Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Mrs. Marilyn R Gebel-Sitts, LCSW

Individual provider Clinical Social Worker · NPI 1437135639

Mrs. Marilyn R Gebel-Sitts, LCSW is a Clinical Social Worker in Fort Mill, South Carolina. Qualified in 1972, 54 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
54
Licensed in
DC, MD, VA
In the registry since
2005
Specialties on file
3
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

1091 Market St
Fort Mill, SC 29708-6496
Phone: (703) 728-4095
Fax: (703) 642-6082
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 0904000774 (VA)
Clinical Social Worker Taxonomy 1041C0700X · Licence LC300051 (DC)
Clinical Social Worker Taxonomy 1041C0700X · Licence 00816 (MD)

Record details

NPI number1437135639
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedDecember 20, 2005
Last updated in NPPESNovember 7, 2024
Certification dateNovember 7, 2024

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1972 (54 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients17
Services billed 325 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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