Active NPI
Regine B Stillwell, AGNP-C
- Adult Health Nurse Practitioner
- Los Angeles, CA
National Provider Identifier
1609724236
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Adult Health Nurse Practitioner
- License
- AG01260061
- Practice address
- 14204 Sunburst Street
Los Angeles, CA 91402 - Phone
- (504) 220-6617
- NPI assigned
- Mar 19, 2026
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Adult Health Nurse Practitioner | 363LA2200X | AG01260061 | CA | Primary |
Addresses
Primary practice location
14204 Sunburst Street
Los Angeles, CA 91402
Mailing address
13651 Willard St
Panorama, CA 91402
Phone (504) 220-6617
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2024
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
1731 Harian Way
Sacramento, CA 95822-2611
18650 Macarthur Blvd
Suite 450
Irvine, CA 92612-1205
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| AG01260061 | CA | MD | Adult Health Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1773878400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1773878400000",
"number": "1609724236",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "13651 WILLARD ST",
"city": "PANORAMA",
"state": "CA",
"postal_code": "91402",
"telephone_number": "504-220-6617"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "14204 SUNBURST STREET",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "91402",
"telephone_number": "504-220-6617"
}
],
"practiceLocations": [],
"basic": {
"last_name": "STILLWELL",
"first_name": "REGINE",
"middle_name": "B",
"name_prefix": "Mrs.",
"credential": "AGNP-C",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2026-03-19",
"last_updated": "2026-03-19",
"certification_date": "2026-03-13",
"status": "A"
},
"taxonomies": [
{
"code": "363LA2200X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Nurse Practitioner, Adult Health",
"state": "CA",
"license": "AG01260061",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Los Angeles, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 19, 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.