Warren Fournier, MD
Psychiatry Physician · Fairview Heights, IL
Warren 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 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
- Entity
- Type 1 · individual
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 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
12% fewer Medicare Part D claims than the average psychiatry physician in 2024
889 Medicare Part D claims for 159 beneficiaries, against an average of 1,010 among the 32,287 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, mostly food and beverage; the largest payer was Indivior Inc.. The 12,691 providers of this specialty with any payment received $4,902.45 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.
One hospital or facility affiliation
- Southlake Community Mental Health Center IncMerrillville, IN
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Psychiatry Physician providers in Illinois
There are 2,003 psychiatry physician records in Illinois.
All 2,003 in Illinois → Every provider in Fairview Heights →
Other psychiatry physician records in Illinois
- Alexandra Aaronson, M.D.Chicago, IL1881937928
- Anthony Abadir, MDOak Park, IL1295312551
- Jeff Abbott, M.D.Chicago, IL1265887509
- Kathryn AbbottChicago, IL1295537561
- Gil Abelita, MDBloomington, IL1619986551
- Dinuk Abeysekera, M.D.North Chicago, IL1366616534
- Patrick Abler, DOSpringfield, IL1770158537
- Jenny Abraham, APNDowners Grove, IL1396322392
- Rohit Abraham, MD, MPH, MATChicago, IL1013478932
- Constantin Abuzatoaie, M.D.Hoffman Estates, IL1477817062
Common questions
What is Warren Fournier, MD's NPI number?
Warren 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 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 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 Fournier, MD prescribe under Medicare Part D?
In 2024, Warren Fournier, MD had 889 Medicare Part D claims for 159 beneficiaries; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.