Warren Fournier, MD
NPI 1992770580 · Psychiatry Physician · Fairview Heights, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Fournier, MD is a Psychiatry Physician provider in Fairview Heights, IL (NPI 1992770580).
Provider details
- NPI number
- 1992770580
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036115099 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 69 | 21 |
| Trazodone Hcl | 46 | 21 |
| Aripiprazole | 40 | 20 |
| Clonazepam | 37 | 15 |
| Gabapentin | 37 | 15 |
| Risperidone | 33 | 12 |
| Lamotrigine | 33 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$130 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2010-12-15
Frequently asked questions
- What is Warren Fournier's NPI number?
- Warren Fournier's National Provider Identifier (NPI) is 1992770580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Fournier's specialty?
- Warren Fournier is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Fournier located?
- Warren Fournier's practice location on file with NPPES is 125 N Ruby Ln, Fairview Heights, IL 62208-1926.
- What is Warren Fournier's phone number?
- The practice phone number listed in the NPPES registry for Warren Fournier is (618) 398-4226.
- Does Warren Fournier accept Medicare?
- Warren Fournier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Fournier's NPI active?
- Yes — Warren Fournier's NPI (1992770580) is active in the NPPES registry as of the last update on 2010-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.