CHAPARRAL MEDICAL GROUP INC
NPI 1962464529
Family Medicine in Claremont, CA
About Chaparral Medical Group Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHAPARRAL MEDICAL GROUP INC (NPI 1962464529) is a healthcare organization registered as a family medicine in Claremont, California and active in the NPI registry since April 2006. The organization lists Adrienne M Walker, Contracts Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Chaparral Medical Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
114Medicare enrollment records show 114 clinicians reassign Medicare billing to Chaparral Medical Group Inc, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 85 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 28
Nearest to this location (20)
See all 114Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Chaparral Medical Group Inc's NPI number?
The NPI number for Chaparral Medical Group Inc is 1962464529. It was assigned to this organization in the NPPES registry on April 6, 2006.
Where is Chaparral Medical Group Inc located?
Chaparral Medical Group Inc is located at 430 West Baseline Rd, Claremont, CA 91711. The listed phone number is (909) 621-3916.
What is Chaparral Medical Group Inc's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Chaparral Medical Group Inc enrolled in Medicare?
Yes. Chaparral Medical Group Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Chaparral Medical Group Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 114 clinicians in 28 Medicare specialties reassign their Medicare billing to Chaparral Medical Group Inc. A 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 the clinician's services. The largest specialties are Internal Medicine (29), Cardiovascular Disease (Cardiology) (11) and Nurse Practitioner (9). Of these, 3 practice at this address and 85 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Chaparral Medical Group Inc was last updated on October 4, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Chaparral Medical Group Inc · NPI 1962464529
Family Medicine organization in Claremont, California. Organization record, active in the CMS NPPES registry since April 6, 2006.
## Identity
- **NPI:** 1962464529 (Entity type: Organization)
- **Enumerated:** April 6, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** Adrienne Walker, CONTRACTS ADMINISTRATOR
## Practice location
- **Address:** 430 WEST BASELINE RD, Claremont, CA 91711-1696
- **Phone:** (909) 621-3916 · **Fax:** (909) 625-0903
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 114 clinicians in 28 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (29), Cardiovascular Disease (Cardiology) (11), Nurse Practitioner (9); 3 practice at this address and 85 within 10 miles; [full list](https://npiprofile.com/npi/1962464529/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 4, 2007
- **Other identifiers:** Medicaid GR0052953 (CA); Medicare PIN W11798A (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1962464529) · Data from the CMS NPPES public registry.