Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jeffrey D Tiemstra, MD

Individual provider Family Medicine Physician · NPI 1336252238

Jeffrey D Tiemstra, MD is a Family Practice in Elkhorn, Wisconsin. Graduated from Rush Medical College of Rush University in 1984, 42 years ago. Practices with Aurora Medical Group, Inc, a 3,741-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
42
Trained at
Rush Medical College of Rush University
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

W3985 County Road Nn
Elkhorn, WI 53121-4337
Phone: (262) 741-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 64749 (WI)

Record details

NPI number1336252238
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESAugust 7, 2023
Certification dateAugust 7, 2023
Mailing addressPo Box 735044, Chicago, IL 60673-5044

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1984 (42 years in practice)
Group practice Aurora Medical Group, Inc. — 3741 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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