Cajon Medical Group, PC in Lancaster, CA

This location of Cajon Medical Group bills under NPI 1508637760, an organization record issued on Jan 15, 2024 with the primary taxonomy Internal Medicine Physician. It is one of 20 NPIs registered under this name; each clinician who sees you there has their own NPI and license.

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

Organization recordNPPES, Aug 2026

1508637760

Legal name: Cajon Medical Group, PC
Entity: Type 2 · organization
Primary taxonomy: Internal Medicine Physician 207R00000X
Practice location: 44725 10TH ST W STE 230, Lancaster, CA 93534
Phone: 909-735-2446
Mailing address: Redlands, CA
Enumerated: Jan 15, 2024
Record updated: Jan 15, 2024
Authorized official: Provider Relations (title as filed)

Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

2 clinicians CMS lists with Cajon Medical Group in Lancaster

Thillaiampalam Srijaerajah, MDInternal Medicine Physician1538271002
May Charlene ZamoraFamily Nurse Practitioner1831683234

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 20 Cajon Medical Group NPIs

Every location registered under this name, in 16 cities.

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Checking an organization

Confirm the business with the California secretary of state.
Check the HHS-OIG exclusion list for the organization.
Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.