Active NPI
Byron M. Sotomayor, MD
- Diagnostic Radiology Physician
- Arcadia, CA
National Provider Identifier
1497780456
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Diagnostic Radiology Physician
- License
- A65524
- Practice address
- 638 W Duarte Rd
Suite 2
Arcadia, CA 91007-7616 - Phone
- (626) 446-0080
- Fax
- (626) 447-4432
- NPI assigned
- Jul 11, 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Specialist | 174400000X | A65524 | CA | |
| Diagnostic Radiology Physician | 2085R0202X | A65524 | CA | Primary |
Addresses
Primary practice location
638 W Duarte Rd
Suite 2
Arcadia, CA 91007-7616
Mailing address
638 W Duarte Rd
Suite 2
Arcadia, CA 91007-7616
Phone (626) 446-0080
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
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20090407000142 | CA | Practitioner - Diagnostic Radiology | 1759438849 | Practice locations: Arcadia, CA |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A65524 | CA | MD | Diagnostic Radiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hni Medical Services of California, PC | Past | Accepting new patients | |
| Palm Desert Radiology Medical Group, Inc | Diagnostic Radiology | 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.
-
- Hospitalist Physician
- Rancho Mirage, CA
- NPI 1154797041
-
- Diagnostic Radiology Physician
- Rancho Mirage, CA
- NPI 1124079868
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1152576000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751500800000",
"number": "1497780456",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "638 W DUARTE RD",
"address_2": "SUITE 2",
"city": "ARCADIA",
"state": "CA",
"postal_code": "910077616",
"telephone_number": "626-446-0080",
"fax_number": "626-447-4432"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "638 W DUARTE RD",
"address_2": "SUITE 2",
"city": "ARCADIA",
"state": "CA",
"postal_code": "910077616",
"telephone_number": "626-446-0080",
"fax_number": "626-447-4432"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SOTOMAYOR",
"first_name": "BYRON",
"middle_name": "M.",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-11",
"last_updated": "2025-07-03",
"certification_date": "2025-07-03",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "CA",
"license": "A65524",
"primary": false
},
{
"code": "2085R0202X",
"taxonomy_group": "",
"desc": "Radiology, Diagnostic Radiology",
"state": "CA",
"license": "A65524",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Arcadia, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 3, 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.