Active NPI
Amberlyn Sierra, LCSW
- Clinical Social Worker
- Norwalk, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 129913
- Practice address
- 11541 Rosecrans Ave
Norwalk, CA 90650-3898 - Phone
- (562) 923-9414
- Fax
- (562) 923-9451
- NPI assigned
- Feb 14, 2019
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 129913 | CA | Primary |
Addresses
Primary practice location
11541 Rosecrans Ave
Norwalk, CA 90650-3898
Mailing address
11541 Rosecrans Ave
Norwalk, CA 90650-3898
Phone (625) 923-9414
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: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 129913 | CA | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Telecare Corporation | Current | Accepting new patients | |
| Altamed Health Services Corp | Current | Accepting new patients | |
| Telecare Corporation | Current | Accepting new patients | |
| Telecare Corporation | Current | Accepting new patients | |
| Telecare Corporation | Past | Accepting new patients |
Locations
1080 Marina Village Pkwy
Ste 100
Alameda, CA 94501
Phone (510) 306-5660
12141 Brookhurst St
Ste 201
Garden Grove, CA 92840
Phone (657) 261-7140
12141 Brookhurst St
Ste 101
Garden Grove, CA 92840
Phone (714) 296-1934
12141 Brookhurst St
Garden Grove, CA 92840
Phone (714) 296-1934
11541 Rosecrans Ave
Norwalk, CA 90650
Phone (562) 923-9414
2100 N Broadway
Ste 101
Santa Ana, CA 92706
Phone (714) 245-6881
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- San Diego, CA
- NPI 1720164882
-
- PACE Provider Organization
- Norwalk, CA
- NPI 1902192875
-
- Mental Illness Community Based Residential Treatment Facility
- San Diego, CA
- NPI 1275398935
-
- Psychiatric Residential Treatment Facility
- Mission Viejo, CA
- NPI 1942737648
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Garden Grove, CA
- NPI 1992312805
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1550102400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752192000000",
"number": "1184180143",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11541 ROSECRANS AVE",
"city": "NORWALK",
"state": "CA",
"postal_code": "906503898",
"telephone_number": "625-923-9414",
"fax_number": "562-923-9451"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11541 ROSECRANS AVE",
"city": "NORWALK",
"state": "CA",
"postal_code": "906503898",
"telephone_number": "562-923-9414",
"fax_number": "562-923-9451"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SIERRA",
"first_name": "AMBERLYN",
"credential": "LCSW",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-02-14",
"last_updated": "2025-07-11",
"certification_date": "2025-07-11",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CA",
"license": "129913",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Norwalk, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 11, 2025; 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.