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

Lauren Allison Dennisuk Westerfield, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1053723650

Lauren Allison Dennisuk Westerfield, MD practises Obstetrics/Gynecology in Ann Arbor, Michigan. Graduated from University of Michigan Medical School in 2014, 12 years ago. Practices with Iha Health Services Corporation, a 1,146-clinician group and accepts Medicare assignment. Licensed in Michigan and Ohio.

Years since qualifying
12
Trained at
University of Michigan Medical School
Licensed in
MI, OH
In the registry since
2014
Specialties on file
3
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

4200 Whitehall Dr Ste 330
Ann Arbor, MI 48105-9694
Phone: (734) 434-0477
Fax: (734) 434-6240
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 4301504645 (MI)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 35.133690 (OH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1053723650
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 30, 2014
Last updated in NPPESAugust 6, 2021
Certification dateAugust 6, 2021

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2014 (12 years in practice)
Group practice Iha Health Services Corporation — 1146 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients38
Services billed 78 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Iha Health Services Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1146 clinicians in the practice; 12 are shown here.

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