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OKLAHOMA COUNTY • CJ-2026-1547

Ellis Clinic, P.C. v. Amanda Knowles

Filed: Mar 2, 2026
Type: CJ

What's This Case About?

Let’s cut right to the chase: a physician’s assistant didn’t just quit her job—she allegedly raided it. Like a medical version of a corporate heist, Amanda Knowles is accused of printing out the entire patient database of Ellis Clinic, launching her own competing practice, sending flyers to her former employer’s patients with her smiling face and a “Hey, follow me!” vibe, and then spreading rumors that the clinic’s doctor had lost his medical license. Yes, really. This isn’t just a breakup. This is a full-blown professional betrayal with paperwork, subpoenas, and a $77,500 grudge.

Dr. John W. Ellis runs Ellis Clinic, P.C., a medical shop in Oklahoma City that specializes in treating people hurt on the job, in car accidents, or navigating the long, soul-crushing slog of social security disability claims. It’s the kind of place where patients don’t just walk in—they’re often referred, they stay for a while, and they build trust with the staff. One of those trusted staff members was Amanda Knowles, a physician’s assistant who started working there back in January 2015. For nearly a decade, she was part of the team, seeing patients, building relationships, and getting paid—along with a little bonus: her employer agreed to waive a $10,000 education fee if she played by the rules after she left. Those rules? No poaching patients. No spilling trade secrets. And definitely no setting up shop across town using the clinic’s playbook. She signed a Confidentiality & Education Agreement spelling all of this out. It wasn’t just a handshake deal. It was a contract. With dollar signs attached.

But then, in March 2024, Knowles handed in her resignation. Nothing unusual there—people move on. Except, according to the filing, two months before she quit, while still drawing a paycheck and wearing her clinic badge, she allegedly printed out the entire patient database. Every name. Every file. Every detail. And then, shortly after leaving, she launched Caliber Medical, PLLC—her very own medical practice, doing exactly what Ellis Clinic does. Suspicious? Oh, it gets worse. Within days, Ellis Clinic patients started getting flyers in the mail. Not a subtle LinkedIn post. Not a quiet announcement. A full-on marketing blitz with Knowles’ face on it: “Formerly of Ellis Clinic, Amanda Knowles, PA invites you to become a patient at Caliber Medical.” It’s the medical equivalent of a pop star leaving a band and immediately going on tour with all the old hits.

But wait—there’s more. According to the petition, Knowles didn’t just invite patients over. She allegedly undermined the clinic’s credibility by telling patients that Dr. Ellis had lost his medical license. That’s not just competitive. That’s slanderous. That’s the kind of thing that makes patients panic, cancel appointments, and question whether they’ve been getting care from a legit doctor. Except—Dr. Ellis still has his license. The petition says he transferred certain patients to board-certified pain management specialists in the fall of 2023 to better serve them, not because he was in trouble. But Knowles allegedly twisted that act of professional responsibility into a rumor of professional failure. And if you think that’s a stretch, ask yourself: why would patients suddenly start getting flyers and rumors at the same time?

So now Ellis Clinic is suing—not just for money, but to stop the bleeding. They want a temporary and permanent injunction to shut down Knowles’ alleged poaching operation. They want her to stop using their patient lists, their business strategies, and their reputation. They want the court to say: No, you don’t get to take our people, our playbook, and then trash our name on the way out. The legal claims are a full arsenal: breach of fiduciary duty (you had a duty to us, and you betrayed it), unfair competition (you’re playing dirty), tortious interference (you messed with our business relationships), violation of Oklahoma’s Deceptive Trade Practices Act (you lied to patients), and yes—slander, because spreading false rumors about a doctor’s license isn’t just shady, it’s actionable. And on top of all that, they’re saying Knowles broke her contract by violating the confidentiality agreement, so they want their $10,000 education fee back. Like a breakup penalty, but with receipts.

The total damages sought? $77,500 in actual damages and another $77,500 in punitive damages—so up to $155,000 if the court really wants to send a message. Is $77,500 a lot for this? Well, let’s do the math. If Knowles siphoned off even a fraction of Ellis Clinic’s patient base—patients who might have been seeing the clinic for years, generating steady revenue—that number isn’t outrageous. Medical practices run on trust and continuity. Losing patients isn’t just losing appointments; it’s losing future income, referrals, and reputation. And once a rumor like “the doctor lost his license” starts spreading, it doesn’t just vanish. It lingers. So while $77,500 might sound like a lot for a PA quitting a job, in the world of medical practices and patient loyalty, it might not even cover the cleanup.

Here’s the thing we can’t stop thinking about: the audacity. Not just leaving. Not just competing. But doing it with a flyer. With your face on it. It’s not stealth. It’s a victory lap. And then topping it off with a lie that strikes at the heart of a medical practice—its legitimacy. It’s like if a chef quit a restaurant, opened a rival spot across the street, handed out coupons to regulars, and told everyone the original place had a rat infestation. The sheer nerve is almost impressive. Are we rooting for Ellis Clinic? Sure. They’ve got a solid case, and Knowles’ actions, if proven, are a textbook example of how not to leave a job. But part of us also wonders: what made her do it? Was she underpaid? Overworked? Did she feel undervalued? The filing doesn’t say. It only shows the aftermath: a clinic scrambling to protect its patients, its reputation, and its bottom line. And a former employee who may have thought she was building her own empire—only to find herself in court, accused of stealing the blueprint.

One thing’s for sure: in the world of medical ethics and non-compete clauses, you don’t get to take the patients and burn the bridge. You just don’t. And if the court agrees, Amanda Knowles might find out the hard way that in Oklahoma, you can leave a clinic—but you can’t take its soul with you.

Case Overview

$77,500 Demand Petition
Jurisdiction
District Court of Oklahoma County, Oklahoma
Relief Sought
$77,500 Monetary
$77,500 Punitive
Injunctive Relief
Plaintiffs
  • Ellis Clinic, P.C. business
    Rep: Adam J. Singer, Grady R. Conrad, Stacey R. Steiner of DERRYBERRY & NAIFEH, LLP
Defendants
Claims
# Cause of Action Description
1 Temporary Injunction and Permanent Injunction alleges Defendants have used confidential trade secrets and engaged in deceptive trade practices
2 Breach of Fiduciary Duty alleges Knowles breached fiduciary duty by disclosing confidential information and competing with Plaintiff
3 Violation of the Oklahoma Deceptive Trade Practices Act alleges Defendants' actions constitute a violation of the Oklahoma Deceptive Trade Practices Act
4 Unfair Competition alleges Defendants have wrongfully obtained and misappropriated confidential information and used it for their own account
5 Tortious Interference with Existing Business and Prospective Economic Advantage alleges Defendants have interfered with Plaintiff's business relationships and caused damage to Plaintiff's business
6 Breach of Contract alleges Knowles failed to perform under the Confidentiality & Education Agreement
7 Slander alleges Knowles published false statements regarding Dr. Ellis' medical license

Petition Text

1,994 words
IN THE DISTRICT COURT OF OKLAHOMA COUNTY STATE OF OKLAHOMA ELLIS CLINIC, P.C., an Oklahoma Professional Corporation, Plaintiff, vs. AMANDA KNOWLES, an individual, and CALIBER MEDICAL, PLLC, an Oklahoma Professional Limited Liability Company, Defendant. Case No. CJ-2026 - 1547 PETITION COMES NOW the Plaintiff, Ellis Clinic, P.C., an Oklahoma Professional Corporation, by and through its attorneys of record, Adam J. Singer, Grady R. Conrad and Stacey R. Steiner of the firm DERRYBERRY & NAIFEH, LLP, and for its causes of action against Defendants, Amanda Knowles and Caliber Medical, PLC, an Oklahoma Professional Limited Liability Company, alleges and states as follows: I. PARTIES 1. Plaintiff, Ellis Clinic, P.C., is an Oklahoma Professional Company in good standing, doing business in the City of Oklahoma City, Oklahoma County, State of Oklahoma. 2. Defendant, Amanda Knowles (hereinafter, "Knowles"), is an individual, and at all relevant times, domiciled in and residing in the State of Oklahoma. 3. Defendant, Caliber Medical, PLLC (hereinafter “Caliber”), is an Oklahoma Professional Limited Liability Company, doing business in the City of Oklahoma City, County of Oklahoma, State of Oklahoma. II. JURISDICTION AND VENUE 4. The principal subject of the present action concerns business operations located in Oklahoma City, Oklahoma County, State of Oklahoma. Therefore, this Court has subject matter jurisdiction of the present action. 5. This Court has personal jurisdiction of the parties by virtue of their respective minimum contacts with Oklahoma County, State of Oklahoma. 6. Venue is proper in Oklahoma County, State of Oklahoma. III. FACTUAL ALLEGATIONS 7. That on or about January 5, 2015, Knowles began working for Plaintiff as a Physician’s Assistant in Plaintiff’s medical clinic located in Oklahoma City, Oklahoma. 8. That Plaintiff’s clinic offers medical care for patients injured in an accident, patients injured on the job, and patients who qualify for social security disability, to name a few. 9. That on or about January 5, 2015, Plaintiff entered into a Confidentiality & Education Agreement (hereinafter, the “Agreement”) with Knowles regarding the confidentiality of Plaintiff’s medical practices, called, “Ellis Clinic’s Legal Medicine Expertise” (hereinafter, “Legal Medicine Expertise”). The Agreement states, among other things, that Knowles waives the $10,000.00 education fee paid to Plaintiff if Knowles is confidential, does not teach or inform other persons or entities, other than Ellis Clinic associates, about the Legal Medicine Expertise for one year after Knowles leaves her employment with Plaintiff. In addition, Knowles also agreed to not see Federal or Veteran Disability patients outside of Ellis Clinic for a period of one (1) year after leaving her employment with Plaintiff. 10. That on or about March 22, 2024, Knowles handed her written resignation of her employment with Plaintiff. 11. That approximately two months before handing in her resignation, while still employed with Plaintiff, Knowles printed out the entire patient data base for all of Plaintiff’s patients. 12. Upon information and belief, Knowles formed Caliber Medical for the purposes of unlawfully using information she obtained during her employment with Plaintiff to unfairly compete with Plaintiff and to divert Plaintiff’s established patients away from Plaintiff. 13. That on or about March 27, 2024, Plaintiff’s patients began receiving a flyer from Caliber Medical inviting the patients to become patients at Caliber Medical. Knowles’ picture and name are on the flier stating that “Formerly of Ellis Clinic, Amanda Knowles, PA invites you to become a patient at Caliber Medical.” 14. That in the fall of 2023, Plaintiff transferred all patients who are in need of scheduled drugs to physicians that were board certified in pain management, in order to better serve its patients. 15. Since the fall of 2023, Knowles has been unlawfully and untruthfully telling Plaintiff’s patients that the reason Plaintiff transferred these patients to physicians who were board certified in pain is that Dr. Ellis lost his medical license. 16. That Plaintiff, upon information and belief, believes Knowles has started a new medical practice, namely, Caliber Medical, PLLC, in the same or similar line of work as Ellis Clinic, P.C, and is attempting to use the information she obtained from Plaintiff illegally, for the benefit of Knowles’ new medical practice. IV. FIRST CAUSE OF ACTION (Request for Temporary Injunction and Permanent Injunction) 17. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through sixteen above as if fully set forth herein. 18. That Plaintiff is entitled to a temporary injunction and permanent injunction pursuant to Title 12 O.S. §§ 1382, 1384.1, the Oklahoma Deceptive Trade Practices Act, 78 O.S. § 51, et seq., the Oklahoma Uniform Trade Secrets Act, 78 O.S. § 85, et seq., and common law. 19. That Plaintiff has no adequate remedy at law or otherwise, because Plaintiff is in danger of permanently losing patients and business as a result of Defendants’ actions. 20. That Knowles is a former employee of Plaintiff. 21. That Plaintiff, upon information and belief, has lost confidential trade secrets, business opportunities, marketing techniques and branding, and other information developed by Plaintiff to which Knowles was provided access during the course of her employment. Upon information and belief, Defendants have used the information and disparaged Plaintiff’s business to solicit Plaintiff’s patients for their own purpose and profit. Plaintiff has lost and will continue to lose patients as a result of Defendants’ actions. 22. That Plaintiff has no adequate remedy at law or otherwise because of the particular nature of the damage done and the likelihood of repetitive injury in the future. 23. That Plaintiff will suffer irreparable harm, damage, and injury unless Defendants acts and conduct set forth herein are enjoined. 24. That Defendants are engaged in deceptive trade practices in violation of Title 78 O.S. § 51, et seq., and should therefore be enjoined from continuing to do so under Title 78 O.S. § 54. V. SECOND CAUSE OF ACTION (Breach of Fiduciary Duty) (Against Knowles) 25. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through twenty-four above as if fully set forth herein. 26. That by virtue of her employment with Plaintiff, Knowles owed Plaintiff a fiduciary duty of loyalty. This fiduciary duty included a duty to keep confidential the private and proprietary information of Plaintiff, including but not limited to patient lists, patient demographics, and pricing structures. 27. That by virtue of her employment with Plaintiff, Knowles owed Plaintiff a fiduciary duty of loyalty to not disclose or compete with Plaintiff’s business or to solicit Plaintiff’s patients in any manner. 28. That Knowles owes Plaintiff, a fiduciary duty of good faith. Knowles breached this duty of good faith by intentionally acting for a purpose other than the benefit of the Plaintiff, by soliciting patients, sending out flyers to patients’ personal addresses, while collecting payment for herself and not for Plaintiff. VI. THIRD CAUSE OF ACTION (Violation of the Oklahoma Deceptive Trade Practices Act) 29. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through twenty-eight above as if fully set forth herein. 30 That the actions, as fully set forth above, constitute a violation of the Oklahoma Deceptive Trade Practices Act ("DTPA"), codified at 78 O.S. § 51, et seq. 31. That pursuant to the DTPA, any person damaged or likely to be damaged by deceptive trade practices of another may maintain an action of equitable jurisdiction to prevent, restrain, or enjoin such deceptive trade practices. Proof of actual monetary damages, loss of profits, or intent is not required, but if in such action damages are alleged and proved, the Plaintiff, in addition to such injunctive relief, is entitled to recover from the Defendants the actual damages sustained by the Plaintiff as a consequence of such actions. 32. That Plaintiff is entitled to injunctive relief against Defendants, as set forth above. Moreover, Plaintiff has been damaged by virtue of the actions of Defendants’ deceptive trade practices and is entitled to damages and reasonable attorney’s fees and costs. VII. FOURTH CAUSE OF ACTION (Unfair Competition) 33. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through thirty-two above as if fully set forth herein. 34. That Defendants, by virtue of Knowles’ employment with Plaintiff, upon information and belief, wrongfully obtained and misappropriated confidential and proprietary information of Plaintiff, which includes patient lists, patient files, company work product, and other information constituting trade secrets, which Defendants have used or are now using for their own account, purpose, and profit. 35. That upon information and belief, Defendants are surreptitiously engaging in anti-competitive conduct and surreptitiously using confidential information and goodwill of Plaintiff, for the purpose of acquiring Plaintiff’s patients and established goodwill. 36. That Defendants’ conduct constitutes unfair competition. 37. That Defendants have been unjustly enriched and continues to reap the benefits of Plaintiff’s goodwill, established patients, confidence, and trade secrets. As a result of Defendants’ conduct, Plaintiff suffered actual damages. 38. That Plaintiff is entitled to recover actual damages in excess of $75,000.00 and punitive damages in excess of $75,000.00. VIII. FIFTH CAUSE OF ACTION (Tortious Interference with Existing Business and Prospective Economic Advantage) 39. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through thirty-eight above as if fully set forth herein. 40. That Defendants, by engaging in anti-competitive conduct, have interfered with the present and prospective patients and business relationships of Plaintiff, without justification, privilege, or excuse, and constitutes intentional interference with its existing business relations. 41. That Defendants’ conduct was intentional, malicious, and without just cause or excuse, and, as a proximate result of her conduct, Plaintiff is entitled to recover actual damages in an amount in excess of $75,000.00 and punitive damages in excess of $75,000.00. IX. SIXTH CAUSE OF ACTION (Breach of Contract) (Against Knowles) 42. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through thirty-nine above as if fully set forth herein. 43 That Plaintiff and Knowles had a valid and enforceable contract signed on January 5, 2015. 44. That Knowles failed to perform under said Contract as required, by not following the terms and conditions set forth in the “Confidentiality & Education Agreement.” 45. The Plaintiff was harmed as a direct result of Knowles’ actions. 46. That Plaintiff is entitled to recover the $10,000.00 education fee pursuant to the terms of the Agreement. X. SEVENTH CAUSE OF ACTION (Slander) (Against Knowles) 47. That Plaintiff incorporates by reference each and every material allegation contained in numerical paragraphs one through forty-six above as if fully set forth herein. 48. That Knowles has published to Plaintiff’s patients false statements regarding Dr. Ellis’ medical license. 49. That Knowles intended these false statements to injure Dr. Ellis and Plaintiff’s business by falsely imputing Dr. Ellis with losing his medical license, for her own benefit and gain. 50. The Plaintiff was harmed as a direct result of Knowles actions. 51. That Knowles’ conduct was intentional, malicious, and without just case or excuse, and, as a proximate result of her conduct, Plaintiff is entitled to recover actual damages in an amount in excess of $10,000.00 and punitive damages in excess of $10,000.00. WHEREFORE, premises considered, Plaintiff, Ellis Clinic, P.C., an Oklahoma Professional Corporation, prays for judgment against Defendants, Amanda Knowles, and Caliber Medical, PLLC, for each of Plaintiff’s causes of action against Defendants as more fully defined above, in an amount in excess of $75,000.00, for this Court to enter a Temporary Restraining Order against Defendants, and for costs of this action to include attorney’s fees and costs, and for such other and further relief as this Court deems just and proper. Respectfully submitted, [signature] Adam J. Singer, OBA, No. 33272 Grady R. Conrad, OBA No. 32164 Stacey R. Steiner, OBA No. 19139 DERRYBERRY & NAIFEH, LLP 4800 N. Lincoln Blvd Oklahoma City, Oklahoma 73105 Telephone: 405-528-6569 Facsimile: 405-528-6462 Email: [email protected] [email protected] [email protected] ATTORNEYS FOR PLAINTIFFS VERIFICATION STATE OF OKLAHOMA ) COUNTY OF OKLAHOMA ) SS: I, John W. Ellis, M.D., of lawful age, being first duly sworn on oath, deposes and states: That he is an individual and authorized agent of Ellis Clinic, P.C., and he has read the within and foregoing Petition and the statements therein contained are true and correct as he verily believes under penalty of perjury. JOHN W. ELLIS, M.D. SUBSCRIBED AND SWORN TO before me this 27 day of February, 2026. NOTARY PUBLIC My Commission No. 17004721
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