Leon Matsuo, MD
NPI 1235334947 · Internal Medicine Physician · Captain Cook, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leon Matsuo, MD is a Internal Medicine Physician provider in Captain Cook, HI (NPI 1235334947).
Provider details
- NPI number
- 1235334947
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD-16101 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
807 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 655 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 139 | $89 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $172 |
Typical Medicare-allowed amounts for these services range $89–$172 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 132 | 41 |
| Atorvastatin Calcium | 127 | 42 |
| Losartan Potassium | 105 | 31 |
| Levothyroxine Sodium | 88 | 30 |
| Metformin Hcl | 74 | 25 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 73 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-21
- Last updated
- 2026-02-19
- Certified
- 2026-02-19
Frequently asked questions
- What is Leon Matsuo's NPI number?
- Leon Matsuo's National Provider Identifier (NPI) is 1235334947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leon Matsuo's specialty?
- Leon Matsuo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leon Matsuo located?
- Leon Matsuo's practice location on file with NPPES is 82-6066 Mamalahoa Hwy Ste 14, Captain Cook, HI 96704-8204.
- What is Leon Matsuo's phone number?
- The practice phone number listed in the NPPES registry for Leon Matsuo is (808) 825-6557.
- Does Leon Matsuo accept Medicare?
- Leon Matsuo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leon Matsuo's NPI active?
- Yes — Leon Matsuo's NPI (1235334947) is active in the NPPES registry as of the last update on 2026-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.