NPIMap

Organization Active NPI

Chaparral Medical Group, Inc.

  • Cardiovascular Disease Physician
  • Rancho Cucamonga, CA
National Provider Identifier
1346639952
Registry record updated Feb 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
Legal business name
CHAPARRAL MEDICAL GROUP, INC.
Practice address
8330 Red Oak St Ste 101
Rancho Cucamonga, CA 91730-0603
Phone
(909) 987-4922
Fax
(909) 466-1190
NPI assigned
Jan 20, 2015
Last updated
Feb 24, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Feb 24, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Prasad A Jeereddi, M.D.NPI 1821058470
Title
Ceo
Phone
(909) 398-1550

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 10

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X CA
Internal Medicine Physician 207R00000X CA
Cardiovascular Disease Physician 207RC0000X CA Primary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X NU
Geriatric Medicine (Internal Medicine) Physician 207RG0300X CA
Pulmonary Disease Physician 207RP1001X NU
Nuclear Cardiology Physician 207UN0901X CA
Sleep Medicine (Internal Medicine) Physician 207RS0012X NU
Case Manager/Care Coordinator 171M00000X NU
Supports Brokerage Agency 251X00000X NU

Addresses

Primary practice location

8330 Red Oak St Ste 101
Rancho Cucamonga, CA 91730-0603

Mailing address

840 Towne Center Dr
Pomona, CA 91767-5900
Phone (909) 398-1550

Other practice location 1

8330 Red Oak St Ste 201
Rancho Cucamonga, CA 91730-0603
Phone (909) 987-2528

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040331001684 CA Part B Supplier - Clinic/Group Practice 6800709403 Receives reassigned benefits from 114 practitioners
15 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Rancho Cucamonga, CA; San Bernardino, CA; San Francisco, CA; Upland, CA; Chino, CA; Chino Hills, CA; Bakersfield, CA

Other NPIs on the same Medicare enrollment 14

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

View all 14

National Provider Directory

National Provider Directory

Networks

  • BSC 65 PLUS INDIVIDUAL MAPDPlans: Blue Shield 65 Plus (HMO) (H0504-015-000, H0504); Blue Shield 65 Plus (HMO) (H0504-039-000, H0504); Blue Shield 65 Plus Plan 2 (HMO) (H0504-021-000, H0504); Blue Shield Inspire (HMO) (H0504-041-000, H0504); Blue Shield 65 Plus (HMO) (H0504-038-000, H0504); Blue Shield Inspire (HMO) (H0504-047-000, H0504); Blue Shield 65 Plus (HMO) (H0504-026-000, H0504); Blue Shield Advantage (HMO) (H0504-050-000, H0504); Blue Shield AdvantageOptimum Plan (HMO) (H5928-004-000, H5928); Blue Shield Inspire (HMO) (H0504-043-000, H0504)…

Practitioners & affiliated clinicians

Practitioners 20

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 20

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1421712000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771891200000",
    "number": "1346639952",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 TOWNE CENTER DR",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917675900",
            "telephone_number": "909-398-1550",
            "fax_number": "909-398-1488"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8330 RED OAK ST STE 101",
            "city": "RANCHO CUCAMONGA",
            "state": "CA",
            "postal_code": "917300603",
            "telephone_number": "909-987-4922",
            "fax_number": "909-466-1190"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8330 Red Oak St Ste 201",
            "address_purpose": "LOCATION",
            "city": "Rancho Cucamonga",
            "state": "CA",
            "postal_code": "917300603",
            "country_code": "US",
            "telephone_number": "909-987-2528",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "CHAPARRAL MEDICAL GROUP, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2015-01-20",
        "last_updated": "2026-02-24",
        "certification_date": "2026-02-24",
        "status": "A",
        "authorized_official_last_name": "JEEREDDI",
        "authorized_official_first_name": "PRASAD",
        "authorized_official_middle_name": "A",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "909-398-1550",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CA",
            "license": null,
            "primary": true
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207UN0901X",
            "taxonomy_group": "",
            "desc": "Nuclear Medicine, Nuclear Cardiology",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "171M00000X",
            "taxonomy_group": "",
            "desc": "Case Manager/Care Coordinator",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "251X00000X",
            "taxonomy_group": "",
            "desc": "Supports Brokerage",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rancho Cucamonga, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.