NPPES file of Aug 9, 2026

Melissa Sundberg, LCSW

Clinical Social Worker · O Fallon, IL

Melissa Sundberg, LCSW is a clinical social worker with a practice address in O Fallon, Illinois, and NPI 1992316608, issued on Aug 14, 2020. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992316608
Name
Melissa Sundberg
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
44018 MT
Self-reported in NPPES; status is on the state search
Practice location
3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL 62269
Phone
(618) 233-5480
Enumerated
Aug 14, 2020
Record last updated
Jul 25, 2024
Fax
(618) 222-4792
Medicare enrollment
Enrolled (PECOS I20240807000966); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3 Saint Elizabeth Blvd Ste 4000

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eyasu AdunaStudent in an Organized Health Care Education/Training Program1548062532
  2. Oreoluwa AkinsolaStudent in an Organized Health Care Education/Training Program1285573113
  3. David Bailey, DOStudent in an Organized Health Care Education/Training Program1730870635
  4. Benjamin Beggs, MDFamily Medicine Physician1386174381
  5. Alex BelongyStudent in an Organized Health Care Education/Training Program1144087511
  6. Christina Bereda, D.O.Family Medicine Physician1437386083

Verify Melissa Sundberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Southern Illinois Health Care Foundation IncO Fallon, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa Sundberg among 13,637 clinical social worker records in Illinois

Melissa Sundberg, LCSW is one of 13,637 clinical social worker records with a practice address in Illinois. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 64% of them.

  • NPI issued2020 · 64% of these records are older, 31% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2018 · median 2010 among the 2,895 with a school on file
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 clinical social worker records list a practice address in O Fallon

They are 29 of the 1,077 NPPES records with a practice address in O Fallon, and 13,637 clinical social worker records in Illinois.

The 8 clinical social worker records with the nearest ZIP codes

  1. Scott Baer, LCSWO Fallon, IL 622691639363229
  2. Mallory Cook, MSW, LCSWO Fallon, IL 622691851635338
  3. Ella Duncan, LCSWO Fallon, IL 622691386620375
  4. James Harting, LCSWO Fallon, IL 622691932337409
  5. Diane Jackson, LMSW-ACPO Fallon, IL 622691922160720
  6. Christianne Judy, MSW, LCSWO Fallon, IL 622691023186806
  7. April LomaxO Fallon, IL 622691871884312
  8. Janel Morey-Sassano, LCSWO Fallon, IL 622691316240559

Common questions

What is Melissa Sundberg, LCSW's NPI number?

Melissa Sundberg, LCSW's National Provider Identifier (NPI) is 1992316608, issued on Aug 14, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Sundberg, LCSW located?

The NPPES record lists a practice address at 3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL, 62269. Phone: (618) 233-5480. Providers update this record themselves, so call before visiting.

How can I verify Melissa Sundberg, LCSW's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.