Tammy Giannopoulos, LLC
Tammy Giannopoulos, LLC is a healthcare organization registered as Mental Health Clinic/Center (Including Community Mental Health Center) in Greenfield, WI, holding Type 2 (organization) NPI 1295139012 since 2014. The authorized official on file is Tammy Giannopoulos, Psychotherapist.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1295139012 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Tammy Giannopoulos, LLC |
| Practice address | 4402 S 68TH ST SUITE 100, Greenfield, WI, 53220 |
| Phone | 4143318167 |
| Fax | 4143210552 |
| Enumeration date | 2014-10-22 |
| Last updated in NPPES | 2014-10-22 |
Authorized official
| Name | Tammy Giannopoulos |
|---|---|
| Title | Psychotherapist |
| Phone | 4143318167 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261QM0801X | Mental Health Clinic/Center (Including Community Mental Health Center) | Primary | 7779-123 | WI |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100016425 | Medicaid | WI | — |
Copy-ready billing details
Provider: Tammy Giannopoulos, LLC NPI: 1295139012 Taxonomy: 261QM0801X (Mental Health Clinic/Center (Including Community Mental Health Center)) Address: 4402 S 68TH ST SUITE 100, Greenfield, WI, 53220
Verify this record
Cross-check NPI 1295139012 against the authoritative CMS record: view Tammy Giannopoulos, LLC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What is the NPI number for Tammy Giannopoulos, LLC?
Who is the authorized official for Tammy Giannopoulos, LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-10-22.