An Indiana family has filed a lawsuit against a now-retired obstetrician-gynecologist, claiming DNA evidence revealed he fathered a child by using his own sperm during a fertility procedure in the 1970s instead of the donor sperm the family had selected and agreed upon.
The lawsuit, filed in Indiana state court, names Dr. Robert Geraghty, a former OB-GYN who practiced in the Indianapolis area. The family alleges Geraghty secretly substituted his own sperm for the chosen donor's during an artificial insemination procedure performed on the plaintiff's mother decades ago, NBC News reported.
The deception allegedly went undetected for roughly half a century, until a consumer DNA test cracked the secret wide open.
The plaintiff, now an adult, took an at-home DNA test and received results that did not match the donor profile the family had expected. Instead, the genetic trail led back to Geraghty himself. The family says the discovery shattered their understanding of their own biological history and the trust they had placed in their physician.
The lawsuit alleges that Geraghty, who was entrusted with one of the most intimate medical procedures a family can undergo, violated that trust by substituting his own genetic material without consent. The family had specifically chosen a donor and believed the insemination was carried out with that donor's sperm.
Geraghty has not publicly commented on the allegations. No criminal charges have been announced in connection with the case.
The Indiana case fits a disturbing pattern that has emerged across the United States over the past decade. As consumer DNA testing has become cheap and widespread, dozens of families have discovered that fertility doctors secretly used their own sperm during insemination procedures, sometimes fathering scores of children without the knowledge or consent of their patients.
Several similar cases have led to lawsuits, legislative action, and in some instances criminal charges in other states. Indiana itself passed a fertility fraud law in 2019, making it illegal for a fertility doctor to use unauthorized reproductive material. That statute was prompted in part by the case of Dr. Donald Cline, another Indiana fertility doctor who admitted to using his own sperm to father dozens of children over the course of his career.
The Cline case drew national attention and became the subject of a Netflix documentary. Cline was convicted of obstruction of justice but faced no sexual assault or fraud charges at the time, partly because Indiana lacked a specific statute covering fertility fraud when his conduct occurred.
One of the central legal hurdles in cases like this involves the statute of limitations. The alleged insemination took place in the 1970s, but the family says it had no way of knowing about the deception until the DNA results came back. Plaintiffs in similar suits across the country have argued that the discovery rule should apply, meaning the clock on filing a claim should not start running until the fraud is discovered or reasonably could have been discovered.
Courts have reached different conclusions on this question depending on the jurisdiction and the specific claims involved. Some families have succeeded in moving forward with civil suits under fraud, battery, and medical malpractice theories. Others have seen their claims dismissed on timeliness grounds.
The family's complaint reportedly includes claims of fraud, lack of informed consent, and medical battery. Each of those theories carries distinct legal elements and potential remedies under Indiana law.
The family is seeking compensatory damages for the emotional and psychological harm they say they have suffered since learning the truth. The complaint describes lasting distress caused by the revelation that the plaintiff's biological father is not the anonymous donor the family chose but the very doctor who performed the procedure.
Plaintiffs in similar fertility fraud cases have described a unique form of harm: the violation is not just medical malpractice in the traditional sense but an intimate betrayal that reshapes a person's identity and family relationships. Courts and juries in other states have awarded significant damages in comparable suits.
Investigators and the court will need to determine whether additional patients may have been affected by similar conduct. Authorities have not publicly confirmed whether any broader investigation is underway.
Indiana's 2019 fertility fraud law made it a Level 6 felony for a fertility doctor to knowingly or intentionally use human reproductive material from a donor not consented to by the patient. The statute was a direct response to the wave of cases uncovered through DNA testing.
Whether that law can be applied retroactively to conduct alleged to have occurred in the 1970s remains an open legal question. Constitutional protections against ex post facto prosecution would almost certainly bar criminal charges under a statute enacted decades after the alleged conduct. The family's civil claims, however, may proceed under different legal standards.
The case also raises questions about medical licensing oversight. Geraghty is described as retired, and it is not clear from public records whether any licensing board action was ever taken against him. Authorities have not said whether any regulatory review is planned.
Consumer DNA kits from companies like 23andMe and AncestryDNA have become a powerful, if accidental, tool for uncovering fertility fraud. Families who submit samples expecting to learn about their ethnic heritage or find distant cousins have instead discovered that their biological fathers are not who they believed.
The legal system has struggled to keep pace. Many of the fertility fraud cases involve conduct that predates modern statutes, and the deeply personal nature of the harm does not always fit neatly into existing tort categories. Legislatures in more than a dozen states have passed or considered fertility fraud laws in recent years, but coverage remains uneven.
For the families involved, the legal process is only part of the reckoning. The psychological toll of learning that a trusted physician secretly made himself a biological parent can ripple through generations, affecting marriages, sibling relationships, and a person's basic sense of self.
Geraghty has not responded publicly to the lawsuit, and no attorney has been identified as representing him in the matter. The case remains in its early stages, and no trial date has been set.
The family's attorneys have not indicated whether they are aware of other potential plaintiffs, though fertility fraud cases in other states have frequently expanded as publicity prompts additional DNA testing and new matches surface.
When a doctor exploits the most private trust a family can extend, the law owes that family more than a shrug and a statute of limitations defense. Indiana's courts now have a chance to show whether the system can deliver accountability, even when the truth arrives half a century late.
