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

Leonard Mark Gutnik, MD

Individual provider Internal Medicine Physician · NPI 1841265543

Leonard Mark Gutnik, MD is an Internal Medicine Physician in Sioux Falls, South Dakota. Works from 2 locations. Licensed in South Dakota.

Licensed in
SD
In the registry since
2006
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 1120
Sioux Falls, SD 57108-6021
Phone: (605) 504-1700
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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 57105-1023 — (605) 322-5750

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2478 (SD)

Record details

NPI number1841265543
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 17, 2006
Last updated in NPPESOctober 31, 2019

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