Active NPI
Melissa Zielinske, LCSW
- Clinical Social Worker
- Hamilton, MT
National Provider Identifier
1831554849
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- BBH-LCSW-LIC-29
- Practice address
- 110B Pinckney St
Hamilton, MT 59840-2558 - Phone
- (406) 802-2401
- NPI assigned
- Dec 17, 2015
- Last updated
- Jan 28, 2026
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | BBH-LCSW-LIC-29 | MT | Primary |
| Mental Health Counselor | 101YM0800X | BBH-LCSW-LIC-29 | MT |
Addresses
Primary practice location
110B Pinckney St
Hamilton, MT 59840-2558
Mailing address
PO Box 2303
Hamilton, MT 59840-4303
Phone (406) 802-2401
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MT
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20180219000795 | MT | Practitioner - Clinical Social Worker | 4284995002 | Practice locations: Hamilton, MT |
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Social Worker
- Education
- Other, 2013
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
Practice addresses (Care Compare)
110 B Pinckney St
Hamilton, MT 59840-2558
Phone (406) 802-2401
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Melissa Zielinske LLC | Current | Accepting new patients |
Locations
110 Pinckney St
#B
Hamilton, MT 59840
Phone (406) 802-2401
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": "1450310400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1769558400000",
"number": "1831554849",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2303",
"city": "HAMILTON",
"state": "MT",
"postal_code": "598404303",
"telephone_number": "406-802-2401"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "110B PINCKNEY ST",
"city": "HAMILTON",
"state": "MT",
"postal_code": "598402558",
"telephone_number": "406-802-2401"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ZIELINSKE",
"first_name": "MELISSA",
"credential": "LCSW",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2015-12-17",
"last_updated": "2026-01-28",
"certification_date": "2026-01-28",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "MT",
"license": "BBH-LCSW-LIC-29",
"primary": true
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "MT",
"license": "BBH-LCSW-LIC-29",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Hamilton, MT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 28, 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.
- 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.