Warren J. Fournier, MD
Psychiatry Physician · Fairview Heights, IL
Warren J. Fournier, MD is a psychiatry physician with a practice address in Fairview Heights, Illinois, and NPI 1992770580, issued on Feb 17, 2006. Check the license (Illinois 036115099, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Warren J. Fournier
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 036115099 IL
Self-reported in NPPES; status is on the state search - Practice location
- 125 N Ruby LN, Fairview Heights, IL 62208
- Phone
- (618) 398-4226
- Enumerated
- Feb 17, 2006
- Record last updated
- Dec 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (618) 398-1759
- Medicare enrollment
- Enrolled (PECOS I20130510000528); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1999
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 125 N Ruby LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Frazier, LCSWClinical Social Worker1538476742
- Carlene Hempen, LCSWClinical Social Worker1821012469
- Kathleen Hitpas, LCSWClinical Social Worker1700033354
- Marian Jackson, LCSWClinical Social Worker1427394485
- Byron Loy, LCPC, PLPC, CRADCMental Health Counselor1043426752
- Susan Norsigian, LCPCMental Health Counselor1194939256
Verify Warren J. Fournier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036115099Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average psychiatry physician in 2024
889 Medicare Part D claims for 159 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Quetiapine Fumarate69 claims
- Trazodone Hcl46 claims
- Aripiprazole40 claims
- Clonazepam37 claims
- Gabapentin37 claims
- Lamotrigine33 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $130.14
7 payments; by number, the most common kind was food and beverage; the largest payer was Indivior Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southlake Community Mental Health Center IncMerrillville, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren J. Fournier among 2,147 psychiatry physician records in Illinois
Warren J. Fournier, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1999 · median 2004 among the 877 with a school on file
- Record last updated2010 · 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 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Illinois
There are 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Fairview Heights → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Bhawna Sharma, M.DCentreville, IL 622071134546690
- Marshall Katzman, M.D.East Saint Louis, IL 622051306853676
- Christopher Johnson, MDEast Saint Louis, IL 622011205975448
- Christopher Loynd, D.O.East Saint Louis, IL 622011003965955
- Narsimha Muddasani, M.D.East Saint Louis, IL 622011548366263
- Randy Jung, M.D.Belleville, IL 622201205917176
- Jacqueline Aregood, MDBelleville, IL 622231154302115
- Jeffrey Chalfant, DOBelleville, IL 622231811935166
Common questions
What is Warren J. Fournier, MD's NPI number?
Warren J. Fournier, MD's National Provider Identifier (NPI) is 1992770580, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Warren J. Fournier, MD located?
The NPPES record lists a practice address at 125 N Ruby LN, Fairview Heights, IL, 62208. Phone: (618) 398-4226. Providers update this record themselves, so call before visiting.
How can I verify Warren J. Fournier, MD's license?
NPPES lists Illinois license number 036115099, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Warren J. Fournier, MD prescribe under Medicare Part D?
In 2024, Warren J. Fournier, MD had 889 Medicare Part D claims for 159 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.