Mark Farrell O'Brien, MS, LCPC

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

License

180008079 Issued in IL

Practice address

605 N Michigan Ave FL 4
Chicago, IL 60611-3141

NPI assigned

May 13, 2010

Last updated

Sep 20, 2019By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

State licenses

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

{
    "created_epoch": "1273708800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1568937600000",
    "number": "1932427986",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "605 N MICHIGAN AVE FL 4",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113141",
            "telephone_number": "312-316-7703"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "605 N MICHIGAN AVE FL 4",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113141"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "MARK",
        "middle_name": "FARRELL",
        "credential": "MS, LCPC",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-05-13",
        "last_updated": "2019-09-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "IL",
            "license": "180008079",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristen N O'Brien, DPT
• Laurie Ann O'Brien, OTR/L
• Leah O'Brien, LCPC
• Margaret Sutton O'Brien
• Maria E O'Brien, OTD, OTR/L
• Megan Marie O'Brien, PA-C
• Patricia O'Brien, OTR/L
• Rebecca O'Brien
• Regina O'Brien, M.D.
• Samantha O'Brien, PMHNP-BC

• Professional Counselor in Chicago, IL
• Providers in Chicago, IL by specialty
• Professional Counselor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 2019; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.