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

Robin G. Sontheimer, PLLC

Organization Clinical Social Worker · NPI 1861989659

Robin G. Sontheimer, PLLC is a Clinical Social Worker in Austin, Texas. Registered with an NPI since 2018.

In the registry since
2018
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5900 Balcones Dr Ste 100
Austin, TX 78731-4298
Phone: (585) 484-1954
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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

Record details

NPI number1861989659
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Robin Sontheimer — Lcsw/Practice Owner · (585) 484-1954
Other names Robin Gardner Psychotherapy, Pllc
NPI enumeratedApril 17, 2018
Last updated in NPPESOctober 26, 2023
Certification dateOctober 26, 2023
Mailing address5900 Balcones Drive, Suite 100, Austin, TX 78731-4298

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