NPPES file of Aug 9, 2026

William C. Mosier, LPC

Mental Health Counselor · Steubenville, OH

William C. Mosier, LPC is a mental health counselor with a practice address in Steubenville, Ohio, and NPI 1982376786, issued on Sep 30, 2021. Check the license (Ohio E.2505702, as entered in NPPES) with the Ohio 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
1982376786
Name
William C. Mosier
Credential
LPC
Primary taxonomy
Mental Health Counselor 101YM0800X
License numbers
E.2505702 OH
C.2103537-TRNE OH
C.2204611 OH
Self-reported in NPPES; status is on the state search
Practice location
1524 Sunset Blvd Ste A, Steubenville, OH 43952
Phone
(740) 264-7751
Enumerated
Sep 30, 2021
Record last updated
Sep 5, 2025
Fax
(740) 264-2422
Medicare enrollment
Enrolled (PECOS I20251114000095); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 mental health counselor records → All 7,764 in Ohio → Look up another NPI →

Also registered at 1524 Sunset Blvd Ste A

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

  1. Stacy Boston, SOCIAL WORKERSocial Worker1003786567
  2. Mary Boyd, LSWClinical Social Worker1407698384
  3. Rhonda Cooper, APRN-BCPsychiatric/Mental Health Nurse Practitioner1326325622
  4. Bryanna GallagherCase Manager/Care Coordinator1922788900
  5. Matthew Grimard, LSWSocial Worker1891476818
  6. Carissa Henry, LPCC-SMental Health Counselor1174848774

Verify William C. Mosier in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license E.2505702    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 Ohio 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. Chrysalis Health Ohio, LLCSteubenville, OH

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

William C. Mosier among 7,764 mental health counselor records in Ohio

William C. Mosier, LPC is one of 7,764 mental health counselor records with a practice address in Ohio. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 64% of them.

  • NPI issued2021 · 64% of these records are older, 31% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2022 · median 2015 among the 798 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 mental health counselor records list a practice address in Steubenville

They are 59 of the 921 NPPES records with a practice address in Steubenville, and 7,764 mental health counselor records in Ohio.

All 7,764 in Ohio → Every provider in Steubenville → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. Raelyn Brown, M.ED, PCC-SSteubenville, OH 439521033310297
  2. Paula Dawson, PCCSteubenville, OH 439521609078096
  3. Andrea Halicky, MSPCCSteubenville, OH 439521063635381
  4. Winifred Keirsey, LPCCSteubenville, OH 439521104037589
  5. Patrick Mayle, M.A.Steubenville, OH 439521275712366
  6. Mary McDaniel, M.A., L.P.C.Steubenville, OH 439521184801227
  7. Elisa McDonald, M.A.,L.P.C.Steubenville, OH 439521821277260
  8. Edwin Mullavey, P.C.C.Steubenville, OH 439521306052253

Common questions

What is William C. Mosier, LPC's NPI number?

William C. Mosier, LPC's National Provider Identifier (NPI) is 1982376786, issued on Sep 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is William C. Mosier, LPC located?

The NPPES record lists a practice address at 1524 Sunset Blvd Ste A, Steubenville, OH, 43952. Phone: (740) 264-7751. Providers update this record themselves, so call before visiting.

How can I verify William C. Mosier, LPC's license?

NPPES lists Ohio license number E.2505702, as entered by the provider. Search the Ohio 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.

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.