Kathleen E. Idstein, PA
Physician Assistant · Milwaukee, WI
Kathleen E. Idstein, PA is a physician assistant with a practice address in Milwaukee, Wisconsin, and NPI 1609003995, issued on Jun 15, 2009. Check the license (Wisconsin 2426, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathleen E. Idstein
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2426 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-6850
- Enumerated
- Jun 15, 2009
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (414) 805-6851
- Medicaid ID
- 1609003995 WI
- Entity
- Type 1 · individual
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen E. Idstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average physician assistant in 2024
321 Medicare Part D claims for 87 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Omeprazole54 claims
- Linzess29 claims
- Famotidine27 claims
- Pantoprazole Sodium19 claims
- Budesonide Dr12 claims
- Dicyclomine Hcl12 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.
821 physician assistant records list a practice address in Milwaukee
They are 821 of the 18,389 NPPES records with a practice address in Milwaukee, and 3,475 physician assistant records in Wisconsin.
All 821 in Milwaukee → All 3,475 in Wisconsin → Every provider in Milwaukee →
Other physician assistant records in Wisconsin
- Amber Abraham, PA-CGreen Bay, WI1598993297
- Roopa AchuriNeenah, WI1225531635
- Carleen Acker, PA-CMadison, WI1447514773
- Lauren Ackerman, PA-CCudahy, WI1992357982
- Jocelyn Acompanado, PA-CSheboygan, WI1770521486
- Kora Adam, PA-CBurlington, WI1952666554
- Stephanie Adamczyk, PAMilwaukee, WI1063007441
- Kristen Adamo, PANew Berlin, WI1437179520
- Beth Adams, PA-CMequon, WI1801237540
- Eric Adams, PAGreen Bay, WI1528445087
Common questions
What is Kathleen E. Idstein, PA's NPI number?
Kathleen E. Idstein, PA's National Provider Identifier (NPI) is 1609003995, issued on Jun 15, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen E. Idstein, PA located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-6850. Providers update this record themselves, so call before visiting.
How can I verify Kathleen E. Idstein, PA's license?
NPPES lists Wisconsin license number 2426, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Kathleen E. Idstein, PA prescribe under Medicare Part D?
In 2024, Kathleen E. Idstein, PA had 321 Medicare Part D claims for 87 beneficiaries; the average among physician assistant prescribers was 830. 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.