Active NPI
Stanford Wellington Chun, MD
- Pediatric Pulmonology Physician
- San Francisco, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Pulmonology Physician
- License
- A179155
- Practice address
- 550 16TH St FL 4
San Francisco, CA 94158-2604 - Phone
- (415) 353-7337
- NPI assigned
- Mar 17, 2019
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | A179155 | CA | |
| Pediatric Pulmonology Physician | 2080P0214X | A179155 | CA | Primary |
Addresses
Primary practice location
550 16TH St FL 4
San Francisco, CA 94158-2604
Mailing address
550 16TH St FL 4
San Francisco, CA 94158-2604
Phone (415) 353-7337
Other practice location 1
4650 W Sunset Blvd
Los Angeles, CA 90027-6062
Phone (323) 361-8453
Other practice location 2
505 S Main St Ste 525
Orange, CA 92868-4553
Phone (714) 456-5631
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 |
|---|---|---|---|
| A179155 | CA | MD | Pediatric Pulmonology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University of California San Francisco | Pediatrics | Current | Accepting new patients |
| University of California San Francisco | Current | Accepting new patients | |
| UCSF Pediatrics Associates | Pediatrics | Current | Accepting new patients |
| UCSF Medical Group Business Services | Current | Accepting new patients | |
| UCSF Medical Group Business Services | Current | Accepting new patients | |
| University of California San Francisco | Current | Accepting new patients | |
| University of California Irvine | Past | Accepting new patients | |
| University of California San Francisco Medical Center | Past | Accepting new patients |
Locations
2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444
505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058
550 16th St
Fl 4
San Francisco, CA 94158
Phone (415) 353-7337
400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000
Interoperability endpoints
- schun425801@direct-ucsfmedicalcenter.org
Organizations & group practices 8
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.
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- Internal Medicine Physician
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- NPI 1477624104
-
- Pediatrics Physician
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- NPI 1376614016
-
- Pediatrics Physician
- San Francisco, CA
- NPI 1861578973
-
- Health Service Clinic/Center
- San Francisco, CA
- NPI 1194115246
-
- Surgery Physician
- San Francisco, CA
- NPI 1346329380
-
- Community/Retail Pharmacy
- San Francisco, CA
- NPI 1659141711
-
- General Acute Care Hospital
- Orange, CA
- NPI 1689608150
-
- General Acute Care Hospital
- San Francisco, CA
- NPI 1144325440
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1552780800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754006400000",
"number": "1104385475",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "550 16TH ST FL 4",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941582604",
"telephone_number": "415-353-7337"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "550 16TH ST FL 4",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941582604",
"telephone_number": "415-353-7337"
}
],
"practiceLocations": [
{
"address_1": "4650 W Sunset Blvd",
"address_purpose": "LOCATION",
"city": "Los Angeles",
"state": "CA",
"postal_code": "900276062",
"country_code": "US",
"telephone_number": "323-361-8453",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "505 S Main St Ste 525",
"address_purpose": "LOCATION",
"city": "Orange",
"state": "CA",
"postal_code": "928684553",
"country_code": "US",
"telephone_number": "714-456-5631",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHUN",
"first_name": "STANFORD",
"middle_name": "WELLINGTON",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-03-17",
"last_updated": "2025-08-01",
"certification_date": "2025-08-01",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "CA",
"license": "A179155",
"primary": false
},
{
"code": "2080P0214X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Pulmonology",
"state": "CA",
"license": "A179155",
"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 1, 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.