Peak Therapeutics, Ltd
Peak Therapeutics, Ltd is a healthcare organization registered as Specialist in Wilmette, IL, holding Type 2 (organization) NPI 1558390849 since 2006. The authorized official on file is James Buskirk, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1558390849 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Peak Therapeutics, Ltd |
| Other name | <Unavail> |
| Practice address | 3545 LAKE AVE, SUITE 103, Wilmette, IL, 60091 |
| Phone | 8479062025 |
| Fax | 8475125064 |
| Enumeration date | 2006-07-01 |
| Last updated in NPPES | 2013-02-20 |
Authorized official
| Name | James Buskirk |
|---|---|
| Title | President |
| Phone | 8479062025 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 060004284 | IL |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01634372 | Other | IL | BCBS GROUP NO. |
| 200573902 | Other | IL | TRANSIT REHABILITATION CENTERS OF CHICAGO |
| 1618443 | Other | IL | BCBS GROUP NO. |
| 236963283001 | Medicaid | IL | — |
| DC3951 | Other | IL | MEDICARE RAILROAD-PALMETTO GBA |
Copy-ready billing details
Provider: Peak Therapeutics, Ltd NPI: 1558390849 Taxonomy: 174400000X (Specialist) Address: 3545 LAKE AVE, SUITE 103, Wilmette, IL, 60091
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1538101423 | James Buskirk | Individual | Specialist | Wilmette, IL |
| 1366450645 | Laurie Roston | Individual | Social Worker | Wilmette, IL |
| 1114936663 | Susanne Swisher | Individual | Psychologist | Wilmette, IL |
| 1396754982 | Kelly Matthews-Pluta | Individual | Clinical Social Worker | Wilmette, IL |
| 1457362220 | Beth Levine | Individual | Clinical Social Worker | Wilmette, IL |
| 1538170436 | Jay Karant | Individual | Clinical Social Worker | Wilmette, IL |
| 1396858676 | Ewa Nevler | Individual | Clinical Social Worker | Wilmette, IL |
| 1881707149 | Sydney Reed | Individual | Clinical Social Worker | Wilmette, IL |
Verify this record
Cross-check NPI 1558390849 against the authoritative CMS record: view Peak Therapeutics, Ltd 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
Who is the authorized official for Peak Therapeutics, Ltd?
What is the NPI number for Peak Therapeutics, Ltd?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-02-20.