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

Gregory Eric Mumm, MD

Individual provider Internal Medicine Physician · NPI 1548228810

Gregory Eric Mumm, MD is a Rheumatology in Sioux Falls, South Dakota. Graduated from University of North Dakota School of Medicine in 2004, 22 years ago. Practices with Avera McKennan, a 962-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in South Dakota and Wisconsin.

Years since qualifying
22
Trained at
University of North Dakota School of Medicine
Licensed in
SD, WI
In the registry since
2006
Specialties on file
2
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

6100 S Louise Ave Ste 1130
Sioux Falls, SD 57108-6021
Phone: (605) 504-1600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1301 S. Cliff Ave, Sioux Falls, SD 57105-1032 — (605) 322-6625

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 7481 (SD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 48817 (WI)

Record details

NPI number1548228810
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESOctober 31, 2019

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Avera McKennan — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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