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

Adam P Karewicz, MD

Individual provider Internal Medicine Physician · NPI 1114035755

Adam P Karewicz, MD practises Internal Medicine in Fond Du Lac, Wisconsin. Qualified in 1994, 32 years ago. Practices with Agnesian Healthcare Inc, a 390-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
32
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

420 E Division St
Fond Du Lac, WI 54935-4560
Phone: (920) 926-8420
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 42560 (WI)

Record details

NPI number1114035755
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESDecember 16, 2020
Certification dateDecember 16, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Agnesian Healthcare Inc — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients296
Services billed 1,154 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

  • University Of Wi Hospitals & Clinics Authority Hospital · Madison, WI · listed as University of Wisconsin Hospitals and Clinics Authority
  • Waupun Memorial Hospital Hospital · Waupun, WI
  • Ssm Health St Agnes Hospital-Fond Du Lac Hospital · Fond Du Lac, WI
  • Ssm Health At Home Home Health - Fond Du Lac Home health agency · Fond Du Lac, WI
  • Ssm Health At Home Hospice Hospice · Fond Du Lac, WI

Colleagues at Agnesian Healthcare Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 390 clinicians in the practice; 12 are shown here.

Other providers in Fond Du Lac