Maren Kimi Leibowitz, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

125.073644 Issued in IL

Practice address

251 E Huron St
Chicago, IL 60611-3055

Phone

(312) 926-2000

NPI assigned

Mar 18, 2019

Last updated

Jun 3, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY, IL2 enrollments

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 2

Specialty

Emergency Medicine

Education

University of Virginia School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwestern Memorial Hospital Hospital, Chicago, IL, CCN 140281

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359

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

• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group NPD
• Icahn School of Medicine at Mount Sinai

  dba Rehabilitation Fluoroscopy Medicine Department of Mount Sinai

  • Rehabilitation Practitioner
  • New York, NY
  • NPI 1477899078
  Medicare reassignment NPD
• Icahn School of Medicine at Mount Sinai

  dba Mount Sinai Now

  • Emergency Medicine Physician
  • New York, NY
  • NPI 1679083984
  Medicare reassignment NPD
• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD
• Icahn School of Medicine at Mount Sinai

  dba Emergency Medical Associates

  • Emergency Medicine Physician
  • New York, NY
  • NPI 1346908662
  NPD
• Icahn School of Medicine at Mount Sinai

  dba New York Eye & Ear Optical Shop

  • Eyewear Supplier
  • New York, NY
  • NPI 1760227466
  NPD

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

• Northwestern Memorial Hospital

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1497859649
  Care Compare affiliation

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748908800000",
    "number": "1861951907",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055",
            "telephone_number": "312-926-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "211 E Ontario St Ste 200",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606113284",
            "country_code": "US",
            "telephone_number": "312-694-7000",
            "fax_number": "312-926-6274",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEIBOWITZ",
        "first_name": "MAREN",
        "middle_name": "KIMI",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-18",
        "last_updated": "2025-06-03",
        "certification_date": "2025-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036159100",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "125.073644",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Donald Lei, MD
• Sophie Leib, PHD
• Jaclyn Leibforth
• Tatiana-Ruth Leibman
• Rachel Nicole Leibovitz, DC
• Zoe Leibowitz, PSY.D.
• Robert James Leider, M.D.
• Stefanie Leider, P.T.
• Yannek Isaac Leiderman, M.D., PH.D.
• Alexander Scott Leidner, M.D.

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 2025; 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.