Ariel Leifer, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

036132189 Issued in IL

Practice address

1300 W Belmont Ave Ste 100
Chicago, IL 60657-3200

Phone

(773) 975-8900

Fax

(773) 975-8901

NPI assigned

Jun 10, 2010

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Family Practice

Education

University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Rush University Medical GroupGroup PAC ID 5496658874, 1,521 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Rush University Medical Center Hospital, Chicago, IL, CCN 140119

Merit-based Incentive Payment System (MIPS)

Final score

93.28 of 100Reported as group

Quality

73.53

Promoting interoperability

100

Improvement activities

40

Cost

70.73

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aleifer17224@uihealth.direct-ci.com

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.

• Rush University Medical Group

  dba Rush University Internists

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542

  Family Medicine

  Medicare reassignment Care Compare group NPD
• The Board of Trustees of the University of Illinois

  • Anatomic Pathology Physician
  • Chicago, IL
  • NPI 1386863819
  Medicare reassignment NPD
• Rush University Medical Center

  dba Rush Oak Brook

  • Internal Medicine Physician
  • Oak Brook, IL
  • NPI 1801375696
  NPD
• The Board of Trustees of the University of Illinois

  dba Occupational Health Service Institute (OHSI)

  • Occupational Medicine Physician
  • Chicago, IL
  • NPI 1043727571
  NPD
• The Board of Trustees of the University of Illinois

  • Family Medicine Physician
  • Chicago, IL
  • NPI 1215156344
  NPD

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

• Rush University Medical Center

  • Children's Hospital
  • Chicago, IL
  • NPI 1801908728
  Care Compare affiliation
• Rush University Medical Center

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1932213600
  Care Compare affiliation

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

{
    "created_epoch": "1276128000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768176000000",
    "number": "1891015004",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1300 W BELMONT AVE STE 100",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606573200",
            "telephone_number": "773-975-8900",
            "fax_number": "773-975-8901"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1300 W BELMONT AVE STE 100",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606573200",
            "telephone_number": "773-975-8900",
            "fax_number": "773-975-8901"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEIFER",
        "first_name": "ARIEL",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-06-10",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036132189",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Robert James Leider, M.D.
• Stefanie Leider, P.T.
• Yannek Isaac Leiderman, M.D., PH.D.
• Alexander Scott Leidner, M.D.
• Joseph M Leiendecker
• Leigh H Roberts, MD, LTD
• Leigh Kim Consulting, LLC (LGBTQ Psychological Services, LLC)
• Gretta Leigh
• Heather Leigh, LCPC, ATR-BC
• Sarah Leight

• Family Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Family Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.