Individual provider Active NPI

Mark W Nielsen, M.D.

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Sioux City, IA
National Provider Identifier
1922056894
Registry record updated Dec 7, 2009
On this page

Key facts

NPPES NPI Registry
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X
License
036115004 Issued in IA
Practice address
4630 Singing Hills Blvd
Suite a
Sioux City, IA 51106-9702
Phone
(712) 271-8346
Fax
(712) 271-8347
NPI assigned
May 4, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 7, 2009

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X 036115004 IA Primary

Addresses

Primary practice location

4630 Singing Hills Blvd
Suite a
Sioux City, IA 51106-9702

Mailing address

4630 Singing Hills Blvd
Suite a
Sioux City, IA 51106-9702
Phone (712) 271-8346

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
036115004IAMDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Illinois Cardiovascular & Thoracic Surgery, LTD Thoracic Surgery (Cardiothoracic Vascular Surgery) Past Accepting new patients
Cardiovascular Associates PC Past Accepting new patients

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1260144000000",
    "number": "1922056894",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4630 SINGING HILLS BLVD",
            "address_2": "SUITE A",
            "city": "SIOUX CITY",
            "state": "IA",
            "postal_code": "511069702",
            "telephone_number": "712-271-8346",
            "fax_number": "712-271-8347"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4630 SINGING HILLS BLVD",
            "address_2": "SUITE A",
            "city": "SIOUX CITY",
            "state": "IA",
            "postal_code": "511069702",
            "telephone_number": "712-271-8346",
            "fax_number": "712-271-8347"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIELSEN",
        "first_name": "MARK",
        "middle_name": "W",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2009-12-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "IA",
            "license": "036115004",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Sioux City, IA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 7, 2009; 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.