Individual provider Active NPI

Alexander S Mortensen, MD MPH

  • Family Medicine Physician
  • Chicago, IL
National Provider Identifier
1780293969
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
036176512 Issued in IL
Practice address
1460 N Halsted St Ste 504
Chicago, IL 60642-2613
Phone
(312) 926-3627
Fax
(312) 926-3231
NPI assigned
Jul 23, 2020
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 036176512 IL Primary
Family Medicine Physician 207Q00000X 9539 WI

Addresses

Primary practice location

1460 N Halsted St Ste 504
Chicago, IL 60642-2613

Mailing address

1460 N Halsted St Ste 504
Chicago, IL 60642-2613
Phone (312) 926-3627

Electronic endpoints 2

TypeEndpointUseAffiliation
CONNECT URL alexander.mortensen@ascension-external.org Ascension St John Hospital
Direct Messaging Address amortensen1735030@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
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

Enrollment IDStateProvider typePAC IDDetails
I20250911004947 IL Practitioner - Family Practice 2466833686 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1460 N Halsted St
Suite 504
Chicago, IL 60642-2613
Phone (312) 926-6146

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036176512ILMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Northwestern Medical Faculty Foundation CurrentSince Sep 1, 2025 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Sep 1, 2025 Accepting new patients
Central Dupage Physician Group Family Medicine Past Accepting new patients

Locations

Dept 5777
Carol Stream, IL 60122

Carol Stream, IL 60122
Phone (630) 933-3300

1460 N Halsted St
Ste 504
Chicago, IL 60642
Phone (312) 694-1097

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

Organizations & group practices 3

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1595462400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1780293969",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1460 N HALSTED ST STE 504",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606422613",
            "telephone_number": "312-926-3627"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1460 N HALSTED ST STE 504",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606422613",
            "telephone_number": "312-926-3627",
            "fax_number": "312-926-3231"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MORTENSEN",
        "first_name": "ALEXANDER",
        "middle_name": "S",
        "credential": "MD MPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-07-23",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036176512",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "9539",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "alexander.mortensen@ascension-external.org",
            "affiliation": "Y",
            "affiliationName": "Ascension St John Hospital",
            "address_1": "22101 Moross Rd",
            "city": "Detroit",
            "state": "MI",
            "country_code": "US",
            "postal_code": "482362148",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "amortensen1735030@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "815 10th St S",
            "city": "LA Crosse",
            "state": "WI",
            "country_code": "US",
            "postal_code": "546014764",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.