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

Dr. Arthur Mark Altbuch, MD

Individual provider Family Medicine Physician · NPI 1821021429

Dr. Arthur Mark Altbuch, MD is a Geriatric Medicine in Janesville, Wisconsin. Graduated from Albany Medical College of Union University in 1976, 50 years ago. Practices with Mercy Health System Corporation, a 751-clinician group and accepts Medicare assignment. Licensed in Florida and Wisconsin.

Years since qualifying
50
Trained at
Albany Medical College of Union University
Licensed in
FL, WI
In the registry since
2006
Specialties on file
6
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

849 Kellogg Ave
Janesville, WI 53546-2808
Phone: (608) 755-7960
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence 30493 (FL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 41950 (WI)
Geriatric Medicine (Family Medicine) Physician Taxonomy 207QG0300X · Licence 41950 (WI)
Sports Medicine (Family Medicine) Physician Taxonomy 207QS0010X · Licence 41950 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence 30494 (FL)
Sports Medicine (Family Medicine) Physician Taxonomy 207QS0010X · Licence 30494 (FL)

Record details

NPI number1821021429
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 8, 2006
Last updated in NPPESMarch 7, 2023
Mailing address849 Kellogg Ave, Janesville, WI 53546-2808

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesADDICTION MEDICINE, FAMILY PRACTICE, SPORTS MEDICINE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1976 (50 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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