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

David R. Isaacson, MD

Individual provider Internal Medicine Physician · NPI 1073562179

David R. Isaacson, MD is a Hospitalist in Janesville, Wisconsin. Graduated from University of Rochester School of Medicine and Dentistry in 1991, 35 years ago. Practices with Mercy Health System Corporation, a 751-clinician group and accepts Medicare assignment. Licensed in New York and Wisconsin.

Years since qualifying
35
Trained at
University of Rochester School of Medicine and Dentistry
Licensed in
NY, WI
In the registry since
2006
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

1000 Mineral Point Ave
Janesville, WI 53548-2940
Phone: (608) 756-6261
Fax: (068) 756-6236
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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 56921-20 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 1907851 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence 1907851 (NY)

Record details

NPI number1073562179
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 8, 2006
Last updated in NPPESFebruary 5, 2015

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1991 (35 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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