Active NPI
Chinasa Phoebe Onyemkpa, MD
- Addiction Medicine (Family Medicine) Physician
- Loma Linda, CA
National Provider Identifier
1356038566
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction Medicine (Family Medicine) Physician
- License
- MD61686600
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 5
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2255529 | Medicaid | WA |
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
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20231106001762 | WA | Order and Referring Only - Family Practice | 7315394855 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD61686600 | WA | MD | Family Medicine Physician |
Interoperability endpoints
- 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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.