NPPES file of Aug 9, 2026

Kathryn A. Oconnor, DC

Chiropractor · Petaluma, CA

Kathryn A. Oconnor, DC is a chiropractor with a practice address in Petaluma, California, and NPI 1508997602, issued on Mar 8, 2007. Check the license (California DC23673, 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
1508997602
Name
Kathryn A. Oconnor
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
DC23673 CA
Self-reported in NPPES; status is on the state search
Practice location
5 Keller St, Petaluma, CA 94952
Phone
(707) 778-1145
Enumerated
Mar 8, 2007
Record last updated
Jan 21, 2025
Fax
(707) 778-3506
Medicare enrollment
Enrolled (PECOS I20110519000197); may accept Medicare assignment
Medical or professional school
Palmer College Chiropractic - Davenport, 1994
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 5 Keller St

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

  1. Kimberly Buksa, MAMarriage & Family Therapist1750699591
  2. Aaron DeforestHomeopath1104374263
  3. Judy Iwanier, MSW, LCSWClinical Social Worker1053560581
  4. Erin Meyers, L.AC., CMTAcupuncturist1669626644

Verify Kathryn A. Oconnor 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 DC23673
    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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Kathryn A. Oconnor among 11,498 chiropractor records in California

Kathryn A. Oconnor, 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 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 fileYes · 25% of these records are
  • Graduated1994 · median 1999 among the 2,907 with a school on file
  • Record last updated2025 · 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).

39 chiropractor records list a practice address in Petaluma

They are 39 of the 1,856 NPPES records with a practice address in Petaluma, 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. Michelle Arietta, DCPetaluma, CA 949521952502437
  2. Steven Battaglino, D.C.Petaluma, CA 949521063576866
  3. David Donaldson, D.C.Petaluma, CA 949521124264858
  4. Cindy George, D.C.Petaluma, CA 949521952324717
  5. Ronald Hammer, D.C.Petaluma, CA 949521972517449
  6. Steven Jette, DCPetaluma, CA 949521356419733
  7. Steven Jones, D.C.Petaluma, CA 949521609083179
  8. Melanie Joshua, D.C.Petaluma, CA 949521922128586

Common questions

What is Kathryn A. Oconnor, DC's NPI number?

Kathryn A. Oconnor, DC's National Provider Identifier (NPI) is 1508997602, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn A. Oconnor, DC located?

The NPPES record lists a practice address at 5 Keller St, Petaluma, CA, 94952. Phone: (707) 778-1145. Providers update this record themselves, so call before visiting.

How can I verify Kathryn A. Oconnor, DC's license?

NPPES lists California license number DC23673, 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.