Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Theresa A. Klein, APNP
Nurse Practitioner in Glendale, WI · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598195372
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Registry record
Entity type Individual (Type 1)
Name Theresa A. Klein
Credential APNP
Sex Female
Practice address 475 W River Woods Pkwy, Glendale, WI, 53212
Phone (414) 961-6767
Fax (414) 961-6727
Enumeration date Nov 15, 2013
Last updated in NPPES Nov 21, 2016
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 5599 (WI) Primary
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
What is the NPI number for Theresa Klein?
The National Provider Identifier (NPI) for Theresa Klein is 1598195372, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theresa Klein practice?
The practice location on file with NPPES is in Glendale, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Orthopaedic Hospital of Wisconsin, LLC General Acute Care Hospital · Glendale, WI NPI 1669584983 Ryan Ungerecht Physical Therapist · Glendale, WI NPI 1871059204 Brandon Stout Certified Registered Nurse Anesthetist · Glendale, WI NPI 1144876780 Mariah Cloutier Orthopedic Physical Therapist · Glendale, WI NPI 1891448361 Paula Kiehl Family Nurse Practitioner · Glendale, WI NPI 1194433235 Margaret Brauer Physical Therapist · Glendale, WI NPI 1649977026 Melanie Keys Physical Therapy Assistant · Glendale, WI NPI 1780379578 Carlie Owens Physical Therapist · Glendale, WI NPI 1306528500
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-21.