NPPES file of Aug 9, 2026

Lynn Sewester Underwood, MA, LCPC

Professional Counselor · O Fallon, IL

Lynn Sewester Underwood, MA, LCPC is a professional counselor with a practice address in O Fallon, Illinois, and NPI 1700353679, issued on Oct 30, 2018. Check the license (Illinois 180.011860, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1700353679
Name
Lynn Sewester Underwood
Credential
MA, LCPC
Primary taxonomy
Professional Counselor 101YP2500X
License number
180.011860 IL
Self-reported in NPPES; status is on the state search
Practice location
791 Wall St, O Fallon, IL 62269
Phone
(618) 514-1154
Enumerated
Oct 30, 2018
Record last updated
Nov 17, 2025
Medicare enrollment
Enrolled (PECOS I20251209000365); 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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8 nearest professional counselor records → All 9,508 in Illinois → Look up another NPI →

Also registered at 791 Wall St

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

  1. Rachel Morgan, LCSWClinical Social Worker1649681677
  2. Allison Smith, MSN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1821805011

Verify Lynn Sewester Underwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 180.011860    Check 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

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Lynn Sewester Underwood among 9,508 professional counselor records in Illinois

Lynn Sewester Underwood, MA, LCPC is one of 9,508 professional counselor records with a practice address in Illinois. 10% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 52% of them.

  • NPI issued2018 · 52% of these records are older, 42% newer
  • In a Medicare fileNo · 10% of these records are
  • In the CMS Doctors and Clinicians fileYes · 15% of these records are
  • Graduated2015 · median 2012 among the 1,382 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 professional counselor records list a practice address in O Fallon

They are 31 of the 1,077 NPPES records with a practice address in O Fallon, and 9,508 professional counselor records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 9,508 in Illinois → Every provider in O Fallon → Professional Counselor nationwide →

The 8 professional counselor records with the nearest ZIP codes

  1. Amanda Benson, M.A., LCPCShiloh, IL 622691467838151
  2. Amy Champion, LCPCO Fallon, IL 622691285782474
  3. Jane Fitzpatrick, MAPC, LCPCO Fallon, IL 622691619231529
  4. John Frisbie, MAMHO Fallon, IL 622691639588478
  5. Cindy Gullo, L.C.P.CO Fallon, IL 622691750720512
  6. Steve Heitkamp, DMIN, LCPCO Fallon, IL 622691609867712
  7. Stefanie Johnson, LCPCO Fallon, IL 622691871821074
  8. Tina Kampwerth, LCPCShiloh, IL 622691942544168

Common questions

What is Lynn Sewester Underwood, MA, LCPC's NPI number?

Lynn Sewester Underwood, MA, LCPC's National Provider Identifier (NPI) is 1700353679, issued on Oct 30, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Lynn Sewester Underwood, MA, LCPC located?

The NPPES record lists a practice address at 791 Wall St, O Fallon, IL, 62269. Phone: (618) 514-1154. Providers update this record themselves, so call before visiting.

How can I verify Lynn Sewester Underwood, MA, LCPC's license?

NPPES lists Illinois license number 180.011860, as entered by the provider. 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.