Active NPI
Louisa Liu, MD
- Medical Oncology Physician
- Duarte, CA
National Provider Identifier
1154941201
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Oncology Physician
- License
- A186501
- Practice address
- 1500 Duarte Rd
Duarte, CA 91010-3012 - Phone
- (800) 826-4673
- NPI assigned
- Apr 18, 2020
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Medical Oncology Physician | 207RX0202X | A186501 | CA | Primary |
Addresses
Primary practice location
1500 Duarte Rd
Duarte, CA 91010-3012
Mailing address
PO Box 512185
Los Angeles, CA 90051-0185
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | direct@cityofhope.direct-ci.com | Direct | CITY OF HOPE MEDICAL FOUNDATION |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- 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 |
|---|---|---|---|---|
| I20260616004107 | CA | Practitioner - Medical Oncology | 9638641087 |
Care Compare profile
Medicare Care Compare- Specialty
- Medical Oncology
- Education
- Other, 2020
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
1500 Duarte Rd
Duarte, CA 91010-3000
1500 Duarte Rd
Duarte, CA 91010-3012
PO Box
Los Angeles, CA 90051
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1587168000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785888000000",
"number": "1154941201",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 512185",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900510185"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1500 DUARTE RD",
"city": "DUARTE",
"state": "CA",
"postal_code": "910103012",
"telephone_number": "800-826-4673"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LIU",
"first_name": "LOUISA",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-04-18",
"last_updated": "2026-08-05",
"certification_date": "2026-08-05",
"status": "A"
},
"taxonomies": [
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "CA",
"license": "A186501",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "direct@cityofhope.direct-ci.com",
"affiliation": "Y",
"affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "1500 Duarte Rd",
"city": "Duarte",
"state": "CA",
"country_code": "US",
"postal_code": "910103012",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Duarte, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.