Hadrian Holder, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

64338 Issued in CT

Practice address

428 Columbus Avenue
New Haven, CT 06519-1233

Phone

(203) 503-3000

Fax

(203) 503-3224

NPI assigned

May 21, 2015

Reactivated

Dec 2, 2025

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 CT

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

Specialty

Family Practice

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

South-West Community Health Center IncGroup PAC ID 2466445200, 52 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bridgeport Hospital Hospital, Bridgeport, CT, CCN 070010

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Interoperability endpoints

• Direct secure messaging: hholder575539@direct.ochin.org

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.

• South-West Community Health Center, Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Bridgeport, CT
  • NPI 1699703686
  Medicare reassignment Care Compare group
• City of Bridgeport

  • State or Local Public Health Clinic/Center
  • Bridgeport, CT
  • NPI 1730436783
  Medicare reassignment

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1649260845
  Care Compare affiliation
• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1992910152
  Care Compare affiliation

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

{
    "created_epoch": "1432166400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775174400000",
    "number": "1083093181",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "46 ALBION ST",
            "city": "BRIDGEPORT",
            "state": "CT",
            "postal_code": "066052602",
            "telephone_number": "203-330-6000",
            "fax_number": "203-330-6008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "428 COLUMBUS AVENUE",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191233",
            "telephone_number": "203-503-3000",
            "fax_number": "203-503-3224"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLDER",
        "first_name": "HADRIAN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-05-21",
        "last_updated": "2026-04-03",
        "certification_date": "2026-04-03",
        "deactivation_date": "2025-11-11",
        "reactivation_date": "2025-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CT",
            "license": "64338",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "PA",
            "license": "MT208836",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "004235900",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Erica Crawford Holahan, LCSW
• Marybeth Holak, ARNP
• Elizabeth Holcomb, RN
• Margaret Elizabeth Holden, R.D.
• Eric K Holder, M.D.
• Mary Howard Holderness, MD
• Holding Space PLLC
• Cynthia J Holland-Toftness, APRN
• Eliza Springfield Holland, CNM
• Laura Holley

• Family Medicine Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Family Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 3, 2026; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.