Individual provider Active NPI

Chinasa Phoebe Onyemkpa, MD

  • Addiction Medicine (Family Medicine) Physician
  • Loma Linda, CA
National Provider Identifier
1356038566
Registry record updated Aug 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction Medicine (Family Medicine) PhysicianTaxonomy code 207QA0401X
License
MD61686600 Issued in CA
Practice address
Nichol Hall 2007 24951 North Circle Drive
Loma Linda, CA 92350-0001
Phone
(909) 558-7622
NPI assigned
Apr 18, 2023
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 18, 2026

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X ML61430895 WA
Student in an Organized Health Care Education/Training Program 390200000X MD61686600 CA
Family Medicine Physician 207Q00000X MD61686600 WA
Addiction Medicine (Family Medicine) Physician 207QA0401X MD61686600 CA Primary
Family Medicine Physician 207Q00000X MD61686600 CA

Addresses

Primary practice location

Nichol Hall 2007 24951 North Circle Drive
Loma Linda, CA 92350-0001

Mailing address

Nichol Hall 2007 24951 North Circle Drive
Loma Linda, CA 92350-0001
Phone (909) 558-7622

Other practice location 1

521 E Mountain View Ave
Ellensburg, WA 98926-3865
Phone (509) 962-1414

Other practice location 2

1806 W Lincoln Ave
Yakima, WA 98902-2473
Phone (509) 452-4520

Other practice location 3

303 E Vanderbilt Way
San Bernardino, CA 92415-0026
Phone (909) 382-8211 ext. 68278

Other identifiers 1

IdentifierTypeStateIssuer
2255529MedicaidWA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20231106001762 WA Order and Referring Only - Family PracticePractitioner - Family Practice 7315394855

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD61686600WAMDFamily Medicine Physician

Interoperability endpoints

  • Direct secure messaging: conyemkpa644781@direct.ochin.org

NPI Registry JSON

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

{
    "created_epoch": "1681776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787011200000",
    "number": "1356038566",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "NICHOL HALL 2007 24951 NORTH CIRCLE DRIVE",
            "city": "LOMA LINDA",
            "state": "CA",
            "postal_code": "923500001",
            "telephone_number": "909-558-7622"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NICHOL HALL 2007 24951 NORTH CIRCLE DRIVE",
            "city": "LOMA LINDA",
            "state": "CA",
            "postal_code": "923500001",
            "telephone_number": "909-558-7622"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "521 E Mountain View Ave",
            "address_purpose": "LOCATION",
            "city": "Ellensburg",
            "state": "WA",
            "postal_code": "989263865",
            "country_code": "US",
            "telephone_number": "509-962-1414",
            "fax_number": "509-452-5224",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1806 W Lincoln Ave",
            "address_purpose": "LOCATION",
            "city": "Yakima",
            "state": "WA",
            "postal_code": "989022473",
            "country_code": "US",
            "telephone_number": "509-452-4520",
            "fax_number": "509-452-5224",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "303 E Vanderbilt Way",
            "address_purpose": "LOCATION",
            "city": "San Bernardino",
            "state": "CA",
            "postal_code": "924150026",
            "country_code": "US",
            "telephone_number": "909-382-8211 x68278",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ONYEMKPA",
        "first_name": "CHINASA",
        "middle_name": "PHOEBE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-04-18",
        "last_updated": "2026-08-18",
        "certification_date": "2026-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "WA",
            "license": "ML61430895",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CA",
            "license": "MD61686600",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WA",
            "license": "MD61686600",
            "primary": false
        },
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "CA",
            "license": "MD61686600",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "MD61686600",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2255529",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Loma Linda, CA

Sources for this page

Verify at the official NPI Registry.