Elle O'Brien

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

085-008813 Issued in IL

Practice address

1725 W Harrison St Ste 1010
Chicago, IL 60612-3845

Phone

(312) 226-2371

Fax

(312) 563-0715

NPI assigned

Feb 7, 2022

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

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

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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.

• Rush University Medical Group

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542
  Medicare reassignment Care Compare group 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": "1644192000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745884800000",
    "number": "1881348092",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST STE 1010",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123845",
            "telephone_number": "312-226-2371"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST STE 1010",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123845",
            "telephone_number": "312-226-2371",
            "fax_number": "312-563-0715"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "ELLE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-02-07",
        "last_updated": "2025-04-29",
        "certification_date": "2025-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085-008813",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cathleen J O'Brien I, LPC
• Colleen O'Brien, LCPC
• Daniel Thomas O'Brien, DO
• Dennis Kelly O'Brien, LCSW, CADC
• Elizabeth Anne O'Brien, FNP-BC, PMHNP-BC
• Emily Jan O'Brien, M.S. CCC-SLP
• Erin Elizabeth O'Brien, APN
• Frankie O'Brien, MS, RD, CSSD, LDN
• Heidi O'Brien
• Jenna Leigh O'Brien, RN

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 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.