Individual provider Active NPI

Marvin Den, M.D.

  • Internal Medicine Physician
  • Norwalk, CT
National Provider Identifier
1659363356
Registry record updated Mar 26, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
022759 Issued in CT
Practice address
40 Cross St
4TH FL
Norwalk, CT 06851-4647
Phone
(203) 845-4800
Fax
(203) 845-4873
NPI assigned
Aug 18, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 26, 2018

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Allergy & Immunology Physician 207K00000X 022759 CT
Internal Medicine Physician 207R00000X 022759 CT Primary

Addresses

Primary practice location

40 Cross St
4TH FL
Norwalk, CT 06851-4647

Mailing address

2700 Westchester Ave
Purchase, NY 10577-2547
Phone (914) 607-5730

Other identifiers 1

IdentifierTypeStateIssuer
001227594MedicaidCT

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
022759CTMDInternal Medicine Physician

Interoperability endpoints

  • Direct secure messaging: mden@hiemail.healtheconnections.org

NPI Registry JSON

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

{
    "created_epoch": "1124323200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1522022400000",
    "number": "1659363356",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2700 WESTCHESTER AVE",
            "city": "PURCHASE",
            "state": "NY",
            "postal_code": "105772547",
            "telephone_number": "914-607-5730",
            "fax_number": "914-457-1195"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "40 CROSS ST",
            "address_2": "4TH FL",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "068514647",
            "telephone_number": "203-845-4800",
            "fax_number": "203-845-4873"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEN",
        "first_name": "MARVIN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-18",
        "last_updated": "2018-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207K00000X",
            "taxonomy_group": "",
            "desc": "Allergy & Immunology",
            "state": "CT",
            "license": "022759",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "022759",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001227594",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Norwalk, CT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 2018; 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.