John E O'Toole, M.D.

Primary specialty

Neurological Surgery PhysicianTaxonomy code 207T00000X

Practice address

1725 W Harrison St
Suite 970
Chicago, IL 60612-3841

Phone

(312) 942-6644

NPI assigned

May 8, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

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

Neurosurgery

Education

Harvard Medical School, 1999

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
• Northshore University Healthsystem - Evanston Hospital Hospital, Evanston, IL, CCN 140010

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jotoolemdneurosurg2789@direct.rush.rush-health.com

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.

• Rush University Medical Group

  dba Rush University Internists

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542
  Medicare reassignment Care Compare group NPD
• Rush University Medical Center

  dba Rush Oak Brook

  • Internal Medicine Physician
  • Oak Brook, IL
  • NPI 1801375696

  Neurological Surgery

  NPD
• Gibson Community Hospital Association

  dba Gibson Area Hospital and Health Services

  • Critical Access Hospital
  • Gibson City, IL
  • NPI 1114935681
  NPD (past)

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

• Endeavor Health Clinical Operations

  dba Endeavor Health Evanston Hospital

  • General Acute Care Hospital
  • Evanston, IL
  • NPI 1184670549
  Care Compare affiliation
• 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": "1147046400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1619926672",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "address_2": "SUITE 970",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-6644"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "address_2": "SUITE 970",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-6644"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'TOOLE",
        "first_name": "JOHN",
        "middle_name": "E",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-08",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kathleen Mary O'Sullivan
• Katie O'Sullivan
• Sean Anthony O'Sullivan, LCPC
• Cheryl O'Toole, PSY.D.
• Jennifer O'Toole, APN CRNA
• O&N Care, LLC (None)
• O2 Solutions Inc
• Oak & Ivy Counseling LLC
• Oak and Magnolia Therapy LLC
• Oak Brook Center for Health II

• Neurological Surgery Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Neurological Surgery Physician in Illinois

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