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Dynamic Medical Services (Lewis, Wand, Nobbe, Zager)


Dynamic Medical Services
United States v. Stuart Lewis (20-CR-20188)
United States v. Dennis Nobbe (20-MJ-3236)
United States v. Paul Wand (20-CR-20189)
United States v. Mark Zager (21-CR-20463)

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Court Assigned: These cases are assigned to the U.S. District Court for the Southern District of Florida. The Lewis and Wand cases are being heard in the Wilkie D. Ferguson, Jr. United States Courthouse, 400 North Miami Avenue, Miami, Florida 33128. The assigned judges for these cases are Magistrate Judge Jacqueline Becerra (USA v. Wand,USA v. Nobbe and USA v. Zager), Judge Darrin P. Gayles (USA v. Lewis).

Latest Update: On March 24, 2022, defendant Mark Zager, a medical doctor practicing in Florida, was sentenced to 24 months in prison, followed by three years of supervised release and $ 172,891 restitution. Zager pleaded guilty on September 27, 2021.

At this time the prosecution team is in the process of compiling a list of victim restitution claims to provide to the clerk of the court. If you wish to submit a claim and have not yet done so, please contact us no later than  by sending a Victim Impact Statement to

On March 18, 2021, defendant Stuart Lewis was sentenced to time served to be followed by three years of supervised release. Lewis pleaded guilty on November 17, 2020.

On January 28, 2021, defendant Paul Wand was sentenced to three years imprisonment to be followed by five years supervised release. Wand pleaded guilty on October 9, 2020.

Defendant Dennis Nobbe passed away on September 14, 2020. The case against Nobbe was dismissed on October 13, 2020.

Overview: Lewis, Nobbe, Wand, and Zager (collectively, “the defendants”) were charged for participating in a criminal conspiracy to defraud patients through CareCredit, a credit card program offered to consumers by Synchrony Bank (“Synchrony”) to finance out-of-pocket healthcare expenses.  Nobbe provided chiropractic treatments through Dynamic Medical Services, Inc. (“DMS”), a Florida-based corporation. Unlike Lewis,Wand, and Zager, who were medical doctors, Nobbe was a chiropractic physician. Relevant court filings allege that the Defendants conspired to defraud Medicare and Synchrony Bank, a federally insured financial institution, by filing false and fraudulent claims in order to profit from patients using CareCredit. Synchrony had previously ejected Nobbe from the CareCredit program in 2010 for engaging in “risky” transactions. To circumvent this restriction, Nobbe allegedly encouraged Lewis,Wand, and Zager to submit false and fraudulent applications to Synchrony to become approved healthcare providers in the CareCredit network.

These applications falsely represented that Lewis,Wand, and Zager would be treating and charging CareCredit patients, when, in fact, Nobbe was the one purportedly treating and charging same patients.  Nobbe, moreover, allegedly encouraged DMS patients to open CareCredit account but failed to inform these patients about the high interest rates associated with CareCredit charges and concealed from these patients the fact that he was not an authorized CareCredit provider.   Nobbe routinely charged patients for services that purportedly would be provided in the future but that, in fact, were often not provided.  Nobbe further allegedly paid kickbacks and bribes to Wand to submit claims to Medicare that falsely and fraudulently represented that they had performed certain services when, in truth and in fact, those services had been provided by Nobbe. Nobbe is also accused of conspiring to defraud the U.S. Government by submitting false and fraudulent applications to the Small Business Administration for Paycheck Protection Program loans against the backdrop of the COVID-19 pandemic.

For more information about United States v. Stuart Lewis, please see below:
Criminal Information
Plea Agreement

For more information about United States v. Dennis Nobbe, please see below:
Press Release – July 29, 2020
Criminal Complaint

For more information about United States v. Paul Wand, please see below:
Criminal Information
Plea Agreement

For more information about United States v. Mark Zager, please see below:
Criminal Information
Plea Agreement

Victim Impact Statement:  If you would like to submit a Victim Impact Statement you may do so by mailing the Victim Impact Statement below to: Victim Witness Unit, U.S. Department of Justice, Criminal Division, Fraud Section, 10th & Constitution Avenue, NW, Bond Building, Room 4416, Washington, DC 20530. You also may submit the Victim Impact Statement via email at or by fax at: (202) 514-3708.  Please note: As a result of the COVID-19 pandemic response, statements submitted by regular mail and fax may be delayed. For that reason, victims are highly encouraged to submit victim impact statements by e-mail to:

Victim Impact Statement (PDF)

The information on this website will be updated as new developments arise in the case. If you have any questions, please call the Victim Assistance Line toll-free at (888) 549-3945 or email us at victimassistance.fraud@usdoj.govPlease note: As a result of the COVID-19 pandemic response, the most reliable method of contacting victim-witness staff is via e-mail. If you need to speak to someone over the phone, let victim-witness staff know in your e-mail, and someone will call you as soon as practicable.

Presumption of Innocence: It is important to keep in mind that defendants are presumed innocent until proven guilty and that presumption requires both the court and our office to take certain steps to ensure that justice is served.

Crime Victims’ Rights Act and Right to Retain Counsel: The Crime Victims’ Rights Act (18 U.S.C. § 3771) applies only to victims of the counts charged in federal court, and thus individuals may not be able to exercise all of these rights if the crime of which the individual is a victim was not charged. Section 3771(c)(2) of this Act requires that we advise you that you have the right to retain counsel. Although the statute specifically sets forth your right to seek advice of an attorney with regard to your rights under the statute, there is no requirement that you retain counsel. The Government may not recommend any specific counsel, nor can the Government (or the Court) pay for counsel to represent you. Government attorneys represent the United States.

If you elect to obtain counsel to represent your interests, please have your attorney notify this office in writing at: U.S. Department of Justice, Criminal Division, Fraud Section, 10th & Constitution Avenue, NW, Bond Building, 4th Floor, Washington, DC 20530, Attention: Victim Witness Unit; fax: (202) 514-3708; or email: If you elect not to retain counsel to represent your interests, you do not need to do anything.

Updated September 27, 2023