Lauren Bonzelaar, MD, MS

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

036.149779 Issued in IL

Practice address

251 E Huron St Ste 5-704
Chicago, IL 60611-2908

Phone

(312) 695-0061

Fax

(312) 695-9013

NPI assigned

Apr 7, 2016

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

Anesthesiology

Education

R Franklin University of Med & Sci/Chicago Medical School, 2015

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

Merit-based Incentive Payment System (MIPS)

Final score

95.19 of 100Reported as apm

Quality

83.05

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

State licenses

Practice roles

Locations

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.

• Northwestern Medical Faculty Foundation

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group NPD
• Midwest Anesthesia Partners, LLC

  • Anesthesiology Physician
  • Chicago, IL
  • NPI 1255380184
  Medicare reassignment NPD
• Northwestern Medical Faculty Foundation

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD
• Central Dupage Physician Group

  • Family Medicine Physician
  • Carol Stream, IL
  • NPI 1033149844
  NPD (past)

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": "1459987200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1396109153",
    "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": "606112908"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "251 E HURON ST STE 5-704",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112908",
            "telephone_number": "312-695-0061",
            "fax_number": "312-695-9013"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BONZELAAR",
        "first_name": "LAUREN",
        "credential": "MD, MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-07",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IL",
            "license": "036.149779",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tiffany Bonter
• Gabriella Bonucci
• Julianne Murphy Bonwit, LCSW, MSW
• Stephanie Bonza, PSY.D.
• Stephen Michael Bonzak, L.AC.
• Christian Scott Bonzheim, PA-C
• Roger Boodoo, MD
• Annette C Boogerd
• Alyssa Katlin Book, CCC-SLP
• Zachary R. Book, MD

• Anesthesiology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Anesthesiology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 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.