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CHRISTOPHER LOONG MA D.C.
NPI 1205717675
Chiropractor in Castro Valley, CA

Active since September 10, 2025
21669 REDWOOD RD, CASTRO VALLEY, CA 94546(510) 582-7418 Get Directions Write a Review

NPPES record last updated: January 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 23, 2026, Sep 10, 2025 (2 updates tracked since 2025).

About Christopher Loong Ma D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER LOONG MA D.C. (NPI 1205717675) is an individual chiropractor in Castro Valley, California, licensed in California (DC37429) and active in the NPI registry since September 2025. He is a graduate of Life Chiropractic College - West (2025).

NPPES Registry Identity

NPI1205717675
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameCHRISTOPHER LOONG MACredential: D.C.
Location Address21669 REDWOOD RDCastro Valley, CA 94546-6431
Mailing Address5239 Peacock Hill DrCastro Valley, CA 94552-5530 · (415) 218-0653
Phone(510) 582-7418
Sole ProprietorNo
Medical School CMSLife Chiropractic College - WestGraduated 2025
Enumeration DateSeptember 10, 2025
Last NPPES UpdateJanuary 23, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 23, 2026
✔ NPI 1205717675 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · DC37429
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
21669 REDWOOD RD, Castro Valley, CA 94546
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Christopher Loong Ma D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6709362205
PECOS Enrollment IDI20260114003927

Medicare Billing Reassignment

Medicare enrollment records show Christopher Ma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Reichert Chiropractic Inc
Same address
Chiropractor
21669 REDWOOD RD
Castro Valley, CA 94546
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
NPI 1225548431 (408) 890-7503

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. STEPHANIE HARN DC
Chiropractor
21669 REDWOOD RD
CASTRO VALLEY, CA 94546
Alameda County (510) 582-7418
REICHERT CHIROPRACTIC INC
Chiropractor
21669 REDWOOD RD
CASTRO VALLEY, CA 94546
Alameda County (408) 890-7503
ANN MARIE ROSE CMT
Massage Therapist
21669 REDWOOD RD
CASTRO VALLEY, CA 94546
Alameda County (510) 295-3695
DR. JEFFREY REICHERT D.C., B.S.
Chiropractor
21669 REDWOOD RD
CASTRO VALLEY, CA 94546
Alameda County (510) 582-7418
CHLOE MUNDAY ROSS
Chiropractor
21669 REDWOOD RD
CASTRO VALLEY, CA 94546
Alameda County (510) 582-7418

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher Ma's NPI number?

The NPI number for Christopher Ma is 1205717675. It was assigned to this individual provider in the NPPES registry on September 10, 2025.

Where is Christopher Ma located?

Christopher Ma practices at 21669 Redwood Rd, Castro Valley, CA 94546. The listed phone number is (510) 582-7418.

What is Christopher Ma's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Christopher Ma enrolled in Medicare?

Yes. Christopher Ma is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Christopher Ma's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Ma reassigns Medicare benefits to Reichert Chiropractic Inc (Castro Valley, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christopher Ma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christopher Ma accept?

Health plans from Providence Health Plan list Christopher Ma as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Christopher Ma was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.