James Daniel Byrne, MD

Primary specialty

Maternal & Fetal Medicine PhysicianTaxonomy code 207VM0101X

License

G74780 Issued in CA

Practice address

751 S Bascom Ave
OB/GYN Department
San Jose, CA 95128-2604

Phone

(408) 885-5000

NPI assigned

Jun 19, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jbyrne10326@santaclaravalley.direct-ci.net

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.

• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1326033929
  NPD
• County of Santa Clara

  • Pharmacy
  • San Jose, CA
  • NPI 1891871919
  NPD
• County of Santa Clara

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500

  Obstetrics & Gynecology

  NPD (past)

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

{
    "created_epoch": "1150675200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1831134097",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "751 S BASCOM AVE",
            "address_2": "OB GYN DEPT",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951282604",
            "telephone_number": "408-885-5000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "751 S BASCOM AVE",
            "address_2": "OB/GYN DEPARTMENT",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951282604",
            "telephone_number": "408-885-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BYRNE",
        "first_name": "JAMES",
        "middle_name": "DANIEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-19",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "G74780",
            "primary": false
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "CA",
            "license": "G74780",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G747800",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Greg Lemonte Byers
• Angela Jo Bymaster, MD
• Ebony Byrd
• Sharlisa L Byrd, LMFT
• Cristal Lynn Byrne, PHD
• Rebecca Byrne
• Sandra Byrne, M.D.
• Lakshmi Bythadka, M.D.
• Danbi Byun, DMD
• Inhwa Byun, BSS

• Maternal & Fetal Medicine Physician in San Jose, CA
• Providers in San Jose, CA by specialty
• Maternal & Fetal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.

Verify at the official NPI Registry.