Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Kent M. Matsuda, MD

Works at hospitals in Petaluma, CA · Santa Rosa, CA · Sonoma, CA … · California

Summary

Dr. Kent M. Matsuda, MD is an internal medicine doctor at 4710 Hoen Ave, Santa Rosa, CA 95405. Phone: (707) 546-2506. Accepts Medicare assignment. In 2024, Kent M. Matsuda had 195 Original Medicare patients and 1,059 services. NPI 1073531117. 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 Kent M. 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 Kent M. Matsuda accept Medicare assignment?
Yes. Medicare's clinician data says Kent M. 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 Kent M. Matsuda see?
In 2024, CMS data shows 195 Original Medicare patients and 1,059 services for Kent M. Matsuda. This counts Original Medicare only and measures volume, not quality.
What is Kent M. Matsuda's NPI number?
1073531117. 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 Kent M. 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 patients195
Services billed to Medicare1,059
Different services or procedures40
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)377 services
  2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)64 services
  3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)44 services
  4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)42 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)35 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 cholesterol54%
  • Arthritis46%
  • Anxiety28%
  • Depression22%
  • Ischemic heart disease19%

Hospitals where Kent M. Matsuda works

Medicare's Facility Affiliation Data lists Kent M. 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 Kent M. Matsuda is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Santa Rosa

Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.

All internal medicine doctors in Santa Rosa →

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1073531117
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