NPPES file of Aug 9, 2026

Gregory K. Yun, DC

Chiropractor · Garden Grove, CA

Gregory K. Yun, DC is a chiropractor with a practice address in Garden Grove, California, and NPI 1205936325, issued on Sep 25, 2006. Check the license (California DC23414, 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
1205936325
Name
Gregory K. Yun
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
DC23414 CA
Self-reported in NPPES; status is on the state search
Practice location
13071 Brookhurst St Ste 130, Garden Grove, CA 92843
Phone
(714) 638-7410
Enumerated
Sep 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(714) 638-7420
Medicare enrollment
Enrolled (PECOS I20101012000995); accepts Medicare assignment
Medical or professional school
Los Angeles College Of Chiropractic, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Gregory K. Yun 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 DC23414
    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
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Gregory K. Yun among 11,498 chiropractor records in California

Gregory K. Yun, DC 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1993 · median 1999 among the 2,907 with a school on file
  • 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).

82 chiropractor records list a practice address in Garden Grove

They are 82 of the 4,572 NPPES records with a practice address in Garden Grove, and 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. Tung Buu, D.C.Garden Grove, CA 928431609975408
  2. Victoria Duong, D.C.Garden Grove, CA 928431073557179
  3. Hai Hinh, DCGarden Grove, CA 928431902953029
  4. Stacie Le, D.C.Garden Grove, CA 928431447337639
  5. Theresa Le, DCGarden Grove, CA 928431093879561
  6. Gema Malfavon-Reyes, D.C.Garden Grove, CA 928431598971673
  7. Doan Ngo, D.CGarden Grove, CA 928431174605331
  8. Loc Nguyen, D.C.Garden Grove, CA 928431891713897

Common questions

What is Gregory K. Yun, DC's NPI number?

Gregory K. Yun, DC's National Provider Identifier (NPI) is 1205936325, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory K. Yun, DC located?

The NPPES record lists a practice address at 13071 Brookhurst St Ste 130, Garden Grove, CA, 92843. Phone: (714) 638-7410. Providers update this record themselves, so call before visiting.

How can I verify Gregory K. Yun, DC's license?

NPPES lists California license number DC23414, 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.