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

Derek Granum, LCSW

Individual provider Clinical Social Worker · NPI 1982259230

Derek Granum, LCSW is a Clinical Social Worker in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2019, 7 years ago. Accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
7
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2019
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

2400 W 49th St
Sioux Falls, SD 57105-6581
Phone: (605) 312-8700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 4958 (SD)

Record details

NPI number1982259230
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 5, 2019
Last updated in NPPESMay 18, 2022
Certification dateMay 18, 2022

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2019 (7 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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