Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Kerry L Ahrens, MD

Individual provider Emergency Medicine Physician · NPI 1639497621

Kerry L Ahrens, MD practises Emergency Medicine in Green Bay, Wisconsin. Graduated from Medical College of Wisconsin in 2010, 16 years ago. Practices with Baycare Aurora LLC, a 199-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
16
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2010
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

2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone: (920) 288-4060
Fax: (920) 288-4067
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 56440 (WI)

Record details

NPI number1639497621
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2010
Last updated in NPPESApril 9, 2024
Certification dateApril 9, 2024

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2010 (16 years in practice)
Group practice Baycare Aurora Llc — 199 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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 patients191
Services billed 223 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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. Those with a page here are linked.

  • Aurora Medical Center Bay Area Hospital · Marinette, WI · listed as Aurora Medical Center Bay Area, Inc
  • Aurora Baycare Medical Ctr Hospital · Green Bay, WI
  • Aurora Medical Ctr Manitowoc County Hospital · Two Rivers, WI

Colleagues at Baycare Aurora LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 199 clinicians in the practice; 12 are shown here.

Other providers in Green Bay