Richard Alan Yamamoto, M.D.
Dermatology Physician · Torrance, CA
Richard Alan Yamamoto, M.D. is a dermatology physician with a practice address in Torrance, California, and NPI 1003859802, issued on Jun 13, 2006. Check the license (California A48496, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard Alan Yamamoto
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A48496 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3565 Del Amo Blvd, Torrance, CA 90503
- Phone
- (310) 214-0811
- Enumerated
- Jun 13, 2006
- Record last updated
- Jan 15, 2026
- Fax
- (310) 371-5262
- Medicare enrollment
- Enrolled (PECOS I20040511001487); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 3565 Del Amo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Richard Alan Yamamoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A48496Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average dermatology physician in 2024
1,240 Medicare Part D claims for 461 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Mometasone Furoate126 claims
- Fluorouracil92 claims
- Doxepin Hcl83 claims
- Fluocinonide80 claims
- Doxycycline Hyclate68 claims
- Ketoconazole62 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Healthcare Partners Affiliates Medical GroupTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Alan Yamamoto among 2,083 dermatology physician records in California
Richard Alan Yamamoto, M.D. is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1984 · median 2006 among the 1,450 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Torrance → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Adrienne Brandriss, M.D.Torrance, CA 905031376734954
- Gary Chuang, M.D.Torrance, CA 905031013199868
- Reyhaneh Hamidi, MDTorrance, CA 905031144470162
- Takako Iwasaki, M.D.Torrance, CA 905031639240237
- Kathryn Johnston, M.D.Torrance, CA 905031952344475
- Stephanie Orr, M.D.Torrance, CA 905031568755502
- Phillip Valentine, M.D.Torrance, CA 905031306884416
- Shilpa Hamman, M.D.Torrance, CA 905021073830626
Common questions
What is Richard Alan Yamamoto, M.D.'s NPI number?
Richard Alan Yamamoto, M.D.'s National Provider Identifier (NPI) is 1003859802, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Alan Yamamoto, M.D. located?
The NPPES record lists a practice address at 3565 Del Amo Blvd, Torrance, CA, 90503. Phone: (310) 214-0811. Providers update this record themselves, so call before visiting.
How can I verify Richard Alan Yamamoto, M.D.'s license?
NPPES lists California license number A48496, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Richard Alan Yamamoto, M.D. prescribe under Medicare Part D?
In 2024, Richard Alan Yamamoto, M.D. had 1,240 Medicare Part D claims for 461 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.