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

Dr. Karen M Gremminger, MD

Individual provider Hematology & Oncology Physician · NPI 1174668404

Dr. Karen M Gremminger, MD is a Hematology/Oncology in Globe, Arizona. Graduated from Texas Tech University Health Science Center School of Medicine in 1991, 35 years ago. Practices with San Carlos Apache Healthcare Corporation, a 145-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Wisconsin.

Years since qualifying
35
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
AZ, WI
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5880 S Hospital Dr
Globe, AZ 85501-9447
Phone: (928) 425-3261
Show map & directions

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

Additional practice locations (1)

  • 491 S Washburn St, Oshkosh, WI 54904-6733 — (920) 292-5555

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 64504 (AZ)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 38760 (WI)

Record details

NPI number1174668404
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 21, 2007
Last updated in NPPESJune 13, 2025
Certification dateJune 13, 2025

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice San Carlos Apache Healthcare Corporation — 145 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare