Thomas Diestler, RPH
Pharmacist · Waukesha, WI
Thomas Diestler, RPH is a pharmacist with a practice address in Waukesha, Wisconsin, and NPI 1821367566, issued on Dec 27, 2011. Check the license (Wisconsin 9499, as entered in NPPES) with the Wisconsin board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas Diestler
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 9499 WI
Self-reported in NPPES; status is on the state search - Practice location
- 221 E Sunset Dr, Waukesha, WI 53189
- Phone
- (262) 542-3981
- Enumerated
- Dec 27, 2011
- Record last updated
- Dec 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 5,397 in Wisconsin → Look up another NPI →
Also registered at 221 E Sunset Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lina Abu-HatoumPharmacist1497437982
- Ann Bjerke, RPHPharmacist1518244029
- Susan Hanosh, RPHPharmacist1053698423
- Mary KrausPharmacist1942603469
- Jay Litzenberg, RPHPharmacist1750659090
- Lisa NguyenPharmacist1093349326
Verify Thomas Diestler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 9499Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Thomas Diestler among 5,397 pharmacist records in Wisconsin
Thomas Diestler, RPH is one of 5,397 pharmacist records with a practice address in Wisconsin. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 67% newer
- In a Medicare fileNo · 16% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
74 pharmacist records list a practice address in Waukesha
They are 74 of the 2,814 NPPES records with a practice address in Waukesha, and 5,397 pharmacist records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,397 in Wisconsin → Every provider in Waukesha → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Ann Bjerke, RPHWaukesha, WI 531891518244029
- Lisa Brandt, RPHWaukesha, WI 531891619367273
- Addam Fisher, PHARMDWaukesha, WI 531891669766614
- Breanna Gilbert, PHARM-DWaukesha, WI 531891194116533
- Susan Hanosh, RPHWaukesha, WI 531891053698423
- Mary KrausWaukesha, WI 531891942603469
- Betty Liberski, RPHWaukesha, WI 531891629469887
- Jay Litzenberg, RPHWaukesha, WI 531891750659090
Common questions
What is Thomas Diestler, RPH's NPI number?
Thomas Diestler, RPH's National Provider Identifier (NPI) is 1821367566, issued on Dec 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Diestler, RPH located?
The NPPES record lists a practice address at 221 E Sunset Dr, Waukesha, WI, 53189. Phone: (262) 542-3981. Providers update this record themselves, so call before visiting.
How can I verify Thomas Diestler, RPH's license?
NPPES lists Wisconsin license number 9499, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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. 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.