NPPES file of Aug 9, 2026

Robert Yuichi Oishi, D.C.

Chiropractor · Gardena, CA

Robert Yuichi Oishi, D.C. is a chiropractor with a practice address in Gardena, California, and NPI 1215078316, issued on Feb 9, 2007. Check the license (California 19560, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215078316
Name
Robert Yuichi Oishi
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
19560 CA
Self-reported in NPPES; status is on the state search
Practice location
16801 S Western Ave Ste B, Gardena, CA 90247
Phone
(310) 532-9993
Enumerated
Feb 9, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 542-1339
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Robert Yuichi Oishi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 19560
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Robert Yuichi Oishi among 11,498 chiropractor records in California

Robert Yuichi Oishi, D.C. is one of 11,498 chiropractor records with a practice address in California. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 45% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileNo · 25% of these records are
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Chiropractor providers in California

There are 11,498 chiropractor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. Phuong HuynhGardena, CA 902471164905204
  2. Chie Kigawa, D.C.Gardena, CA 902471912288119
  3. Hajime Yajima, DCGardena, CA 902471467709824
  4. David Yoshida, DSCGardena, CA 902471750407987
  5. Thomas Ontiveros, D.C.Gardena, CA 902481710901657
  6. Jeongho Roh, D.C.Gardena, CA 902481689860785
  7. Matthew BanksEl Segundo, CA 902451457242737
  8. John Blalock, D.C.El Segundo, CA 902451679963185

Common questions

What is Robert Yuichi Oishi, D.C.'s NPI number?

Robert Yuichi Oishi, D.C.'s National Provider Identifier (NPI) is 1215078316, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert Yuichi Oishi, D.C. located?

The NPPES record lists a practice address at 16801 S Western Ave Ste B, Gardena, CA, 90247. Phone: (310) 532-9993. Providers update this record themselves, so call before visiting.

How can I verify Robert Yuichi Oishi, D.C.'s license?

NPPES lists California license number 19560, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.