Kathy Osterhaus-Kegel, P.A.
Physician Assistant · West Allis, WI
Kathy Osterhaus-Kegel, P.A. is a physician assistant with a practice address in West Allis, Wisconsin, and NPI 1144297722, issued on Mar 2, 2006. Check the license (Wisconsin 651-023, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathy Osterhaus-Kegel
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 651-023 WI
Self-reported in NPPES; status is on the state search - Practice location
- 555 S 108TH St, West Allis, WI 53214
- Phone
- (414) 566-6400
- Enumerated
- Mar 2, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (414) 566-3866
- Entity
- Type 1 · individual
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Verify Kathy Osterhaus-Kegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 651-023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
174 Medicare Part D claims for 17 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Fluoxetine Hcl11 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.
Kathy Osterhaus-Kegel among 3,475 physician assistant records in Wisconsin
Kathy Osterhaus-Kegel, P.A. is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 76% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2026 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 physician assistant records list a practice address in West Allis
They are 32 of the 1,362 NPPES records with a practice address in West Allis, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in West Allis → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Krystal Buttitta, PA-CWest Allis, WI 532141417638362
- Lauren Flint, PA-CWest Allis, WI 532141992904510
- Hana KoesterWest Allis, WI 532141750974754
- Nathan LesnickWest Allis, WI 532141336872761
- Amanda Luna, PA-CWest Allis, WI 532141043768658
- Kajal Malkan, PAWest Allis, WI 532141952609299
- Kerri Murphy, PACWest Allis, WI 532141629247887
- Jacob Papke, PA-CWest Allis, WI 532141982177135
Common questions
What is Kathy Osterhaus-Kegel, P.A.'s NPI number?
Kathy Osterhaus-Kegel, P.A.'s National Provider Identifier (NPI) is 1144297722, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Osterhaus-Kegel, P.A. located?
The NPPES record lists a practice address at 555 S 108TH St, West Allis, WI, 53214. Phone: (414) 566-6400. Providers update this record themselves, so call before visiting.
How can I verify Kathy Osterhaus-Kegel, P.A.'s license?
NPPES lists Wisconsin license number 651-023, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Kathy Osterhaus-Kegel, P.A. prescribe under Medicare Part D?
In 2024, Kathy Osterhaus-Kegel, P.A. had 174 Medicare Part D claims for 17 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.