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

Dermatology

Richard A. Yamamoto, MD

Works at hospitals in Torrance, CA · California

Summary

Dr. Richard A. Yamamoto, MD is a dermatologist at 3565 Del Amo Blvd, Torrance, CA 90503. Phone: (310) 214-0811. Accepts Medicare assignment. In 2024, Richard A. Yamamoto had 206 Original Medicare patients and 2,390 services. NPI 1003859802. 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: Dermatologist (Medicare lists Dermatology)
  • Address: 3565 Del Amo Blvd, Torrance, CA 90503 · Directions
  • Phone: (310) 214‑0811
  • Medicare: Accepts Medicare assignment
  • Hospital: Lac/Harbor-Ucla Medical Center
  • Group practice: Healthcare Partners Affiliates Medical Group
  • Medical school: graduated 1984 (42 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Richard A. Yamamoto, 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 Richard A. Yamamoto accept Medicare assignment?
Yes. Medicare's clinician data says Richard A. Yamamoto 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 Richard A. Yamamoto see?
In 2024, CMS data shows 206 Original Medicare patients and 2,390 services for Richard A. Yamamoto. This counts Original Medicare only and measures volume, not quality.
What is Richard A. Yamamoto's NPI number?
1003859802. 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 Richard A. Yamamoto, 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 patients206
Services billed to Medicare2,390
Different services or procedures16
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)1,783 services
  2. Destruction of precancer skin growth, 1 growth (17000)258 services
  3. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)216 services
  4. Biopsy of related skin growth, first growth (11102)29 services
  5. Destruction of precancer skin growth, 15 or more growths (17004)26 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 cholesterol70%
  • High blood pressure67%
  • Arthritis31%
  • Chronic kidney disease22%
  • Diabetes19%
  • Ischemic heart disease19%

Hospitals where Richard A. Yamamoto works

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

Group practices

Medicare enrollment lists Richard A. Yamamoto as a member of this group (CMS data updated October 2, 2026).

  • Healthcare Partners Affiliates Medical Group754 clinicians in the group

Specialties

Find other Dermatology doctors in California →

Other dermatologists in Torrance

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

All dermatologists in Torrance →

Other clinicians in Healthcare Partners Affiliates Medical Group

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

Clinician information

CredentialMD
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003859802
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