Lynn Sewester Underwood, MA, LCPC

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

License

180.011860 Issued in IL

Practice address

791 Wall St
O Fallon, IL 62269-2087

Phone

(618) 514-1154

NPI assigned

Oct 30, 2018

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

Medicare fee-for-service enrollment

Enrolled in IL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Mental Health Counselor

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Arts

State licenses

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

{
    "created_epoch": "1540857600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763337600000",
    "number": "1700353679",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "791 WALL ST",
            "city": "O FALLON",
            "state": "IL",
            "postal_code": "622692087",
            "telephone_number": "618-514-1154"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "791 WALL ST",
            "city": "O FALLON",
            "state": "IL",
            "postal_code": "622692087",
            "telephone_number": "618-514-1154"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "UNDERWOOD",
        "first_name": "LYNN",
        "middle_name": "SEWESTER",
        "credential": "MA, LCPC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-10-30",
        "last_updated": "2025-11-17",
        "certification_date": "2025-11-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": "IL",
            "license": "180.011860",
            "primary": false
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "IL",
            "license": "180.011860",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Scott Robert Underwood, D.C.
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• Urology of St. Louis, Inc.

• Professional Counselor in O Fallon, IL
• Providers in O Fallon, IL by specialty
• Professional Counselor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 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.