Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Crystal Lynn Birkenstock, PT
Physical Therapist in Pewaukee, WI · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881868339
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mrs. Crystal Lynn Birkenstock
Credential PT
Sex Female
Practice address W293n3923 Round Hill Cir, Pewaukee, WI, 53072
Phone (262) 369-1506
Enumeration date Apr 16, 2008
Last updated in NPPES Apr 16, 2008
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1728024 (WI) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 40008900 | Medicaid | WI | - |
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.
Frequently asked questions
Where does Crystal Birkenstock practice?
The practice location on file with NPPES is in Pewaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Crystal Birkenstock?
The National Provider Identifier (NPI) for Crystal Birkenstock is 1881868339, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-16.