Skip to Main Content
Colorado Attorney General

Phil Weiser

Colorado Attorney General

File A Complaint
  • About Us
    • Attorney General Bio & Photos
    • Vision & Values
    • Senior Staff & Organization
    • Colorado Attorney General Annual Report
    • Attorney General Opinions
    • Budget & Accounting
    • Contact Our Office
  • Sections
    • Administration
    • Civil Litigation & Employment Law
    • Consumer Protection
    • Criminal Appeals
    • Criminal Justice
    • Natural Resources & Environment
    • Division of Community Engagement
    • Revenue & Regulatory Law
    • State Services
  • Careers
    • Attorney & Other Non-Classified Positions
    • Fellowships
    • Internships
    • Classified Staff Positions
    • Other Opportunities to Join our Team
  • Media Center
    • Press Room
    • Colorado Open Records Act – CORA
  • Resources
    • Survivors of Childhood Sexual Abuse
    • Victim Assistance
    • Colorado Privacy Act
    • Data Protection Laws
    • Violence Prevention Trainings and Resources
    • Funding Opportunities
    • Office of Financial Empowerment
    • Code of Colorado Regulations
    • Colorado Revised Statutes
    • Transparency Online Project (TOPS)
  • Licensing
    • Business Resources
    • Collection Agencies & Debt Collectors
    • Credit Services Organizations
    • UCCC Licensing & Notification
    • Debt Management Services Providers
    • Health Club Bonds
    • Repossessors
    • Student Loan Servicer Licensing
    • Telemarketing
  • Recursos en español

Attorney General Phil Weiser secures settlement from Pfizer over illegal migraine drug kickbacks

Jan. 31, 2025 (DENVER)—Attorney General Phil Weiser announced today that Colorado has joined with the federal government and 38 other states and territories in settling allegations (PDF download) of illegal kickbacks against Biohaven Pharmaceutical, a subsidiary of pharmaceutical company Pfizer. As part of the settlement, Pfizer has agreed to pay over $59 million, including a payment of $156,253 to Colorado in restitution and other recoveries.

A coordinated state and federal investigation found that, from March 2020 through September 2022, Biohaven paid kickbacks to health care providers in the form of cash, lavish meals, and speaker payments to get them to prescribe Biohaven’s product, Nurtec, a prescription drug used to treat migraine headaches.

“Medicaid is a critical lifeline for many Coloradans, especially for people who earn low incomes, and that is who is harmed most by misuse and abuse of Medicaid dollars,” said Weiser. “I am committed to holding accountable anyone trying to game the system, including multibillion dollar corporations like Pfizer.”

The investigation found Biohaven paid kickbacks to providers to present at speaker programs with the goal of getting doctors to prescribe Nurtec for Medicaid and other federal healthcare beneficiaries, in violation of the Anti-Kickback Statute, 42 U.S.C. § 1320a- 7b(b). Biohaven paid some providers tens of thousands of dollars, and in some cases more than $100,000, for these programs.

In numerous instances, people who had no educational need to attend the programs, such as the speaker’s family members joined providers in benefiting from the kickbacks. In other instances, providers who attended multiple programs on the same topic, and received expensive meals and drinks paid for by Biohaven, had no educational reason to participate.

The case against Biohaven was initiated by a whistleblower, Patricia Frattasio, a former employee of Biohaven, who will receive a portion of the agreement.

The case is United States et al. ex rel. Frattasio v. Biohaven Pharmaceuticals Holding Company Ltd., Case No. 6:21-CV-06539 and was filed in the U.S. District Court for the Western District of New York.

The Colorado Medicaid Fraud Control Unit receives 75 percent of its funding from the U.S. Department of Health and Human Services under a grant award totaling $3,858,544.00 for Federal Fiscal Year (FY) 2025. The remaining 25 percent, totaling $1,286,181.00 for FY 2025, is funded by the State of Colorado.

Anyone who suspects Medicaid fraud, or any type of fraud or scam, is encouraged to file a complaint with the attorney general’s office at StopFraudColorado.gov.

###

 

Most Recent

Colorado attorney general logo against mountain peaks background and text that reads News from Attorney General Phil Weiser

Attorney General Phil Weiser joins lawsuit challenging unlawful Trump mandates on federal contractors

June 10, 2026 (DENVER) – Attorney General Phil Weiser today joined a coalition of 20 attorneys general in suing the Trump administration over the addition of new terms to federal contracts that – in the name of purging “diversity, equity, […]

Colorado attorney general logo against mountain peaks background and text that reads News from Attorney General Phil Weiser

Attorney General Phil Weiser leads bipartisan coalition urging Congress to continue legal services for veterans, rural Coloradans

June 10, 2026 (DENVER) — Attorney General Phil Weiser today led a bipartisan coalition of 40 attorneys general in urging congressional leaders to continue funding the Legal Services Corporation, the nation’s largest funder of civil legal aid for low-income Americans. […]

Colorado attorney general logo against mountain peaks background and text that reads News from Attorney General Phil Weiser

Attorney General Weiser announces settlement with former COVID-19 test distributor after company used false advertising, overcharged Coloradans

June 10, 2026 (DENVER) — Attorney General Phil Weiser and a bipartisan coalition of 18 attorneys general today announced a $4.87 million settlement with GS Labs, a former COVID-19 rapid testing business, after their marketing and pricing was found to have […]

Office of the Attorney General
Colorado Department of Law
Ralph L. Carr Judicial Building
1300 Broadway, 10th Floor
Denver, CO 80203

(720) 508-6000

Contact the Office of the Attorney General

Contact

ACCESSIBILITY STATEMENT

DECLARACION DE ACCESIBILIDAD

Facebook
Twitter
LinkedIn
Instagram
YouTube
BlueSky

Attorney General Phil Weiser is working to defend Colorado communities against harmful and illegal actions from the federal government.

Learn more: Defending Colorado