NPPES file of Aug 9, 2026

Rachel Kooistra, PA

Physician Assistant · West Allis, WI

Rachel Kooistra, PA is a physician assistant with a practice address in West Allis, Wisconsin, and NPI 1366927576, issued on Oct 3, 2018. Check the license (Wisconsin 4507-23, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366927576
Name
Rachel Kooistra
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
4507-23 WI
Self-reported in NPPES; status is on the state search
Practice location
8901 W Lincoln Ave FL 1, West Allis, WI 53227
Phone
(414) 329-5656
Enumerated
Oct 3, 2018
Record last updated
Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20231106003554); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Rachel Kooistra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 4507-23
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

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93% fewer Medicare Part D claims than the average physician assistant in 2024

58 Medicare Part D claims for 26 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Rachel Kooistra58
  2. Specialty average830

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

  1. OU Health Partners IncOklahoma City, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rachel Kooistra among 3,475 physician assistant records in Wisconsin

Rachel Kooistra, PA 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 2018, is newer than 61% of them.

  • NPI issued2018 · 61% of these records are older, 34% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2018 · median 2016 among the 2,491 with a school on file
  • Record last updated2021 · 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.

The 8 physician assistant records with the nearest ZIP codes

  1. Katherine Anderson, PA-CWest Allis, WI 532271780059394
  2. Mark Dawydowycz, PAWest Allis, WI 532271487059481
  3. Patrick Geiger, PA-CWest Allis, WI 532271982992111
  4. Melissa Jensen, PA-CWest Allis, WI 532271336474717
  5. Shea Jurgens, PA-CWest Allis, WI 532271922489376
  6. Debra Kneisler, PACWest Allis, WI 532271902879810
  7. Heidi Kohler, PA-CWest Allis, WI 532271225089063
  8. Jean Lauterbach, PA-CWest Allis, WI 532271396852844

Common questions

What is Rachel Kooistra, PA's NPI number?

Rachel Kooistra, PA's National Provider Identifier (NPI) is 1366927576, issued on Oct 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Kooistra, PA located?

The NPPES record lists a practice address at 8901 W Lincoln Ave FL 1, West Allis, WI, 53227. Phone: (414) 329-5656. Providers update this record themselves, so call before visiting.

How can I verify Rachel Kooistra, PA's license?

NPPES lists Wisconsin license number 4507-23, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Rachel Kooistra, PA prescribe under Medicare Part D?

In 2024, Rachel Kooistra, PA had 58 Medicare Part D claims for 26 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.