Active NPI
Yun Sok Choi, MD
- Anesthesiology Physician
- Walnut Creek, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- G75578
- Practice address
- 1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122 - Phone
- (925) 939-3000
- NPI assigned
- Jan 24, 2007
- Last updated
- Dec 2, 2024
- Sex
- Male
- 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 |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | G75578 | CA | Primary |
Addresses
Primary practice location
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122
Mailing address
PO Box 7793
San Francisco, CA 94120-7793
Phone (503) 372-2740
Other practice location 1
2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone (925) 627-3424
Other names 1
- Randall Yun Sok Choi
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
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A50453 | CA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| John Muir Trauma Physicians Billing Service | Current | Accepting new patients | |
| Bass Medical Group | Current | Accepting new patients | |
| Bass Medical Group | Current | Accepting new patients | |
| Bass Medical Group | Current | Accepting new patients | |
| G2 Anesthesia PC | Anesthesiology | Current | Accepting new patients |
| Premier Anesthesia of California, PC | Anesthesiology | Current | Accepting new patients |
| John Muir Trauma Physicians Billing Service | Anesthesiology | Current | Accepting new patients |
Locations
1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225
3351 El Camino Real
Ste 220
Atherton, CA 94027
Phone (650) 363-2800
429 Llewellyn Ave
Campbell, CA 95008
Phone (408) 358-5000
901 Campus Dr
Ste 120
Daly City, CA 94015
39350 Civic Center Dr
Ste 100
Fremont, CA 94538
Phone (510) 456-4600
15047 Los Gatos Blvd
Ste 150
Los Gatos, CA 95032
Phone (408) 356-2244
4 Financial Plz
Napa, CA 94558
Phone (707) 266-7051
400 Forest Ave
Palo Alto, CA 94301
Phone (650) 289-1208
4626 Willow Rd
Ste 100
Pleasanton, CA 94588
Phone (925) 462-2334
5555 W Las Positas Blvd
Pleasanton, CA 94588
Phone (925) 416-3418
3370 Geary Blvd
San Francisco, CA 94118
Phone (415) 379-7500
2425 Samaritan Dr
San Jose, CA 95124
Phone (408) 354-2114
6001 Norris Canyon Rd
San Ramon, CA 94583
Phone (925) 275-8273
100 N Wiget Ln
Ste 140
Walnut Creek, CA 94598
Phone (530) 758-2324
133 La Casa Via
Ste 150
Walnut Creek, CA 94598
Phone (925) 210-8400
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545
2021 Ygnacio Valley Rd
Ste H102
Walnut Creek, CA 94598
Phone (866) 678-4320
2637 Shadelands Dr
Walnut Creek, CA 94598
Phone (925) 627-3424
365 Lennon Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 627-3424
460 N Wiget Ln
#A
Walnut Creek, CA 94598
Phone (925) 210-8400
460 N Wiget Ln
#B
Walnut Creek, CA 94598
Phone (925) 378-4500
Organizations & group practices 7
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Obstetrics & Gynecology Physician
- Walnut Creek, CA
- NPI 1174253405
-
- Anesthesiology Physician
- Los Gatos, CA
- NPI 1487214698
-
- Hospitalist Physician
- Walnut Creek, CA
- NPI 1093864837
-
- Anesthesiology Physician
- San Ramon, CA
- NPI 1770691859
-
- Specialist
- Walnut Creek, CA
- NPI 1154401941
-
- Orthopaedic Surgery Physician
- San Ramon, CA
- NPI 1467329904
-
- Trauma Surgery Physician
- Walnut Creek, CA
- NPI 1962551861
Anesthesiology
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": "1733097600000",
"number": "1669527164",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 7793",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941207793",
"telephone_number": "503-372-2740"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1601 YGNACIO VALLEY RD",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945983122",
"telephone_number": "925-939-3000"
}
],
"practiceLocations": [
{
"address_1": "2637 Shadelands Dr",
"address_purpose": "LOCATION",
"city": "Walnut Creek",
"state": "CA",
"postal_code": "945982512",
"country_code": "US",
"telephone_number": "925-627-3424",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHOI",
"first_name": "YUN SOK",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-01-24",
"last_updated": "2024-12-02",
"certification_date": "2024-12-02",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "CA",
"license": "G75578",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "RANDALL",
"last_name": "CHOI",
"middle_name": "YUN SOK",
"credential": "MD",
"code": "2",
"type": "Professional Name"
}
]
}
Other providers in Walnut Creek, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2024; 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.