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Internal Medicine

Takeshi Matsumoto, MD

Works at hospitals in Los Angeles, CA · California

Summary

Dr. Takeshi Matsumoto, MD is an internal medicine doctor at 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033. Accepts Medicare assignment. In 2024, Takeshi Matsumoto had 325 Original Medicare patients and 1,977 services. NPI 1104856186. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Adventist Health White Memorial
  • Group practice: White Memorial Medical Center
  • Medical school: graduated 1974 (52 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Takeshi Matsumoto, 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 Takeshi Matsumoto accept Medicare assignment?
Yes. Medicare's clinician data says Takeshi Matsumoto 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 Takeshi Matsumoto see?
In 2024, CMS data shows 325 Original Medicare patients and 1,977 services for Takeshi Matsumoto. This counts Original Medicare only and measures volume, not quality.
What is Takeshi Matsumoto's NPI number?
1104856186. 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 Takeshi Matsumoto, 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 patients325
Services billed to Medicare1,977
Different services or procedures25
Participating Medicare providerYes
Average age of these patients81

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)685 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)343 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)327 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)214 services
  5. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)103 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 cholesterol75%
  • High blood pressure70%
  • Arthritis36%
  • Diabetes34%
  • Ischemic heart disease27%
  • Osteoporosis26%

Hospitals where Takeshi Matsumoto works

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

Group practices

Medicare enrollment lists Takeshi Matsumoto as a member of this group (CMS data updated October 2, 2026).

  • White Memorial Medical Center74 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All internal medicine doctors in Los Angeles →

Other clinicians in White Memorial Medical Center

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

Clinician information

CredentialMD
Graduation year1974 (52 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104856186
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