Alexander Chan, M.D., P.C.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

239025 Issued in NY

Legal business name

ALEXANDER CHAN, M.D., P.C.

Practice address

13-17 Elizabeth Street
RM 409
New York, NY 10013

Phone

(212) 334-3999

NPI assigned

Mar 18, 2008

Organization subpart

No

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

Authorized official

Name

Dr. Alexander Chan, M.D.NPI 1568427243

Title

President

Phone

(212) 334-3999

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Enrollment records 1

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Alexander C Chan, M.D.

  • Internal Medicine Physician
  • New York, NY
  • NPI 1568427243
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1205798400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1768176000000",
    "number": "1245401223",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13-17 ELIZABETH STREET",
            "address_2": "SUITE 510",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10013"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13-17 ELIZABETH STREET",
            "address_2": "RM 409",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10013",
            "telephone_number": "212-334-3999"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ALEXANDER CHAN, M.D., P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2008-03-18",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A",
        "authorized_official_last_name": "CHAN",
        "authorized_official_first_name": "ALEXANDER",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "212-334-3999",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "239025",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jonathan Frederick Alex, LCSW
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• Internal Medicine Physician in New York, NY
• Providers in New York, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.