NPPES file of Aug 9, 2026

Michael John Kastrup, D.C.

Chiropractor · Oceanside, CA

Michael John Kastrup, D.C. is a chiropractor with a practice address in Oceanside, California, and NPI 1356306732, issued on Apr 19, 2006. Check the license (California 19661, 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
1356306732
Name
Michael John Kastrup
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
19661 CA
Self-reported in NPPES; status is on the state search
Practice location
4055 Oceanside Blvd Ste C, Oceanside, CA 92056
Phone
(760) 726-1953
Enumerated
Apr 19, 2006
Record last updated
Jul 11, 2023
Fax
(760) 726-1953
Medicare enrollment
Enrolled (PECOS I20060523000187); accepts Medicare assignment
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 Michael John Kastrup 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 19661
    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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Michael John Kastrup among 11,498 chiropractor records in California

Michael John Kastrup, 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 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
  • Graduated1988 · median 1999 among the 2,907 with a school on file
  • Record last updated2023 · 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).

36 chiropractor records list a practice address in Oceanside

They are 36 of the 3,438 NPPES records with a practice address in Oceanside, 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. Cindy Alexander, DCOceanside, CA 920561528099124
  2. Robert Cohen, DCOceanside, CA 920561336398106
  3. Janice Cruz, D. C.Oceanside, CA 920561285739946
  4. Brian Declerk, D.C.Oceanside, CA 920561598857013
  5. Phil Dixon, DCOceanside, CA 920561659576932
  6. James Farthing II, DC, QMEOceanside, CA 920561184772410
  7. Jason Kullmann, D.C.Oceanside, CA 920561285624189
  8. Scott Smith, DCOceanside, CA 920561346386406

Common questions

What is Michael John Kastrup, D.C.'s NPI number?

Michael John Kastrup, D.C.'s National Provider Identifier (NPI) is 1356306732, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael John Kastrup, D.C. located?

The NPPES record lists a practice address at 4055 Oceanside Blvd Ste C, Oceanside, CA, 92056. Phone: (760) 726-1953. Providers update this record themselves, so call before visiting.

How can I verify Michael John Kastrup, D.C.'s license?

NPPES lists California license number 19661, 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.