Jack Dennis Zandstra
Physician Assistant · Willowbrook, IL
Jack Dennis Zandstra is a physician assistant with a practice address in Willowbrook, Illinois, and NPI 1881362051, issued on Sep 2, 2021. Check the license (Illinois 1171553, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jack Dennis Zandstra
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1171553 IL
Self-reported in NPPES; status is on the state search - Practice location
- 40 75TH St, Willowbrook, IL 60527
- Phone
- (630) 581-5372
- Enumerated
- Sep 2, 2021
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211006002728); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2021
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 40 75TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Abutaha, APNFamily Nurse Practitioner1093456568
- Amy Altenberger, FNPFamily Nurse Practitioner1881374700
- George Antonopoulos, APRNFamily Nurse Practitioner1326660069
- Nimmy Baby, FNPFamily Nurse Practitioner1508502980
- Elizabeth BarnesNurse Practitioner1639918923
- Kathleen Barter, FNP-BCFamily Nurse Practitioner1225923857
Verify Jack Dennis Zandstra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 1171553Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average physician assistant in 2024
135 Medicare Part D claims for 80 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin19 claims
- Prednisone18 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
- Midwest Express Care 2, IncChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Dennis Zandstra among 4,926 physician assistant records in Illinois
Jack Dennis Zandstra is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.
- NPI issued2021 · 66% of these records are older, 29% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2021 · median 2019 among the 3,407 with a school on file
- Record last updated2021 · 35% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 physician assistant records list a practice address in Willowbrook
They are 9 of the 453 NPPES records with a practice address in Willowbrook, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Willowbrook → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Brittany BeachBurr Ridge, IL 605271902234941
- Elmer Capina, PABurr Ridge, IL 605271063408417
- Laura Dean, PA-CBurr Ridge, IL 605271154576718
- Andrea Dwyer, PABurr Ridge, IL 605271831401363
- Rachel KenkelWillowbrook, IL 605271396409397
- Jennifer Majchrowicz, PA-CBurr Ridge, IL 605271558862219
- Jamie Mulrow, PABurr Ridge, IL 605271356790141
- Gjulshana Nurceski, PAWillowbrook, IL 605271497313381
Common questions
What is Jack Dennis Zandstra's NPI number?
Jack Dennis Zandstra's National Provider Identifier (NPI) is 1881362051, issued on Sep 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Jack Dennis Zandstra located?
The NPPES record lists a practice address at 40 75TH St, Willowbrook, IL, 60527. Phone: (630) 581-5372. Providers update this record themselves, so call before visiting.
How can I verify Jack Dennis Zandstra's license?
NPPES lists Illinois license number 1171553, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Jack Dennis Zandstra prescribe under Medicare Part D?
In 2024, Jack Dennis Zandstra had 135 Medicare Part D claims for 80 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.