Elizabeth Anne O'Brien, FNP-BC, PMHNP-BC

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

277002791 Issued in IL

Practice address

213 W Institute PL Ste 500
Chicago, IL 60610-8792

Phone

(630) 283-2107

Fax

(630) 559-7619

NPI assigned

Feb 7, 2017

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Other names 1

• Elle O'Brien Professional name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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

Medicare enrollment (NPD)

Enrolled

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.

• Mind-Body Pediatric Psychiatry

  • Psychiatric/Mental Health Nurse Practitioner
  • Chicago, IL
  • NPI 1114755014
  NPD Authorized official
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1003856592
  Medicare reassignment
• Cartwheel Health Services PC

  • Child & Adolescent Psychiatry Physician
  • Cambridge, MA
  • NPI 1912633975
  NPD (past)
• Ozarks Medical Center

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)

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

{
    "created_epoch": "1486425600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1992243265",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "213 W INSTITUTE PL STE 500",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606108792",
            "fax_number": "630-559-7619"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "213 W INSTITUTE PL STE 500",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606108792",
            "telephone_number": "630-283-2107",
            "fax_number": "630-559-7619"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Childrens Pl",
            "address_2": "Dept Psychiatry",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631101002",
            "country_code": "US",
            "telephone_number": "314-286-1700",
            "fax_number": "314-286-1777",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "ELIZABETH",
        "middle_name": "ANNE",
        "credential": "FNP-BC, PMHNP-BC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-02-07",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "IL",
            "license": "277002791",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MO",
            "license": "2017002570",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "420057517",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "1 Childrens Pl",
            "address_2": "Dept Psychiatry",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "ELLE",
            "last_name": "O'BRIEN",
            "credential": "PMHNP-BC, FNP-BC",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

• Bridget L O'Brien, DPT
• Cathleen J O'Brien I, LPC
• Colleen O'Brien, LCPC
• Daniel Thomas O'Brien, DO
• Dennis Kelly O'Brien, LCSW, CADC
• Elle O'Brien
• Emily Jan O'Brien, M.S. CCC-SLP
• Erin Elizabeth O'Brien, APN
• Frankie O'Brien, MS, RD, CSSD, LDN
• Heidi O'Brien

• Psychiatric/Mental Health Nurse Practitioner in Chicago, IL
• Providers in Chicago, IL by specialty
• Psychiatric/Mental Health Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 26, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.