Active NPI
Ella Marie Guerrero, HIS
- Hearing Instrument Specialist
- Oakland, CA
National Provider Identifier
1205402120
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hearing Instrument Specialist
- License
- 9000
- Practice address
- 400 30TH St Ste 101
Oakland, CA 94609-3316 - Phone
- (510) 832-4056
- Fax
- (510) 929-4217
- NPI assigned
- Jun 1, 2021
- 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 |
|---|---|---|---|---|
| Hearing Instrument Specialist | 237700000X | 9000 | CA | Primary |
Addresses
Primary practice location
400 30TH St Ste 101
Oakland, CA 94609-3316
Mailing address
400 30TH St Ste 101
Oakland, CA 94609-3316
Phone (510) 832-4056
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 9000 | CA | MD | Pediatric Occupational Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Creekside Hearing Aid Service | Past | Accepting new patients | |
| Hearinglife Hearing Aid Center LLC | Past | Accepting new patients |
Organizations & group practices 2
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.
-
- Hearing and Speech Clinic/Center
- Vacaville, CA
- NPI 1639524622
-
- Hearing and Speech Clinic/Center
- Ventura, CA
- NPI 1679873822
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1622505600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1738108800000",
"number": "1205402120",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "400 30TH ST STE 101",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946093316",
"telephone_number": "510-832-4056",
"fax_number": "510-929-4217"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "400 30TH ST STE 101",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946093316",
"telephone_number": "510-832-4056",
"fax_number": "510-929-4217"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GUERRERO",
"first_name": "ELLA MARIE",
"credential": "HIS",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-06-01",
"last_updated": "2025-01-29",
"certification_date": "2025-01-29",
"status": "A"
},
"taxonomies": [
{
"code": "237700000X",
"taxonomy_group": "",
"desc": "Hearing Instrument Specialist",
"state": "CA",
"license": "9000",
"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 Jan 29, 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.