Active NPI
Leonard Schmelkin, MSSW
- Clinical Social Worker
- Inverness, IL
National Provider Identifier
1508952581
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 149010945
- 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, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 149010945 | Other | IL | MSSW |
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
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 149010945 | MA | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Thrive Counseling LLC | Mental Health | Current | 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
- 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.