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Critical Care (Intensivists)

Brent J. Matsuda, MD

Works at hospitals in Hilo, HI · Kamuela, HI · Honolulu, HI · Hawaii

Summary

Dr. Brent J. Matsuda, MD is a critical care doctor at 1301 Punchbowl St, Honolulu, HI 96813. Phone: (808) 881-4400. Accepts Medicare assignment. In 2024, Brent J. Matsuda had 198 Original Medicare patients and 557 services. NPI 1689934606. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Brent J. Matsuda, 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 Brent J. Matsuda accept Medicare assignment?
Yes. Medicare's clinician data says Brent J. Matsuda 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 Brent J. Matsuda see?
In 2024, CMS data shows 198 Original Medicare patients and 557 services for Brent J. Matsuda. This counts Original Medicare only and measures volume, not quality.
What is Brent J. Matsuda's NPI number?
1689934606. 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 Brent J. Matsuda, 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 patients198
Services billed to Medicare557
Different services or procedures33
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)247 services
  2. Critical care, first 30-74 minutes (99291)58 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)42 services
  4. Test to examine how well the lungs exchange gases (94729)25 services
  5. Test to measure expiratory airflow and volume changes before and after medication administration (94060)21 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 disease51%
  • Diabetes47%
  • Ischemic heart disease47%
  • COPD45%

Hospitals where Brent J. Matsuda works

Medicare's Facility Affiliation Data lists Brent J. Matsuda 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.

Practice locations

Addresses where Brent J. Matsuda is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brent J. Matsuda as a member of these groups (CMS data updated October 2, 2026).

  • Queens University Medical Group614 clinicians in the group
  • Queens North Hawaii Community Hospital108 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Hawaii →

Other critical care doctors in Honolulu

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

All critical care doctors in Honolulu →

Other clinicians in Queens University Medical Group

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 year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1689934606
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