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.

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Warren Fournier, MD

NPI 1992770580 · Psychiatry Physician · Fairview Heights, IL

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)

Practice location

125 N Ruby Ln

Fairview Heights, IL 62208-1926

Phone: (618) 398-4226

Fax: (618) 398-1759

Street-level locationGet directions

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Mailing address

125 N Ruby Ln

Fairview Heights, IL 62208-1926

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 036115099 (IL)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(92/100 index)

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.

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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments