Active NPI
Alesia Toshiko Barrett Singer, PH.D.
- Clinical Child & Adolescent Psychologist
- Oakland, CA
National Provider Identifier
1972656973
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Child & Adolescent Psychologist
- License
- PSY17230
- Practice address
- 17 Gleneden Ave Ste 7
Oakland, CA 94611-4316 - Phone
- (510) 435-2832
- NPI assigned
- Jan 21, 2007
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | PSY17230 | CA | |
| Clinical Child & Adolescent Psychologist | 103TC2200X | PSY17230 | CA | Primary |
Addresses
Primary practice location
17 Gleneden Ave Ste 7
Oakland, CA 94611-4316
Mailing address
17 Gleneden Ave Ste 7
Oakland, CA 94611-4316
Phone (510) 435-2832
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PSY17230 | CA | MD | Clinical Child & Adolescent Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1169337600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1972656973",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "17 GLENEDEN AVE STE 7",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946114316",
"telephone_number": "510-435-2832"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "17 GLENEDEN AVE STE 7",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946114316",
"telephone_number": "510-435-2832"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BARRETT SINGER",
"first_name": "ALESIA",
"middle_name": "TOSHIKO",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-01-21",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CA",
"license": "PSY17230",
"primary": false
},
{
"code": "103TC2200X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical Child & Adolescent",
"state": "CA",
"license": "PSY17230",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Oakland, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.