Oscar A Gerdner, MD

Primary specialty

Child & Adolescent Psychiatry PhysicianTaxonomy code 2084P0804X

License

60001 Issued in CT

Practice address

30 Old Kings Hwy S
Darien, CT 06820-4551

Phone

(203) 349-8037

Fax

(888) 751-6612

NPI assigned

Jun 6, 2014

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Interoperability endpoints

• Direct secure messaging: ogerdner396481@direct.ynhh.org

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

{
    "created_epoch": "1402012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1685491200000",
    "number": "1801209952",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30 OLD KINGS HWY S",
            "city": "DARIEN",
            "state": "CT",
            "postal_code": "068204551",
            "telephone_number": "203-349-8037",
            "fax_number": "888-751-6612"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "30 OLD KINGS HWY S",
            "city": "DARIEN",
            "state": "CT",
            "postal_code": "068204551",
            "telephone_number": "203-349-8037",
            "fax_number": "888-751-6612"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "Massachusetts General Hospital",
            "address_2": "55 Fruit St.",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "02114",
            "country_code": "US",
            "telephone_number": "617-724-5600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GERDNER",
        "first_name": "OSCAR",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-06",
        "last_updated": "2023-05-31",
        "certification_date": "2023-05-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0804X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": "CT",
            "license": "60001",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Freddys Xavier Garcia, D.C.
• Kate Gardner, R.D.
• Lisa Gardner, LCSW
• Shirley Gedney-Rubel, MS, LPC
• John Ryan Gedney, MD
• Geriatric Psychiatry Associates, PC
• Geriatric Psychiatry Associates, PC
• Geriatric Psychiatry Associates, PC
• Michael G Giambrone, DPT
• Hillery Adelle Gibbons

• Child & Adolescent Psychiatry Physician in Darien, CT
• Providers in Darien, CT by specialty
• Child & Adolescent Psychiatry Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 31, 2023; 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.