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

Geffrey E Cavallin, MD

Individual provider Hospitalist Physician · NPI 1225061625

Geffrey E Cavallin, MD practises Internal Medicine in Green Bay, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1992, 34 years ago. Practices with St Vincent Hospital-Hospital Sisters-Third Order of St Francis, a 594-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
34
Trained at
University of Iowa, Rj & L Carver College of Medicine
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

835 S Van Buren St
Green Bay, WI 54301-3526
Phone: (920) 496-4700
Fax: (920) 431-3267
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 42743 (WI)

Record details

NPI number1225061625
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2006
Last updated in NPPESMarch 8, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice St Vincent Hospital-Hospital Sisters-Third Order Of St Francis — 594 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Pacemaker insertion or repair 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients167
Services billed 189 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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
  • Dickinson County Memorial Hospital Hospital · Iron Mountain, MI
  • Door County Medical Center Hospital · Sturgeon Bay, WI
  • Osf St Francis Hospital And Medical Group Hospital · Escanaba, MI
  • St Vincent Hospital Hospital · Green Bay, WI

Colleagues at St Vincent Hospital-Hospital Sisters-Third Order of St Francis

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 594 clinicians in the practice; 12 are shown here.

Other providers in Green Bay