The federal indictment names Walter Presha Junior and Koby Evans in alleged patient-referral and kickback conduct, while distinguishing their conspiracy and payment-receipt charges from the substantive health care fraud counts filed only against Leigh Tesar.
WASHINGTON, DC, August 22, 2026 — Two Tampa Bay-area registered nurses occupy central but legally distinct positions in the federal prosecution surrounding Sarasota nurse practitioner Leigh Tesar, with prosecutors accusing them of supplying Medicare patients in return for payments routed through a wound-product distributor.
Walter Presha Junior, identified by federal authorities as an Ellenton resident, and Koby Evans, identified as an Apollo Beach resident, allegedly presented themselves as allograft sales representatives while actually operating as compensated sources of patient referrals.
The government contends that their access to Medicare beneficiaries helped feed a wound-care operation that submitted more than $118 million in claims during approximately eighteen months, generating more than $61 million in payments to Tesar and Primecare.
Their alleged roles are narrower than Tesar’s but remain consequential, because each nurse faces a conspiracy charge and an individual kickback-receipt charge tied to money that prosecutors say rewarded referrals for federally reimbursed allograft treatment.
Neither Presha nor Evans is named in the five substantive health care fraud counts filed against Tesar, an important distinction when assessing individual exposure, evidence, defenses, and responsibility for the indictment’s much larger aggregate billing allegations.
All charges remain unproven, an indictment is not evidence of guilt, and every defendant retains the presumption of innocence unless prosecutors establish each required element through admissible evidence beyond a reasonable doubt in federal court.
Two Nurses and Two Business Vehicles
The indictment describes Presha as a licensed registered nurse residing in Manatee County and identifies him as an owner of Universal Nursing and Wellness, a Florida company that allegedly formed part of his professional and commercial footprint.
Presha also registered WP Enterprises as a Florida fictitious business name, and prosecutors identify a Wells Fargo account associated with that operation as the destination for the largest representative kickback transfer charged in the case.
Evans is described as a licensed registered nurse residing in Hillsborough County and as an owner of Healing His Way, another Florida company with a separate bank account allegedly used to receive his disputed payment.
A Pennsylvania business identified only as Company-I marketed and sold wound-care products to Tesar and Primecare, while operating through a fictitious name that purportedly engaged Presha, Evans, and other participants as sales representatives.
Businesses, consulting agreements, and commercial bank accounts are not inherently suspicious, but prosecutors allege these arrangements provided a formal appearance for compensation whose true purpose was to reward referrals of Medicare beneficiaries with wounds.
That characterization will require proof, because the defense can argue that the nurses performed legitimate sales, education, coordination, or marketing work and received ordinary commercial compensation unrelated to any prohibited decision about federally reimbursed patient care.
The Alleged Patient-Referral Pipeline
According to the federal indictment filed in the Middle District of Florida, Tesar recruited and worked with purported representatives, including Presha and Evans, to identify Medicare beneficiaries whose wounds could generate claims for expensive allograft applications.
Prosecutors allege that Company-I’s sales agreements were shams because the representatives were not principally paid to market products, but were instead engaged to send Medicare beneficiaries to Tesar for wound treatment billed to the program.
The claimed pipeline therefore connected patient access with product selection, clinical treatment, Medicare billing, distributor revenue, percentage calculations, and payments into businesses associated with the two nurses, creating what prosecutors describe as a coordinated financial cycle.
Under the government’s theory, the referrals were valuable because each qualifying beneficiary could produce substantial product invoices, while more expensive allografts and larger treated areas could increase revenue available for distribution among alleged participants.
The legal issue is not whether one professional introduced a patient to another, because referrals routinely support legitimate care, but whether remuneration was knowingly and willfully offered, solicited, paid, or received to influence federally reimbursable referrals.
Contracts and invoices cannot resolve that question by themselves, since jurors may have to examine actual services, payment formulas, communications, patient movement, product utilization, and whether compensation rose alongside business generated from referred beneficiaries.
Presha’s Alleged Role Emerges Through Messages
The indictment’s narrative concerning Presha begins with a June 2024 message in which Tesar allegedly proposed moving among rooms to locate wounds and immediately acknowledged that the approach might be unlawful, according to prosecutors.
That exchange may support the government’s claim that finding wounds was a deliberate patient-acquisition strategy, although defense counsel can challenge its context, completeness, intended meaning, authorship, admissibility, and connection with any particular beneficiary or payment.
In September 2024, Tesar allegedly told Presha that his accumulated invoices totaled $4,069,625 and then paired a twenty-percent calculation with $813,925, creating a numerical connection prosecutors may characterize as referral compensation.
The government will likely argue that a percentage linked to product invoices reveals a financial interest in Medicare-funded utilization, while Presha may contend that sales commissions commonly reflect revenue and require fuller contractual context before suggesting criminal intent.
A January 2025 message allegedly informed Presha that a new product cost $2,000 per square centimeter instead of $1,591, emphasized that his resulting compensation would be substantially higher, and discussed switching patients toward that product.
Prosecutors may present that communication as evidence that product price influenced treatment-related decisions, while the defense could cite clinical, distributor, acquisition-cost, reimbursement, and product-performance context to explain why a change was considered or discussed.
The indictment later says Tesar emailed Company-I in July 2025 with information matching Primecare payments to particular products, patients, and representatives, including Presha, allegedly enabling the distributor to calculate and send contested compensation.
On August 15, 2025, Company-I allegedly deposited approximately $397,570 into the WP Enterprises account, a transaction prosecutors describe as a kickback rewarding Presha for referring Medicare beneficiaries who received allografts billed to the program.
Count Nine charges Presha with knowingly and willfully soliciting and receiving that remuneration in return for referrals, while Count Six separately alleges that he joined the wider agreement to defraud the government and exchange prohibited payments.
The forfeiture section attributes $3,193,172 in alleged proceeds to Presha, a sum substantially larger than the single $397,570 transfer charged in Count Nine and therefore requiring its own proof concerning source, traceability, ownership, and relationship to charged conduct.
Evans’s Alleged Role Follows a Similar Pattern
The indictment says Tesar introduced Evans to an owner of Company-I in January 2025 by emphasizing that Evans already had several prospective patients who could begin treatment quickly, language prosecutors may portray as defining his commercial value.
Later that month, Tesar allegedly explained to Evans that a new allograft cost $2,000 per square centimeter and that a twenty-percent share would therefore exceed the amount generated from a product costing $1,591.
Those figures may help prosecutors argue that Evans understood compensation to be linked with costly product use, but the defense may dispute whether the calculation represented referrals, genuine sales activity, anticipated commissions, or an inaccurate statement by somebody else.
An April 2025 exchange allegedly followed discussion about the amount and timing of anticipated payments, with Tesar warning Evans that she was not supposed to discuss money with the purported representatives or disclose what she knew.
Prosecutors may characterize that warning as evidence of concealment and shared awareness, while Evans can argue that another person’s statement cannot establish his own knowledge, agreement, purpose, or understanding without proof showing how he received and interpreted it.
The July 2025 email to Company-I allegedly identified Evans alongside patient, product, and Primecare payment information, positioning him within the distributor’s transaction-level accounting before funds moved into his associated business account the following month.
On August 15, 2025, Company-I allegedly deposited approximately $10,998 into the Healing His Way account, which prosecutors characterize as payment for Evans referring a Medicare beneficiary to Tesar for reimbursable wound allograft care.
Count Ten charges Evans with knowingly and willfully soliciting and receiving that amount in return for a referral, while the shared conspiracy count alleges his participation in the broader plan involving government impairment and unlawful remuneration.
The forfeiture allegations separately attribute $263,223 in alleged proceeds to Evans, again exceeding the representative payment identified in his substantive count and requiring prosecutors to trace any broader amount before ordering permanent forfeiture.
One Alleged Transfer Creates Charges on Both Sides
The August 2025 deposits illustrate how one financial event can support different charges, because Counts Seven and Eight accuse Tesar of causing prohibited payments while Counts Nine and Ten accuse Presha and Evans of receiving them.
This structure does not automatically establish guilt for either side, because prosecutors must separately establish the required intent and referral purpose for each defendant rather than relying solely on a transfer’s existence, timing, size, or appearance.
A payment can be lawful when it compensates real services under compliant terms, but a contract label cannot protect remuneration knowingly exchanged for Medicare referrals when the actual relationship and surrounding evidence demonstrate an unlawful purpose.
Prosecutors will probably emphasize the alleged invoice percentages, patient-centered introductions, product-price messages, payment discussions, mapping email, and business accounts as mutually reinforcing evidence that the arrangements rewarded access to reimbursable beneficiaries rather than independent sales work.
Defense counsel may counter with executed agreements, work records, training materials, sales contacts, tax documents, distributor policies, witness testimony, and alternative interpretations showing that compensation reflected lawful activity or that the nurses lacked criminal knowledge.
The Shared Conspiracy Count Reaches Further
Count Six alleges that Tesar, Presha, Evans, and other known or unknown participants agreed between approximately May 2024 and November 2025 to defraud the United States and to offer, pay, solicit, and receive health care kickbacks.
The government says the agreement sought to obstruct the lawful administration and oversight functions of federal health agencies, enrich participants through referral payments, generate allograft claims resulting from those payments, conceal compensation, and divert proceeds.
Unlike the individual receipt counts anchored to two specified transfers, the conspiracy count permits prosecutors to present a broader narrative involving messages, contracts, patient sourcing, corporate records, bank activity, product decisions, and alleged conduct by multiple participants.
Conspiracy liability still demands individualized proof that each defendant knowingly joined the unlawful objective, because friendship, employment, nursing credentials, business association, patient coordination, or receipt of money does not independently establish a criminal agreement.
Statements by one alleged participant may become admissible against another only under applicable evidence rules and factual foundations, creating likely disputes over authentication, context, hearsay, timing, membership in any conspiracy, and whether communications advanced its objectives.
The defense may seek separate trials, limiting instructions, evidentiary exclusions, or other safeguards if it believes evidence directed primarily at Tesar could unfairly spill over and influence jurors evaluating Presha or Evans individually.
Tesar’s Five Fraud Counts Remain Legally Distinct
Counts One through Five accuse Tesar alone of executing a health care fraud scheme through representative Medicare claims, while Presha and Evans are not charged as defendants within those five substantive billing counts.
The five listed claims total approximately $3,957,425 billed and $2,823,874 paid, but the indictment does not expressly identify which representative transaction involved unnecessary treatment, nonexistent services, false documentation, kickback-tainted care, or overlapping theories.
Prosecutors allege more broadly that allografts were applied without adequate conservative treatment, placed on infected wounds, continued after patients stopped responding, used where wounds allegedly could not heal, and sometimes billed despite never being applied.
Those accusations may explain why allegedly purchased referrals mattered financially, but they do not automatically prove Presha or Evans knew any particular treatment was unnecessary, any procedure was unperformed, or any record was false.
The government may attempt to prove such knowledge through communications, patient interactions, clinical experience, payment structures, or repeated patterns, while the nurses can argue that treatment, documentation, coding, and billing remained under other people’s control.
Jurors would therefore need to distinguish participation in a referral-payment agreement from responsibility for every medical or billing decision, carefully evaluating the evidence assigned to each count and each defendant rather than treating association as guilt.
Beneficiary Inducements Add Another Alleged Layer
The indictment alleges that Tesar, purported representatives including Presha and Evans, and others encouraged beneficiaries to begin or continue allograft treatment by misrepresenting costs, waiving copayments, supplying free medical items, and providing valuable gifts.
The gifts described by prosecutors include jewelry and a leather recliner, but the charging document does not publicly assign every inducement to a specific defendant, beneficiary, treatment date, or resulting claim within its general narrative.
That limitation matters because responsible reporting should not attribute a particular gift or representation to Presha or Evans unless evidence identifies the actor, while prosecutors remain free to develop greater specificity through discovery and trial testimony.
If proven, beneficiary inducements could support the government’s theory that the patient pipeline depended upon more than clinical recommendations, particularly when older, disabled, or medically vulnerable individuals faced complex treatment choices and substantial federal reimbursement.
The defense may argue that supplies served legitimate medical needs, copayment decisions followed lawful hardship policies, gifts were unrelated to referrals, or individual defendants neither offered nor knew about benefits provided by somebody else.
Why Allograft Economics Matter
Bioengineered skin substitutes can be legitimate treatments for qualifying wounds, but their prices and reimbursement calculations may produce exceptionally large claims when costly products are applied repeatedly or across substantial wound areas measured by square centimeter.
That economic structure gives the product-pricing messages unusual significance, because a twenty-percent calculation tied to a more expensive allograft could increase compensation without requiring a corresponding increase in the number of patients being referred.
Price evidence alone cannot establish illegality, however, because clinicians and suppliers routinely compare products, reimbursement, acquisition costs, coverage rules, availability, performance, and patient suitability when deciding which wound-care materials to purchase or recommend.
The criminal question will be whether prosecutors can connect those discussions to knowingly purchased referrals and fraudulently generated claims, rather than merely showing that participants understood the financial dimensions of a costly medical product.
Independent WWSB reporting on the Tampa Bay-area defendants summarized the accusations against Tesar, Presha, and Evans, including the alleged referrals, unnecessary allografts, approximately $61 million paid by Medicare, and roughly $11,800,000 seized by authorities.
Forfeiture Expands the Financial Exposure
The indictment seeks forfeiture of property allegedly constituting or deriving from gross proceeds traceable to charged offenses, identifying $61,634,756 for Tesar, $3,193,172 for Presha, and $263,223 for Evans as attributed proceeds.
Those figures are allegations, not judgments, and defendants or third parties may dispute whether particular funds came from charged conduct, belonged to someone else, represented legitimate revenue, were accurately valued, or remain legally recoverable.
If prosecutors cannot find directly traceable property, or if it has been transferred, moved outside the court’s jurisdiction, diminished, or commingled beyond practical division, they may request substitute assets under the federal forfeiture framework described in the indictment.
Pretrial seizure and requested forfeiture must not be confused with conviction, because restraint can preserve disputed property during litigation while the ultimate ownership, source, traceability, and government entitlement remain subject to legal challenge.
The difference between each charged August transfer and the larger attributed proceeds will be especially important for Presha and Evans, since the government must support its broader forfeiture calculations with evidence extending beyond the representative deposits.
What Prosecutors Must Prove Against Each Nurse
For the conspiracy charge, prosecutors must establish an unlawful agreement, the defendant’s knowing and voluntary participation, and an overt act advancing the plan, and must prove more than parallel conduct, professional cooperation, or awareness of another person’s activity.
For each kickback-receipt count, the government must prove that the named nurse knowingly and willfully solicited or received remuneration in return for referring a beneficiary for items or services payable under a federal health care program.
Bank records may prove money moved, but purpose and knowledge will likely depend upon surrounding evidence such as messages, contracts, percentage formulas, patient histories, product assignments, testimony from Company-I personnel, and explanations offered by the defendants.
Presha may contest whether the $397,570 represented referrals, challenge how prosecutors calculated his alleged proceeds, and dispute the meaning of Tesar’s messages, while emphasizing any documented services performed under his business arrangements.
Evans may similarly challenge whether the $10,998 payment rewarded a beneficiary referral, whether he understood the product-price discussion as a commission calculation, and whether Tesar’s secrecy warning reflected his knowledge or only her own concerns.
Both nurses may argue that Tesar or Company-I controlled payment decisions, that clinical and billing functions occurred elsewhere, and that prosecutors have merged ordinary commercial activity with disputed patient care to infer intent retrospectively.
The government, conversely, may argue that the same pattern appears repeatedly across different communications, participants, products, patients, and transfers, allowing jurors to infer a coordinated purpose from circumstantial evidence even without a written kickback agreement.
Professional Status Raises Separate Consequences
Because Presha and Evans were identified as licensed registered nurses, the indictment may trigger employment reviews, credentialing questions, payer scrutiny, and professional licensing processes separate from the criminal case, each governed by different procedures and evidentiary standards.
An accusation does not establish professional misconduct, and regulators or employers should avoid treating an unresolved indictment as a conviction while still applying lawful patient-safety, reporting, credentialing, and due-process requirements appropriate to their responsibilities.
Public allegations can also spread rapidly through search engines, compliance databases, banking reviews, vendor assessments, and professional networks, creating reputational consequences before witnesses testify or a court determines whether the government’s theory is provable.
The Amicus International Consulting news and analysis hub examines health care fraud, asset seizure, cross-border enforcement, identity, and extradition developments while maintaining the necessary distinction among allegations, guilty pleas, convictions, settlements, dismissals, and unresolved proceedings.
Professionals confronting sustained public scrutiny may also review Amicus International Consulting’s crisis communications and reputation-management guidance, which emphasizes verified facts, coordinated stakeholder communication, careful media preparation, and respect for litigation, investigators, patients, and witnesses.
Responsible communications must never conceal evidence, coach false accounts, pressure beneficiaries, intimidate witnesses, obstruct investigators, or misrepresent court developments, but accurate procedural explanations can prevent allegations from being repeatedly described as established facts.
A Major Case Within the 2026 Federal Takedown
The Tesar prosecution formed part of the Justice Department’s 2026 National Health Care Fraud Takedown, which announced charges against 455 defendants across fifty-six federal districts involving more than $6,500,000,000 in alleged false claims.
Federal officials said the coordinated initiative included ninety doctors and other licensed medical professionals, reached forty-five states and territories, and produced seizures exceeding $182 million in cash, residences, vehicles, jewelry, and other property.
The presence of two registered nurses as alleged referral sources shows how federal investigators are examining the entire reimbursement chain, including patient access, clinical authority, product distribution, claims submission, compensation structures, and ultimate movement of proceeds.
Claims analytics can expose extreme utilization or payment patterns, but a successful prosecution still requires patient-level, transaction-level, and defendant-specific evidence connecting suspicious numbers with knowingly unlawful conduct rather than negligence, confusion, or legitimate high-volume care.
What Happens Next
The case may proceed through discovery, motions, expert review, challenges to electronic evidence, forfeiture litigation, plea negotiations, or trial, with prosecutors and defense lawyers testing the meaning and reliability of every alleged message and transfer.
Financial investigators may reconstruct the flow of funds among Primecare, Company-I, WP Enterprises, Healing His Way, and other accounts, while witnesses may explain agreements, services, patient introductions, product choices, invoice calculations, and payment authorization.
Defense lawyers will likely seek to separate each nurse from Tesar’s treatment and billing allegations, while prosecutors will attempt to show that patient sourcing and payment arrangements were essential components of the broader Medicare operation.
Presha and Evans are entitled to separate consideration even when evidence overlaps, because a jury must determine whether the government has proved each person’s knowledge and conduct on each charged count without transferring guilt by association.
Until a guilty plea, verdict, dismissal, or other judicial resolution determines the outcome, the case remains an unproven federal allegation that two Tampa Bay-area nurses converted patient referrals into payments within an extraordinarily lucrative wound-care billing network.
