Richard Tamotsu Nishikawa, D.D.S.
General Practice Dentistry · Torrance, CA
Richard Tamotsu Nishikawa, D.D.S. is a general practice dentistry with a practice address in Torrance, California, and NPI 1982824017, issued on Apr 30, 2007. Check the license (California 27348, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard Tamotsu Nishikawa
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 27348 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23560 Madison St., Torrance, CA 90505
- Phone
- (310) 530-6444
- Enumerated
- Apr 30, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 530-9890
- Entity
- Type 1 · individual
Also registered at 23560 Madison St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cynthia Williams, M.D.Endocrinology, Diabetes & Metabolism Physician1265485049
Verify Richard Tamotsu Nishikawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 27348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average general practice dentistry in 2024
11 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Industry payments in 2024: $28.79
2 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
195 general practice dentistry records list a practice address in Torrance
They are 195 of the 8,901 NPPES records with a practice address in Torrance, and 17,852 general practice dentistry records in California.
All 195 in Torrance → All 17,852 in California → Every provider in Torrance →
Other general practice dentistry records in California
- Ronald Aanerud, DDSSan Diego, CA1871752931
- Steven Aaronson, D.D.S.Santa Monica, CA1265455851
- Shahrzad Aarup, DDSPomona, CA1265784367
- Al Abad, DDSSan Jose, CA1104992148
- Erwin Abad, D.D.S.Canoga Park, CA1861590093
- Francine Abad, DDSSan Francisco, CA1942700810
- Maria Abad, D.D.S.Norwalk, CA1215006754
- Mark Ryan Abad, DDSDaly City, CA1770357394
- Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
- Ernesto Abadilla, DDSPalm Desert, CA1508063801
Common questions
What is Richard Tamotsu Nishikawa, D.D.S.'s NPI number?
Richard Tamotsu Nishikawa, D.D.S.'s National Provider Identifier (NPI) is 1982824017, issued on Apr 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Richard Tamotsu Nishikawa, D.D.S. located?
The NPPES record lists a practice address at 23560 Madison St., Torrance, CA, 90505. Phone: (310) 530-6444. Providers update this record themselves, so call before visiting.
How can I verify Richard Tamotsu Nishikawa, D.D.S.'s license?
NPPES lists California license number 27348, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Richard Tamotsu Nishikawa, D.D.S. prescribe under Medicare Part D?
In 2024, Richard Tamotsu Nishikawa, D.D.S. had 11 Medicare Part D claims; the average among general practice dentistry prescribers was 83. 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.