Active NPI
Kristin Gayle Cosner, NP
- Pediatric Nurse Practitioner
- San Francisco, CA
National Provider Identifier
1821623745
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Nurse Practitioner
- License
- 95009964
- Practice address
- 1975 4TH St FL 6
San Francisco, CA 94143-2351 - Phone
- (415) 476-3831
- NPI assigned
- Mar 11, 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | 95009964 | CA | |
| Pediatric Nurse Practitioner | 363LP0200X | 95009964 | CA | Primary |
Addresses
Primary practice location
1975 4TH St FL 6
San Francisco, CA 94143-2351
Mailing address
725 Welch Rd
Palo Alto, CA 94304-1601
Phone (650) 497-8000
Other practice location 1
1000 Welch Rd Ste 301
Palo Alto, CA 94304-1811
Phone (650) 723-2335
Other practice location 2
725 Welch Rd
Palo Alto, CA 94304-1601
Phone (650) 497-8000
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: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| CTD Network LLC | Current | Accepting new patients |
Organizations & group practices 1
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.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1583884800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786060800000",
"number": "1821623745",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "725 WELCH RD",
"city": "PALO ALTO",
"state": "CA",
"postal_code": "943041601",
"telephone_number": "650-497-8000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1975 4TH ST FL 6",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432351",
"telephone_number": "415-476-3831"
}
],
"practiceLocations": [
{
"address_1": "1000 Welch Rd Ste 301",
"address_purpose": "LOCATION",
"city": "Palo Alto",
"state": "CA",
"postal_code": "943041811",
"country_code": "US",
"telephone_number": "650-723-2335",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "725 Welch Rd",
"address_purpose": "LOCATION",
"city": "Palo Alto",
"state": "CA",
"postal_code": "943041601",
"country_code": "US",
"telephone_number": "650-497-8000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "COSNER",
"first_name": "KRISTIN",
"middle_name": "GAYLE",
"credential": "NP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-03-11",
"last_updated": "2026-08-07",
"certification_date": "2026-08-07",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "CA",
"license": "95009964",
"primary": false
},
{
"code": "363LP0200X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Pediatrics",
"state": "CA",
"license": "95009964",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Francisco, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 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.