Individual provider Active NPI

Leonard Schmelkin, MSSW

  • Clinical Social Worker
  • Inverness, IL
National Provider Identifier
1508952581
Registry record updated Feb 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
149010945 Issued in MA
Practice address
1644 W Colonial Pkwy
Inverness, IL 60067-1207
Phone
(847) 776-4500
Fax
(847) 776-4724
NPI assigned
Oct 5, 2006
Last updated
Feb 26, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 26, 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 149010945 MA Primary

Addresses

Primary practice location

1644 W Colonial Pkwy
Inverness, IL 60067-1207

Mailing address

1644 W Colonial Pkwy
Inverness, IL 60067-1207
Phone (847) 776-4500

Other identifiers 1

IdentifierTypeStateIssuer
149010945OtherILMSSW

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
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
I20190326002503 MA Practitioner - Clinical Social Worker 6709066624 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
149010945MAMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Thrive Counseling LLC Mental Health CurrentSince Aug 6, 2021 Accepting new patients

Locations

872 Massachusetts Ave
Ste 2-2
Cambridge, MA 02139
Phone (617) 395-5806

85 Main St
Ste 3R
Watertown, MA 02472
Phone (617) 454-4916

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1160006400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1508952581",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1644 W COLONIAL PKWY",
            "city": "INVERNESS",
            "state": "IL",
            "postal_code": "600671207",
            "telephone_number": "847-776-4500",
            "fax_number": "847-776-4724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1644 W COLONIAL PKWY",
            "city": "INVERNESS",
            "state": "IL",
            "postal_code": "600671207",
            "telephone_number": "847-776-4500",
            "fax_number": "847-776-4724"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHMELKIN",
        "first_name": "LEONARD",
        "credential": "MSSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-05",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "149010945",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MSSW",
            "identifier": "149010945",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Inverness, IL

Sources for this page

Verify at the official NPI Registry.