Active NPI
Bradley Matsubara, MD
- Research Clinic/Center
- Escondido, CA
National Provider Identifier
1801728001
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Research Clinic/Center
- License
- A71772
- Practice address
- 521 Citracado Pkwy
Escondido, CA 92025-6412 - Phone
- (858) 228-6865
- NPI assigned
- Jun 1, 2026
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Research Clinic/Center | 261QR1100X | A71772 | CA | Primary |
Addresses
Primary practice location
521 Citracado Pkwy
Escondido, CA 92025-6412
Mailing address
521 Citracado Pkwy
Escondido, CA 92025-6412
Phone (858) 228-6865
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
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A71772 | CA | MD | Research Clinic/Center |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1780272000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780272000000",
"number": "1801728001",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "521 CITRACADO PKWY",
"city": "ESCONDIDO",
"state": "CA",
"postal_code": "920256412",
"telephone_number": "858-228-6865"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "521 CITRACADO PKWY",
"city": "ESCONDIDO",
"state": "CA",
"postal_code": "920256412",
"telephone_number": "858-228-6865"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MATSUBARA",
"first_name": "BRADLEY",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2026-06-01",
"last_updated": "2026-06-01",
"certification_date": "2026-06-01",
"status": "A"
},
"taxonomies": [
{
"code": "261QR1100X",
"taxonomy_group": "",
"desc": "Clinic/Center, Research",
"state": "CA",
"license": "A71772",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Escondido, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 1, 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.