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

Dr. Christopher Joseph Sumey, MD

Individual provider Internal Medicine Physician · NPI 1588836548

Dr. Christopher Joseph Sumey, MD is a Hematology/Oncology in Sioux Falls, South Dakota. Graduated from Washington University School of Medicine in 2008, 18 years ago. Practices with Sanford Medical Center, a 842-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado and South Dakota.

Years since qualifying
18
Trained at
Washington University School of Medicine
Licensed in
CO, SD
In the registry since
2008
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

1309 W 17th St Ste Ste 101
Sioux Falls, SD 57104-8805
Phone: (605) 328-8000
Fax: (605) 328-8001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 9500 (SD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 49919 (CO)

Record details

NPI number1588836548
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2008
Last updated in NPPESAugust 14, 2015

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Sanford Medical Center — 842 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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