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

Melissa Sundberg, LCSW

Individual provider Clinical Social Worker · NPI 1992316608

Melissa Sundberg, LCSW is a Clinical Social Worker in O Fallon, Illinois. Qualified in 2018, 8 years ago. Practices with Southern Illinois Healthcare Foundation Inc, a 118-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
8
Licensed in
MT
In the registry since
2020
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

3 Saint Elizabeth Blvd Ste 4000
O Fallon, IL 62269-1284
Phone: (618) 233-5480
Fax: (618) 222-4792
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 44018 (MT)

Record details

NPI number1992316608
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedAugust 14, 2020
Last updated in NPPESJuly 25, 2024
Certification dateJuly 25, 2024

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Southern Illinois Healthcare Foundation Inc — 118 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in O Fallon