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

MS. Theresa L Marschik, LCSW

Individual provider Clinical Social Worker · NPI 1669864583

MS. Theresa L Marschik, LCSW is a Clinical Social Worker in Denver, Colorado. Practices as a sole proprietor. Licensed in Colorado and Oklahoma.

Licensed in
CO, OK
In the registry since
2015
Specialties on file
2
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2090 S Pearl St
Denver, CO 80210-4043
Phone: (405) 246-6800
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence CSW.09925217 (CO)
Clinical Social Worker Taxonomy 1041C0700X · Licence 4666 (OK)

Record details

NPI number1669864583
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMarch 2, 2015
Last updated in NPPESMarch 19, 2026
Certification dateMarch 19, 2026

Other providers in Denver