Active NPI
John Gavin Williams, M.D
- Emergency Medicine Physician
- Banning, CA
National Provider Identifier
1346284031
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- C38680
- Practice address
- 600 N. Highland Springs Ave
Banning, CA 92220 - Phone
- (951) 845-1121
- NPI assigned
- Jun 15, 2006
- 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 |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | C38680 | CA | Primary |
Addresses
Primary practice location
600 N. Highland Springs Ave
Banning, CA 92220
Mailing address
2100 Powell Street
Ste 920
Emeryville, CA 94608-1803
Phone (510) 350-2777
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)
- Not enrolled
- HHS exclusion list flag
- CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found.
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| C38680 | CA | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Chase Dennis Emergency Medical Group Inc | Emergency Medicine | Past | Accepting new patients |
| Emergency Department Physicians Medical Group, Inc. | Emergency Medicine | Past | Accepting new patients |
Organizations & group practices 2
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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NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1150329600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1346284031",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2100 POWELL STREET",
"address_2": "STE 920",
"city": "EMERYVILLE",
"state": "CA",
"postal_code": "946081803",
"telephone_number": "510-350-2777"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "600 N. HIGHLAND SPRINGS AVE",
"city": "BANNING",
"state": "CA",
"postal_code": "92220",
"telephone_number": "951-845-1121"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WILLIAMS",
"first_name": "JOHN",
"middle_name": "GAVIN",
"credential": "M.D",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-15",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "CA",
"license": "C38680",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Banning, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.