Individual provider Active NPI

Grant N Underhill, LCSW

  • Clinical Social Worker
  • Saint Louis, MO
National Provider Identifier
1053982579
Registry record updated Jul 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
2023041447 Issued in MO
Practice address
1001 Lynch St
Saint Louis, MO 63118-1818
Phone
(314) 535-5600
NPI assigned
Jul 6, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 28, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 2023041447 MO Primary

Addresses

Primary practice location

1001 Lynch St
Saint Louis, MO 63118-1818

Mailing address

PO Box 844715
Kansas City, MO 64184-4715
Phone (417) 761-5214

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO
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

Enrollment IDStateProvider typePAC IDDetails
I20231031002373 MO Practitioner - Clinical Social Worker 4688020498 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
2023041447MOMDClinical Social Worker

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1625529600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785196800000",
    "number": "1053982579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 844715",
            "city": "KANSAS CITY",
            "state": "MO",
            "postal_code": "641844715",
            "telephone_number": "417-761-5214",
            "fax_number": "417-761-5065"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 LYNCH ST",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631181818",
            "telephone_number": "314-535-5600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "UNDERHILL",
        "first_name": "GRANT",
        "middle_name": "N",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-07-06",
        "last_updated": "2026-07-28",
        "certification_date": "2026-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MO",
            "license": "2023041447",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.