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

Mrs. Joann Marlier, LPCC, LSW

Individual provider Mental Health Counselor · NPI 1487705570

Mrs. Joann Marlier, LPCC, LSW is a Mental Health Counselor in Warren, Ohio. Qualified in 1993, 33 years ago. Practices with Columbiana County Mental Health Clinic, a 21-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
33
Licensed in
OH
In the registry since
2007
Specialties on file
2
What do these letters mean?
LPCC — Licensed Professional Clinical Counselor
The title some states use for a licensed clinical counsellor.
LSW — Licensed Social Worker
A state-licensed social worker.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

318 Mahoning Ave NW
Warren, OH 44483-4605
Phone: (330) 395-9563
Fax: (330) 393-5975
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

Social Worker (primary) Taxonomy 104100000X · Licence S4959 (OH)
Mental Health Counselor Taxonomy 101YM0800X · Licence E2378 (OH)

Record details

NPI number1487705570
Entity typeIndividual (Type 1)
GenderFemale
Credentials LPCC , LSW
Sole proprietorNo
NPI enumeratedJanuary 15, 2007
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Columbiana County Mental Health Clinic — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients19
Services billed 27 a service is one billed item, such as a visit, a test or a procedure
Average patient age65

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Columbiana County Mental Health Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 21 clinicians in the practice; 12 are shown here.

Other providers in Warren