NPPES file of Aug 9, 2026

Leon Matsuo, MD

Internal Medicine Physician · Captain Cook, HI

Leon Matsuo, MD is an internal medicine physician with a practice address in Captain Cook, Hawaii, and NPI 1235334947, issued on Jun 21, 2007. Check the license (Hawaii MD-16101, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235334947
Name
Leon Matsuo
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD-16101 HI
Self-reported in NPPES; status is on the state search
Practice location
82-6066 Mamalahoa Hwy Ste 14, Captain Cook, HI 96704
Phone
(808) 825-6557
Enumerated
Jun 21, 2007
Record last updated
Feb 19, 2026
Fax
(808) 731-6511
Medicare enrollment
Enrolled (PECOS I20110802000814); accepts Medicare assignment
Medical or professional school
University Of Hawaii John A. Burns School Of Medicine, 2007
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Leon Matsuo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license MD-16101
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Hawaii license search

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21% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,512 Medicare Part D claims for 236 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 73 claims were for opioids.

  1. Leon Matsuo2,512
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate132 claims
  2. Atorvastatin Calcium127 claims
  3. Losartan Potassium105 claims
  4. Levothyroxine Sodium88 claims
  5. Metformin Hcl74 claims
  6. Albuterol Sulfate Hfa73 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

1 internal medicine physician records list a practice address in Captain Cook

They are 1 of the 33 NPPES records with a practice address in Captain Cook, and 902 internal medicine physician records in Hawaii.

Other internal medicine physician records in Hawaii

  1. Carlos Abeyta, MDHilo, HI1942253109
  2. Harry Acuna, MDWaipahu, HI1598872707
  3. Dale Adams, MDKailua, HI1982709101
  4. Kevin Adams, MDHonolulu, HI1275640567
  5. Kyan Renie AgbayaniHonolulu, HI1083101323
  6. Wesam Agha, DOKealakekua, HI1700273554
  7. Akua Agyeman, MD PHDHonolulu, HI1831377688
  8. Timothy Ahu, MDAiea, HI1275611204
  9. Gerard Akaka, M.D.Honolulu, HI1285644658
  10. Sumi Akter, MDTripler Army Medical Center, HI1154107415

Common questions

What is Leon Matsuo, MD's NPI number?

Leon Matsuo, MD's National Provider Identifier (NPI) is 1235334947, issued on Jun 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leon Matsuo, MD located?

The NPPES record lists a practice address at 82-6066 Mamalahoa Hwy Ste 14, Captain Cook, HI, 96704. Phone: (808) 825-6557. Providers update this record themselves, so call before visiting.

How can I verify Leon Matsuo, MD's license?

NPPES lists Hawaii license number MD-16101, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Leon Matsuo, MD prescribe under Medicare Part D?

In 2024, Leon Matsuo, MD had 2,512 Medicare Part D claims for 236 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.