Active NPI
Marissa Ashley Justen
- Psychiatry Physician
- San Francisco, CA
National Provider Identifier
1861182818
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 199201
- Practice address
- 500 Parnassus Ave
San Francisco, CA 94143-2203 - Phone
- (415) 476-4562
- Fax
- (415) 502-4166
- NPI assigned
- May 12, 2023
- 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 |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | 199201 | CA | Primary |
Addresses
Primary practice location
500 Parnassus Ave
San Francisco, CA 94143-2203
Mailing address
500 Parnassus Ave
San Francisco, CA 94143-2203
Phone (415) 476-4562
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: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250428000307 | CA | Order and Referring Only - Psychiatry | 5698291268 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 199201 | CA | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1683849600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1738022400000",
"number": "1861182818",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "500 PARNASSUS AVE",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432203",
"telephone_number": "415-476-4562",
"fax_number": "415-502-4166"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "500 PARNASSUS AVE",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432203",
"telephone_number": "415-476-4562",
"fax_number": "415-502-4166"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JUSTEN",
"first_name": "MARISSA",
"middle_name": "ASHLEY",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2023-05-12",
"last_updated": "2025-01-28",
"certification_date": "2025-01-28",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "CA",
"license": "199201",
"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 Jan 28, 2025; 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.