Theresa A. Klein, APNP
Nurse Practitioner · Glendale, WI
Theresa A. Klein, APNP is a nurse practitioner with a practice address in Glendale, Wisconsin, and NPI 1598195372, issued on Nov 15, 2013. Check the license (Wisconsin 5599, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theresa A. Klein
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 5599 WI
Self-reported in NPPES; status is on the state search - Practice location
- 475 W River Woods Pkwy, Glendale, WI 53212
- Phone
- (414) 961-6767
- Enumerated
- Nov 15, 2013
- Record last updated
- Nov 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (414) 961-6727
- Medicare enrollment
- Enrolled (PECOS I20131216001020); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 475 W River Woods Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paula Kiehl, APNPFamily Nurse Practitioner1194433235
- Olivia Krause, PTPhysical Therapist1750122032
- Carlie Owens, DPTPhysical Therapist1306528500
Verify Theresa A. Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nurse practitioner in 2024
14 Medicare Part D claims for 13 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Orthopaedic Hospital OF Wisconsin, LLCGlendale, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa A. Klein among 3,995 nurse practitioner records in Wisconsin
Theresa A. Klein, APNP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 39% of them.
- NPI issued2013 · 39% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 2017 among the 2,701 with a school on file
- Record last updated2016 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Wisconsin
There are 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Glendale → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Haley Dubose, NPMilwaukee, WI 532121467101436
- Erin Gonzalez, APNPGlendale, WI 532121205225125
- Jacqueline Harmon-Askew, NPMilwaukee, WI 532121215143086
- Karen Ivantic, N.P.Milwaukee, WI 532121992812416
- Sharnell Sandlin, NPMilwaukee, WI 532121306289459
- Julia Schumacher, APNPMilwaukee, WI 532121720193923
- Duachy Vang, APNPMilwaukee, WI 532121285157354
- Taylor Villwock, NPMilwaukee, WI 532121639645740
Common questions
What is Theresa A. Klein, APNP's NPI number?
Theresa A. Klein, APNP's National Provider Identifier (NPI) is 1598195372, issued on Nov 15, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Theresa A. Klein, APNP located?
The NPPES record lists a practice address at 475 W River Woods Pkwy, Glendale, WI, 53212. Phone: (414) 961-6767. Providers update this record themselves, so call before visiting.
How can I verify Theresa A. Klein, APNP's license?
NPPES lists Wisconsin license number 5599, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Theresa A. Klein, APNP prescribe under Medicare Part D?
In 2024, Theresa A. Klein, APNP had 14 Medicare Part D claims for 13 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.