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General Surgery

John H. Matsuura, MD

Works at hospitals in Hilo, HI · Hawaii

Summary

Dr. John H. Matsuura, MD is a general surgeon at 1190 Waianuenue Ave, Hilo, HI 96720. Phone: (808) 932-3000. Accepts Medicare assignment. In 2024, John H. Matsuura had 58 Original Medicare patients and 159 services. NPI 1770591562. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 1190 Waianuenue Ave, Hilo, HI 96720 · Directions (1 more location)
  • Phone: (808) 932‑3000
  • Medicare: Accepts Medicare assignment
  • Hospital: Hilo Benioff Medical Center
  • Group practice: Kau Hospital (+1 more)
  • Medical school: University Of Hawaii John A. Burns School Of Medicine · graduated 1987 (39 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about John H. Matsuura, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does John H. Matsuura accept Medicare assignment?
Yes. Medicare's clinician data says John H. Matsuura accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does John H. Matsuura see?
In 2024, CMS data shows 58 Original Medicare patients and 159 services for John H. Matsuura. This counts Original Medicare only and measures volume, not quality.
What is John H. Matsuura's NPI number?
1770591562. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for John H. Matsuura, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients58
Services billed to Medicare159
Different services or procedures46
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Ultrasonic guidance for blood vessel access (76937)32 services
  2. Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist (36902)19 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Chronic kidney disease75%
  • Diabetes60%
  • Ischemic heart disease57%
  • Heart failure57%

Hospitals where John H. Matsuura works

Medicare's Facility Affiliation Data lists John H. Matsuura at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Hilo Benioff Medical CenterHilo, HI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 120005

Practice locations

Addresses where John H. Matsuura is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John H. Matsuura as a member of these groups (CMS data updated October 2, 2026).

  • Kau Hospital140 clinicians in the group
  • Hilo Benioff Medical Center129 clinicians in the group

Specialties

Find other General Surgery doctors in Hawaii →

Other general surgeons in Hilo

Clinicians with the same Medicare primary specialty in Hilo, HI — not a recommendation.

All general surgeons in Hilo →

Other clinicians in Kau Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Hawaii John A. Burns School Of Medicine
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770591562
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians