Active NPI
Arthur Zimmerman, M.D.
- Radiation Oncology Physician
- Torrance, CA
National Provider Identifier
1154464337
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Radiation Oncology Physician
- License
- G5792
- Practice address
- 1000 W Carson St
Box 480
Torrance, CA 90502-2004 - Phone
- (310) 222-2804
- NPI assigned
- Feb 15, 2007
- 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 |
|---|---|---|---|---|
| Radiation Oncology Physician | 2085R0001X | G5792 | CA | Primary |
Addresses
Primary practice location
1000 W Carson St
Box 480
Torrance, CA 90502-2004
Mailing address
1000 W Carson St
Box 480
Torrance, CA 90502-2004
Phone (310) 222-2804
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| DA6447 | Other | CA | RAILROAD MEDICARE |
| M050376 | Other | CA | GROUP |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G5792 | CA | MD | Radiation Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1171497600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789862400000",
"number": "1154464337",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1000 W CARSON ST",
"address_2": "BOX 480",
"city": "TORRANCE",
"state": "CA",
"postal_code": "905022004",
"telephone_number": "310-222-2804"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1000 W CARSON ST",
"address_2": "BOX 480",
"city": "TORRANCE",
"state": "CA",
"postal_code": "905022004",
"telephone_number": "310-222-2804"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ZIMMERMAN",
"first_name": "ARTHUR",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-02-15",
"last_updated": "2026-09-20",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "CA",
"license": "G5792",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAILROAD MEDICARE",
"identifier": "DA6447",
"state": "CA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "GROUP",
"identifier": "M050376",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Torrance, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.