Active NPI
Catherine T Ly
- Hematology & Oncology Physician
- Downey, CA
National Provider Identifier
1295362085
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- A185150
- Practice address
- 11480 Brookshire Ave Ste 300
Downey, CA 90241-5023 - Phone
- (714) 456-5413
- NPI assigned
- Mar 24, 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 |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | A185150 | CA | Primary |
Addresses
Primary practice location
11480 Brookshire Ave Ste 300
Downey, CA 90241-5023
Mailing address
11480 Brookshire Ave Ste 300
Downey, CA 90241-5023
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1585008000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786492800000",
"number": "1295362085",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11480 BROOKSHIRE AVE STE 300",
"city": "DOWNEY",
"state": "CA",
"postal_code": "902415023"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11480 BROOKSHIRE AVE STE 300",
"city": "DOWNEY",
"state": "CA",
"postal_code": "902415023",
"telephone_number": "714-456-5413"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LY",
"first_name": "CATHERINE",
"middle_name": "T",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-03-24",
"last_updated": "2026-08-12",
"certification_date": "2026-08-12",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "CA",
"license": "A185150",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Downey, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.