Leonard Korn, M.D.

Primary specialty

Forensic Psychiatry PhysicianTaxonomy code 2084F0202X

License

5152 Issued in NH

Practice address

330 Borthwick Ave
Suite 111
Portsmouth, NH 03801-4174

Phone

(603) 431-5350

Fax

(603) 431-3691

NPI assigned

Nov 15, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NH

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

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

{
    "created_epoch": "1163548800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1851464333",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "330 BORTHWICK AVE",
            "address_2": "SUITE 111",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038014174",
            "telephone_number": "603-431-5350",
            "fax_number": "603-431-3691"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 BORTHWICK AVE",
            "address_2": "SUITE 111",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038014174",
            "telephone_number": "603-431-5350",
            "fax_number": "603-431-3691"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KORN",
        "first_name": "LEONARD",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-15",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084F0202X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Forensic Psychiatry",
            "state": "NH",
            "license": "5152",
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NH",
            "license": "5152",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Meghan Kathryn Knight-Dupuis
• Ann Knight
• Savannah Knisely, DPT
• Min Jung Ko, DDS
• Jennifer Koop, MD
• Justin Korsupsin
• Jay Frederick Kosegarten
• Michael Kotsonis
• Aristomenis Kounavis, MD
• George R Kousaie, MD

• Forensic Psychiatry Physician in Portsmouth, NH
• Providers in Portsmouth, NH by specialty
• Forensic Psychiatry Physician in New Hampshire

• 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.