Active NPI
Marin Grace Olson
- Emergency Medicine Physician
- San Francisco, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- A194724
- Practice address
- 505 Parnassus Ave RM M24
San Francisco, CA 94143-2204 - Phone
- (415) 353-1529
- NPI assigned
- Mar 24, 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Emergency Medicine Physician | 207P00000X | A194724 | CA | Primary |
Addresses
Primary practice location
505 Parnassus Ave RM M24
San Francisco, CA 94143-2204
Mailing address
505 Parnassus Ave RM M24
San Francisco, CA 94143-2204
Phone (415) 353-1529
Other practice location 1
1001 Potrero Avenue
Blg. 25, First Floor
San Francisco, CA 94110
Phone (628) 206-8111
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA, TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Emergency Medicine
- Education
- University of Minnesota Medical School, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1001 Potrero Ave
San Francisco, CA 94110-3518
Phone (628) 206-5753
20103 Lake Chabot Rd
Castro Valley, CA 94546-5305
Phone (510) 537-1234
Hospital & facility affiliations
- Chinle Comprehensive Health Care Facility
- Eden Medical Center
- Zuckerberg San Francisco General Hosp & Trauma Ctr
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A194724 | CA | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| City & County of San Francisco | Current | Accepting new patients | |
| DHHS PHS Naihs Chinle Comprehensive Health Care Facility | Current | Accepting new patients | |
| City and County of San Francisco | Current | Accepting new patients | |
| DHHS PHS Naihs Chinle Comprehensive | Current | Accepting new patients | |
| University of California SFGH Medical Group | Emergency Medicine | Current | Accepting new patients |
| University of California SFGH Medical Group | Current | Accepting new patients | |
| City & County of San Francisco | Current | Accepting new patients | |
| University of California SFGH Medical Group | Current | Accepting new patients | |
| Eden Emergency Medical Group Inc | Emergency Medicine | Current | Accepting new patients |
Locations
20103 Lake Chabot Rd
Hayward, CA 94546
Phone (510) 537-1234
1001 Potrero Ave
Fl First
San Francisco, CA 94110
Phone (628) 206-8111
1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305
1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753
Interoperability endpoints
- molson746149@hisp.ehr.sutterhealth.org
Organizations & group practices 9
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.
-
- Emergency Medicine Physician
- Castro Valley, CA
- NPI 1891786240
-
- Anesthesiology Physician
- San Francisco, CA
- NPI 1366417420
-
- Clinical Medical Laboratory
- San Francisco, CA
- NPI 1982737524
-
- General Acute Care Hospital
- Chinle, AZ
- NPI 1508800129
TX
-
- Community Health/Public Health Clinical Nurse Specialist
- San Francisco, CA
- NPI 1609041060
-
- Methadone Clinic
- San Francisco, CA
- NPI 1578787925
-
- Vascular Surgery Physician
- San Francisco, CA
- NPI 1033913959
-
- Emergency Medicine Physician
- San Francisco, CA
- NPI 1316912439
-
- Ambulatory Surgical Clinic/Center
- Chinle, AZ
- NPI 1922253129
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- San Francisco, CA
- NPI 1083648810
-
- General Acute Care Hospital
- San Francisco, CA
- NPI 1164609962
-
- General Acute Care Hospital
- Castro Valley, CA
- NPI 1063812907
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1616544000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1756771200000",
"number": "1407433782",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "505 PARNASSUS AVE RM M24",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432204",
"telephone_number": "415-353-1529"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "505 PARNASSUS AVE RM M24",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432204",
"telephone_number": "415-353-1529"
}
],
"practiceLocations": [
{
"address_1": "1001 Potrero Avenue",
"address_2": "Blg. 25, First Floor",
"address_purpose": "LOCATION",
"city": "San Francisco",
"state": "CA",
"postal_code": "94110",
"country_code": "US",
"telephone_number": "628-206-8111",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "OLSON",
"first_name": "MARIN",
"middle_name": "GRACE",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-03-24",
"last_updated": "2025-09-02",
"certification_date": "2025-09-02",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "CA",
"license": "A194724",
"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 Sep 2, 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.
- 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.