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

Gretchen Hartmann, LMFT

Individual provider Marriage & Family Therapist · NPI 1588092084

Gretchen Hartmann, LMFT is a Marriage and Family Therapist in Sioux Falls, South Dakota. Qualified in 2016, 10 years ago. Practices with Carroll Institute, a 2-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
10
Licensed in
SD
In the registry since
2013
What do these letters mean?
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

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Practice location Address checks out

2109 S Norton Ave
Sioux Falls, SD 57105-3730
Phone: (605) 334-2696
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence LMFT 1218 (SD)

Record details

NPI number1588092084
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorNo
NPI enumeratedOctober 18, 2013
Last updated in NPPESOctober 18, 2013
Mailing address2109 S Norton Ave, Sioux Falls, SD 57105-3730

Medicare enrollment

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

Medicare specialtyMARRIAGE AND FAMILY THERAPIST
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Carroll Institute — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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