, Hawaii. Credentials: MD.
How much does Leon Matsuo, MD prescribe under Medicare Part D? ▼
In 2023, Leon Matsuo, MD wrote 2,523 Medicare Part D claims totaling $312K in drug costs for 259 beneficiaries.
Where is Leon Matsuo, MD located? ▼
Leon Matsuo, MD is located at 82-6066 MAMALAHOA HWY STE 14, Captain Cook, HI, 96704. Phone: (808) 825-6557.
What is Leon Matsuo, MD's NPI number? ▼
Leon Matsuo, MD's National Provider Identifier (NPI) is 1235334947, issued on 06/21/2007.
Does Leon Matsuo, MD prescribe more brand-name or generic drugs? ▼
Leon Matsuo, MD's prescribing is 13% brand-name and 84% generic drugs by claim count, with $238K in brand drug costs.
Does Leon Matsuo, MD prescribe opioids? ▼
Yes, Leon Matsuo, MD had 64 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Pediatrics Physician providers are there in the US? ▼
There are 80,576 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
What drugs does Leon Matsuo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Leon Matsuo, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leon Matsuo, MD accept Medicare? ▼
Leon Matsuo, MD appears in CMS Medicare data with 2,523 Part D claims and 259 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leon Matsuo, MD's credentials? ▼
Leon Matsuo, MD's NPI is 1235334947 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.
- 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.
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.