Active NPI
Sarah Blythe Ballard, M.D.
- General Practice Physician
- Alameda, CA
National Provider Identifier
1316092174
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Physician
- License
- 51412-20
- Practice address
- 1 Eagle Rd
Alameda, CA 94501-5100 - Phone
- (510) 437-3581
- NPI assigned
- Jan 24, 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Public Health & General Preventive Medicine Physician | 2083P0901X | 51412-20 | WI | |
| Aerospace Medicine Physician | 2083A0100X | 51412-20 | WI | |
| General Practice Physician | 208D00000X | 51412-20 | WI | Primary |
Addresses
Primary practice location
1 Eagle Rd
Alameda, CA 94501-5100
Mailing address
1 Eagle Rd
Alameda, CA 94501-5100
Phone (510) 437-3581
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 Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 51412-20 | WI | MD | General Practice Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1169596800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1760054400000",
"number": "1316092174",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1 EAGLE RD",
"city": "ALAMEDA",
"state": "CA",
"postal_code": "945015100",
"telephone_number": "510-437-3581"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1 EAGLE RD",
"city": "ALAMEDA",
"state": "CA",
"postal_code": "945015100",
"telephone_number": "510-437-3581"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BALLARD",
"first_name": "SARAH",
"middle_name": "BLYTHE",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-01-24",
"last_updated": "2025-10-10",
"certification_date": "2025-10-10",
"status": "A"
},
"taxonomies": [
{
"code": "2083P0901X",
"taxonomy_group": "",
"desc": "Preventive Medicine, Public Health & General Preventive Medicine",
"state": "WI",
"license": "51412-20",
"primary": false
},
{
"code": "2083A0100X",
"taxonomy_group": "",
"desc": "Preventive Medicine, Aerospace Medicine",
"state": "WI",
"license": "51412-20",
"primary": false
},
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "WI",
"license": "51412-20",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Alameda, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 10, 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.