Individual provider Active NPI

Terry A. Blay, MD

  • Emergency Medicine Physician
  • San Jose, CA
National Provider Identifier
1447336953
Registry record updated Jul 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
G47094 Issued in CA
Practice address
5945 Almaden Expy Ste 110
San Jose, CA 95120-5922
Phone
(408) 997-1803
NPI assigned
Oct 27, 2006
Last updated
Jul 23, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 23, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X G47094 CA Primary

Addresses

Primary practice location

5945 Almaden Expy Ste 110
San Jose, CA 95120-5922

Mailing address

19040 Graystone LN
San Jose, CA 95120-1015
Phone (408) 997-1803

Other identifiers 1

IdentifierTypeStateIssuer
00G470940MedicaidCA

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110210000497 CA Practitioner - Internal MedicinePractitioner - Emergency Medicine 1759561582 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Emergency Medicine
Education
Wayne State University School of Medicine, 1980
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
County of Santa ClaraGroup PAC ID 1254244973, 1,000 clinicians

Practice addresses (Care Compare)

18550 De Paul Dr
Morgan Hill, CA 95037-2911
Phone (408) 885-5000

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
G47094CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Santa Clara Emergency Medicine CurrentSince Jul 1, 2019 Accepting new patients
County of Santa Clara Current Accepting new patients
County of Santa Clara CurrentSince Jul 1, 2019 Accepting new patients

Locations

9400 No Name Uno
Gilroy, CA 95020
Phone (408) 848-2000

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

Interoperability endpoints

  • Direct secure messaging: tblay126142@santaclaravalley.direct-ci.net

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1161907200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1447336953",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19040 GRAYSTONE LN",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951201015",
            "telephone_number": "408-997-1803"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5945 ALMADEN EXPY STE 110",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951205922",
            "telephone_number": "408-997-1803"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLAY",
        "first_name": "TERRY",
        "middle_name": "A.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-10-27",
        "last_updated": "2026-07-23",
        "certification_date": "2026-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "G47094",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G470940",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Jose, CA

Sources for this page

Verify at the official NPI Registry.