Juan Constantino Fernandez, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

115969 Issued in NY

Practice address

19 E Market St
Red Hook, NY 12571-1424

Phone

(845) 758-8896

NPI assigned

Jul 7, 2005

Last updated

Jul 13, 2026By the provider in NPPES

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

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1120694400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1851399539",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 E MARKET ST",
            "city": "RED HOOK",
            "state": "NY",
            "postal_code": "125711424",
            "telephone_number": "845-758-8896"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19 E MARKET ST",
            "city": "RED HOOK",
            "state": "NY",
            "postal_code": "125711424",
            "telephone_number": "845-758-8896"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FERNANDEZ",
        "first_name": "JUAN",
        "middle_name": "CONSTANTINO",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-07",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "115969",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MVP HEALTH PLAN",
            "identifier": "117097",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00214613",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Internal Medicine Physician in Red Hook, NY
• Providers in Red Hook, 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 Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.