Individual provider Active NPI

Alexander Ruiz, MD

  • Family Medicine Physician
  • Chicago, IL
National Provider Identifier
1144916479
Registry record updated Aug 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
036.181255 Issued in IL
Practice address
2355 S Western Ave
Chicago, IL 60608-3837
Phone
(773) 254-1400
NPI assigned
Apr 11, 2023
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207Q00000X 036.181255 IL Primary

Addresses

Primary practice location

2355 S Western Ave
Chicago, IL 60608-3837

Mailing address

2355 S Western Ave
Chicago, IL 60608-3837
Phone (773) 254-1400

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
I20230513000039 IL Order and Referring Only - Family PracticePractitioner - Family Practice 4880050095

National Provider Directory

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

Interoperability endpoints

  • Direct secure messaging: aruiz192870@uihealth.direct-ci.com

NPI Registry JSON

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

{
    "created_epoch": "1681171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787788800000",
    "number": "1144916479",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2355 S WESTERN AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606083837",
            "telephone_number": "773-254-1400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2355 S WESTERN AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606083837",
            "telephone_number": "773-254-1400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RUIZ",
        "first_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-04-11",
        "last_updated": "2026-08-27",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036.181255",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.