NPPES file of Aug 9, 2026

Mark Spencer Gunn, D.C.

Chiropractor · La Habra, CA

Mark Spencer Gunn, D.C. is a chiropractor with a practice address in La Habra, California, and NPI 1043572324, issued on Jun 12, 2012. Check the license (California 32323, 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
1043572324
Name
Mark Spencer Gunn
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
32323 CA
Self-reported in NPPES; status is on the state search
Practice location
355 S Harbor Blvd, La Habra, CA 90631
Phone
(562) 694-8347
Enumerated
Jun 12, 2012
Record last updated
Jun 12, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(562) 690-8080
Medicare enrollment
Enrolled (PECOS I20140319002123); accepts Medicare assignment
Medical or professional school
Los Angeles College Of Chiropractic, 2012
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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Also registered at 355 S Harbor Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Holland, DCChiropractor1972673945
  2. John Holland, D.C.Chiropractor1881019198

Verify Mark Spencer Gunn 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 32323
    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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Mark Spencer Gunn among 11,498 chiropractor records in California

Mark Spencer Gunn, 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 2012, is newer than 69% of them.

  • NPI issued2012 · 69% of these records are older, 28% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated2012 · median 1999 among the 2,907 with a school on file
  • Record last updated2012 · 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).

26 chiropractor records list a practice address in La Habra

They are 26 of the 543 NPPES records with a practice address in La Habra, 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. Daryoush Amini, DC.La Habra, CA 906311568649846
  2. Gina Brown, D.C.La Habra, CA 906311710080122
  3. Glenn Cloud, DC QMELa Habra, CA 906311265493761
  4. Norma Franco, D.C.La Habra, CA 906311750501185
  5. Elliot Friedman, D.C.La Habra, CA 906311730479965
  6. John Holland, DCLa Habra, CA 906311972673945
  7. Matthew Jordin, DCLa Habra, CA 906311013949320
  8. Kristine Lukens, DCLa Habra, CA 906311023385184

Common questions

What is Mark Spencer Gunn, D.C.'s NPI number?

Mark Spencer Gunn, D.C.'s National Provider Identifier (NPI) is 1043572324, issued on Jun 12, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mark Spencer Gunn, D.C. located?

The NPPES record lists a practice address at 355 S Harbor Blvd, La Habra, CA, 90631. Phone: (562) 694-8347. Providers update this record themselves, so call before visiting.

How can I verify Mark Spencer Gunn, D.C.'s license?

NPPES lists California license number 32323, 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.