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

Individual provider Clinical Social Worker · NPI 1447634746

Mr. Mark Thomas Schillinger, LCSW is a Clinical Social Worker in Clayton, Missouri. Qualified in 2011, 15 years ago. Practices with Sonder Counseling LLC, a 10-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
15
Licensed in
MO
In the registry since
2015
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

230 S Bemiston Ave Ste 1006
Clayton, MO 63105-1907
Phone: (314) 925-2634
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1034 S Brentwood Blvd Ste 555, Richmond Heights, MO 63117-1265 — (314) 648-8189

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 2016016564 (MO)

Record details

NPI number1447634746
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJuly 16, 2015
Last updated in NPPESJune 11, 2025
Certification dateJune 11, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Sonder Counseling Llc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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