NPIMap

Organization Active NPI

Inland Empire Multispecialty Group PC

Doing business as Riverside Multispecialty Medical Group

  • Specialist
  • Riverside, CA
National Provider Identifier
1891364576
Registry record updated Sep 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
SpecialistTaxonomy code 174400000X
Legal business name
INLAND EMPIRE MULTISPECIALTY GROUP PC
Doing business as
Riverside Multispecialty Medical Group
Practice address
9939 Magnolia Ave
Riverside, CA 92503-3528
Phone
(951) 323-7568
Fax
(951) 394-0685
NPI assigned
Jun 17, 2021
Last updated
Sep 11, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2026

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

Authorized official

Name
Yara Villanueva
Title
Senior Manager
Phone
(951) 354-3221

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
SpecialistGroup: 193200000X MULTI-SPECIALTY GROUP 174400000X Primary
Nephrology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RN0300X
Obstetrics & Gynecology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207V00000X

Addresses

Primary practice location

9939 Magnolia Ave
Riverside, CA 92503-3528

Mailing address

495 E Rincon St Ste 208
Corona, CA 92879-1379
Phone (951) 354-3221

Other names 1

  • Riverside Multispecialty Medical Group Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20210824002700 CA Part B Supplier - Clinic/Group Practice 0244635589 Receives reassigned benefits from 11 practitioners
2 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Riverside, CA; Moreno Valley, CA; Pomona, CA; Montclair, CA; Lake Elsinore, CA; Corona, CA; Perris, CA

Other NPIs on the same Medicare enrollment 2

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

National Provider Directory

National Provider Directory

Locations

495 E Rincon St
Ste 208
Corona, CA 92879

Practitioners & affiliated clinicians

Practitioners 12

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.

NPI Registry JSON

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

{
    "created_epoch": "1623888000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1789084800000",
    "number": "1891364576",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "495 E RINCON ST STE 208",
            "city": "CORONA",
            "state": "CA",
            "postal_code": "928791379",
            "telephone_number": "951-354-3221",
            "fax_number": "951-394-0685"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9939 MAGNOLIA AVE",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925033528",
            "telephone_number": "951-323-7568",
            "fax_number": "951-394-0685"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "INLAND EMPIRE MULTISPECIALTY GROUP PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2021-06-17",
        "last_updated": "2026-09-11",
        "certification_date": "2026-09-11",
        "status": "A",
        "authorized_official_last_name": "VILLANUEVA",
        "authorized_official_first_name": "YARA",
        "authorized_official_title_or_position": "SENIOR MANAGER",
        "authorized_official_telephone_number": "951-354-3221"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Specialist",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Obstetrics & Gynecology",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Riverside Multispecialty Medical Group",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Riverside, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.