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

Mrs. Gretchen Dorr Horst, LCSW

Individual provider Clinical Social Worker · NPI 1104913821

Mrs. Gretchen Dorr Horst, LCSW is a Clinical Social Worker in Herndon, Virginia. Qualified in 1980, 46 years ago. Offers telehealth. Licensed in Virginia.

Years since qualifying
46
Licensed in
VA
In the registry since
2006
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

429B Carlisle Dr # 205
Herndon, VA 20170-4802
Phone: (703) 391-7380
Fax: (703) 783-8655
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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 0904001567 (VA)

Record details

NPI number1104913821
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESJune 28, 2024
Certification dateJune 28, 2024

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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