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

Individual provider Surgery Physician · NPI 1235371725

Margaret Riesenberg-Karges, MD is a General Surgery in Tucson, Arizona. Graduated from Saint Louis University School of Medicine in 2009, 17 years ago. Accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
17
Trained at
Saint Louis University School of Medicine
Licensed in
AZ
In the registry since
2009
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

6879 N Oracle Rd Ste 133
Tucson, AZ 85704-4285
Phone: (520) 638-8311
Fax: (520) 638-8321
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 52314 (AZ)

Record details

NPI number1235371725
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2009
Last updated in NPPESMarch 5, 2025
Certification dateMarch 5, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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