NPPES file of Aug 9, 2026

Christopher Loong Ma, D.C.

Chiropractor · Castro Valley, CA

Christopher Loong Ma, D.C. is a chiropractor with a practice address in Castro Valley, California, and NPI 1205717675, issued on Sep 10, 2025. Check the license (California DC37429, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1205717675
Name
Christopher Loong Ma
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
DC37429 CA
Self-reported in NPPES; status is on the state search
Practice location
21669 Redwood RD, Castro Valley, CA 94546
Phone
(510) 582-7418
Enumerated
Sep 10, 2025
Record last updated
Jan 23, 2026
Medicare enrollment
Enrolled (PECOS I20260114003927); may accept Medicare assignment
Medical or professional school
Life Chiropractic College - West, 2025
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 21669 Redwood RD

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

  1. Stephanie Harn, DCChiropractor1083363261
  2. Jeffrey Reichert, D.C., B.S.Chiropractor1659644375
  3. Ann Rose, CMTMassage Therapist1316551781
  4. Chloe RossChiropractor1811813553

Verify Christopher Loong Ma 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 DC37429
    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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Bills Medicare through one group practice

  1. Reichert Chiropractic IncCastro Valley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

35 chiropractor records list a practice address in Castro Valley

They are 35 of the 999 NPPES records with a practice address in Castro Valley, and 11,498 chiropractor records in California.

Other chiropractor records in California

  1. Karl Aamot, D.C.Sunnyvale, CA1629296983
  2. Beth Aarhus, D.C.San Jose, CA1508832221
  3. Michael Aaron, D.C.Belmont, CA1679630735
  4. Thao AaronCorona, CA1821553926
  5. Marianne Abate-Beavers, DCRocklin, CA1124139431
  6. Dilojan Abayaratna, D.C.Los Angeles, CA1659312957
  7. Jordan Abbass, DCLong Beach, CA1275106528
  8. David Abblett, DCNapa, CA1275529398
  9. Bridget Abbott, DCDanville, CA1790508547
  10. Nicholas Abboud, DCMoreno Valley, CA1851134365

Common questions

What is Christopher Loong Ma, D.C.'s NPI number?

Christopher Loong Ma, D.C.'s National Provider Identifier (NPI) is 1205717675, issued on Sep 10, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Loong Ma, D.C. located?

The NPPES record lists a practice address at 21669 Redwood RD, Castro Valley, CA, 94546. Phone: (510) 582-7418. Providers update this record themselves, so call before visiting.

How can I verify Christopher Loong Ma, D.C.'s license?

NPPES lists California license number DC37429, 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. Medicare files from data.cms.gov. 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.