CHAPARRAL MEDICAL GROUP, INC.
NPI 1821554866
Internal Medicine - Cardiovascular Disease in Chino, 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 1821554866) is a healthcare organization registered as a cardiovascular disease in Chino, California and active in the NPI registry since February 2019. The organization holds a CLIA Waiver certificate valid through January 31, 2027 and lists Prasad A Jeereddi, Chief Medical Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 5
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
99Medicare enrollment records show 99 clinicians reassign Medicare billing to Chaparral Medical Group, Inc., which bills Medicare for the services they deliver. Of these, 4 practice at this address and 73 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 22
Nearest to this location (20)
See all 99Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 05D2161396
Chaparral Medical Group Inc · Chino, CAFrequently 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 1821554866. It was assigned to this organization in the NPPES registry on February 14, 2019.
Where is Chaparral Medical Group, Inc. located?
Chaparral Medical Group, Inc. is located at 5475 Walnut Ave Unit C, Chino, CA 91710. The listed phone number is (909) 465-0209.
What is Chaparral Medical Group, Inc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
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), 99 clinicians in 22 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 (21), Nurse Practitioner (15) and Cardiovascular Disease (Cardiology) (9). Of these, 4 practice at this address and 73 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Chaparral Medical Group, Inc. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2161396) is associated with this NPI, valid through January 31, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Chaparral Medical Group, Inc. was last updated on April 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Chaparral Medical Group, Inc. · NPI 1821554866
Cardiovascular Disease organization in Chino, California. Organization record, active in the CMS NPPES registry since February 14, 2019.
## Identity
- **NPI:** 1821554866 (Entity type: Organization)
- **Enumerated:** February 14, 2019
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **Organization subpart:** No
- **Authorized official:** Prasad Jeereddi, CHIEF MEDICAL OFFICER
## Practice location
- **Address:** 5475 WALNUT AVE UNIT C, Chino, CA 91710-2609
- **Phone:** (909) 465-0209 · **Fax:** (909) 465-0318
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 99 clinicians in 22 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (21), Nurse Practitioner (15), Cardiovascular Disease (Cardiology) (9); 4 practice at this address and 73 within 10 miles; [full list](https://npiprofile.com/npi/1821554866/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 8, 2025
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1821554866) · Data from the CMS NPPES public registry.