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About Us

Daniel J. Ocasio Whistleblower Law Group

Meet our Experts

Why Choose The Daniel J. Ocasio Whistleblower Law Group?

Our Mission

The DJO Whistleblower Law Group was created with a mission to assist individuals in reporting fraudulent activity. Comprised of a highly experienced team of whistleblower experts, lawyers, and even former whistleblowers, our firm strives to deliver the highest monetary reward possible for brave individuals who have valuable information that can expose fraud.

Our team has investigated and participated in some of the largest and most groundbreaking whistleblower cases of the past twenty years. Blowing the whistle on illegal misconduct can be both challenging and financially rewarding. Our law firm will guide you through the entire process, from initial investigation through filing a case and potentially, collecting the reward you deserve.

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Daniel J. Ocasio
Whistleblower Law Group

Address

601 Pennsylvania Ave. NW, Suite 900
Washington, DC 20004

E-mail

[email protected]

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Notable Cases


Our team has investigated and participated in some of the largest and most groundbreaking whistleblower cases of the past twenty years.
These cases have resulted in billions in fines collected by the US Government and millions paid in whistleblower rewards.

Apria

Total Settlement
$ 0

The settlement resolves allegations of using multiple fraudulent billing practices pertaining to non-invasive ventilators that were not medically necessary or reasonable.

ResMed

Total Settlement
$ 0

The settlement resolves FCA allegations that the durable medical equipment (DME) manufacturer paid kickbacks to DME suppliers, sleep labs, and other healthcare providers.

SuperCare

Total Settlement
$ 0

The settlement resolves allegations of defrauding public health care programs by billing for ventilator services that were not medically necessary or reasonable.

Fields of Expertise

With Experience in an Array of Industries, Our Experts Have Your Back
Reporting Fraud
Report Pharmaceutical Fraud

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Podiatry Fraud

Take a Stand Against Podiatry Fraud Expose Fraud. Protect Patients. Make a Difference. Signs of Fraud Earn a reward additional Resources ReportingFraud Podiatry fraud costs

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Report Fraud 2024

Report Fraud Fraud schemes occur in nearly every section of the healthcare and financial industries. Who Should Report Fraud? No matter your position, fraud schemes

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Healthcare Fraud 2024

Healthcare Fraud Speak to a Whistleblower Lawyer About Healthcare Fraud Speak to a Whistleblower Lawyer Are you aware of illegal medical billing practices at your

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Blog 2024

Whistleblower Education Explore articles, news, expert perspectives, and other valuable resources to help guide you through the whistleblower experience. Healthcare Fraud Managed Care Fraud Pharmaceutical

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Pharmaceutical Fraud

Speak to an Attorney Do you have a case against a pharmaceutical company? This could involve false claims from insurance companies to

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Financial Fraud

Speak to an Attorney Are you aware of any financial fraud? Work with us to report to the SEC (Securities and Exchange

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Healthcare Fraud

Speak to an Attorney Do you know of a situation where false healthcare claims were made in order for the claimant to

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Respiratory Fraud

Speak to an Attorney Are you aware of fraudulent activity that in the respiratory industry? Some examples of fraud within this sector

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Procurement Fraud

Speak to an Attorney Do you have valuable information that would fall under the procurement fraud sector? Some examples of procurement fraud

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FCPA Fraud

Speak to an Attorney The Foreign Corrupt Practice Act, or FCPA, prohibits bribery towards foreign officials and physicians to enhance business deals.

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Ever-Expanding Areas of Proficiency

There is an Expert Here to Help You

Our team of whistleblower lawyers and investigators have decades of experience practicing in the FCA, SEC, CFTC, and FCPA arenas, so we have seen and heard it all. These cases have resulted in billions in fines collected by the US Government and millions paid in Whistleblower rewards.

Meet With Us Today

We’re Here to Support You

Here at the DJO Whistleblower Law Group, our team of experts has significant experience in assisting whistleblowers in a wide variety of situations with endless knowledge and expertise, as well as knowing how it feels to be the whistleblower themselves. We will be there every step of the way, ensuring we fight as aggressively as possible for you so that you can get the highest reward possible.

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Who We Are

Daniel J. Ocasio

Managing Partner

Whistleblower Attorney, Daniel J. Ocasio, is a former government prosecutor exclusively devoted to representing whistleblowers in actions filed under the Federal False Claims Act (FCA), SEC, CFTC, FCPA, IRS, and other whistleblower programs. With over 100 cases filed, Mr. Ocasio has a strong focus on matters involving healthcare, pharmaceutical, medical device, and financial fraud. Mr. Ocasio has participated in many successful whistleblower settlements and has secured rewards for his clients including his recent role on the litigation team for a $40.5 million settlement with Apria Healthcare after the Durable Medical Equipment (DME) provider was found to be using multiple fraudulent billing practices pertaining to non-invasive ventilators.

Notable Cases and Settlements
APRIA – $40.5 Million
Lincare – $25.5 Million
Philips – $15+ Million
SuperCare – $3.3 Million

Awards
Law Dragon 2021 Plaintiffs Complex Litigation Attorney of the Year 
Lawyers of Distinction Federal False Claims Attorney of the Year (2022 & 2023)
Top 100 Attorneys – 2021 (The Top 100 Magazine)

Education
Cornell Law School Executive Graduate Legal Studies, Antitrust and Monopolistic Practices (2023)
Interamerican School of Law (J.D., 2011)
University of Maryland, College Park (M.B.A., 2007)
University of Maryland, College Park (B.A., 2004)

Clerkships
Hon. Chief Magistrate for the First District of Puerto Rico Justo Arenas

Bar Admissions
District of Columbia
Commonwealth of Puerto Rico
U.S. Court of Appeals for the First Circuit

Kirk Chapman

Of-Counsel

Kirk Chapman practices primarily in the False Claims Act arena representing whistleblowers. As part of his False Claims Act practice, Kirk has represented whistleblowers in cases generating some of the largest recoveries under this Act. These cases include a global settlement against Bristol Meyers Squibb (which resulted in a $515 million recovery for the Medicare and Medicaid programs) and Mason v. Medline (which resulted in an $85 million recovery for the United States and one of the largest settlements in a non intervened case to date).

Kirk has over 20 years of experience litigating class and complex matters in a wide range of practice areas. He began his career focusing on securities fraud and employment discrimination class actions. During this time, Mr. Chapman was one of the principal attorneys handling In re Tyco International, Ltd. Securities Litigation, which recovered over $3.2 billion for the company’s injured shareholders.

Education:
Harvard (B.A., 1985)
University of Chicago (J.D., 1989)

Felix R. Armenteros

Senior Attorney

As an attorney with the DJO Whistleblower Law Group, Mr. Armenteros currently focuses his practice on representing individuals in the U.S. and abroad in False Claims Act (Qui-Tam) cases against companies who have been involved in corporate misconduct or have defrauded the U.S. government.

Additionally, Mr. Armenteros possesses vast experience in handling whistleblower claims, reporting securities fraud and tax fraud with the whistleblower programs of the Securities Exchange Commission (SEC), Internal Revenue Service (IRS), and Commodity Futures Trading Commission (CFTC). Mr. Armenteros takes extraordinary pride in helping his clients expose illegal conduct and ensuring all culpable parties are held responsible.

Education
Pontifical Catholic University Law School (J.D.)
University of Puerto Rico (B.A)

 

Christopher J. Piacentile

Director of Investigations
Whistleblower Expert

Highly skilled certified fraud examiner and certified FCPA expert with over 25 years of experience in the False Claims Act, SEC, CFTC, and FCPA whistleblower arenas. Successfully taking many cases from inception to settlement both as a private citizen and lead investigator for many top tier law firms.

In his career, Chris is well known in the industry having worked on over 200 filed cases for some of the biggest law firms in the United States. A level of experience unmatched by any other certified fraud examiner. Most recently, Chris was the originator in two settlements, Apria Healthcare ($40.5 million) and AbbVie Inc. ($24 million) for fraud. He was named in a Stanford law article as one of the top 10 whistleblowers in America.

Whistleblower clients will tell you that he is straight forward, down to earth, extremely knowledgeable, and provides a level of calmness in walking them through the arduous but rewarding process of blowing the whistle.

“The only thing necessary for the triumph of evil is for good men to do nothing.”― Edmund Burke

Jan T. Negron Duprey

Investigator

Jan Ty Negron Duprey has worked in the financial industry for close to 10 years for national and international accounting firms. He is a certified FCPA expert. Jan Negron developed a unique perspective when it comes to fraud, and decided he would become an Investigator with the DJO Whistleblower Law Group. Together with the Managing Partner, and Director of Investigations, Jan Ty Negron Duprey aspires to champion the fight against Fraud.

Education:
Sacred Heart University (B.A, 2016)