NewsABC Action News (WFTS) — NewsAugust 12, 2026Hillsborough
Lawsuit accuses Arizona-licensed doctor of using own sperm for patient insemination in Wisconsin
A lawsuit filed in Milwaukee County Circuit Court alleges that Dr. Frederick Dettmann used his own sperm to inseminate a patient without her consent in the early 1980s. The doctor, who currently holds an active medical license in Arizona, denies the allegations through his attorney.
Read the full story at ABC Action News (WFTS) — NewsWhy It Matters
The case highlights legal and ethical concerns regarding fertility practices and the oversight of medical professionals who maintain licenses across state lines.
Key Facts
- A lawsuit was filed in Milwaukee County Circuit Court alleging Dr. Frederick Dettmann used his own sperm to inseminate a patient in the early 1980s without her knowledge.
- The allegations were brought by Mary Ellen Lukezich and her son, Joseph Laedtke.
- Joseph Laedtke discovered the situation after using DNA testing on Ancestry.com and finding multiple half-siblings.
- Dr. Dettmann practiced as an OB-GYN in the Milwaukee area for decades.
- Dr. Dettmann has held an Arizona medical license since 1997.
- The Arizona medical license for Dr. Dettmann is set to expire next year.
- Dr. Dettmann does not have a practice address on file with the Arizona Medical Board.
- Dr. Dettmann's attorney stated that the doctor retired in the 1990s and denies the allegations.
Who's Mentioned
personJoseph Laedtke“Son of Mary Ellen Lukezich who discovered the alleged deception via DNA testing.”organizationAncestry.com“Platform used by Joseph Laedtke to discover half-siblings.”personFrederick Dettmann“Doctor accused of using his own sperm to inseminate patients.”personMary Ellen Lukezich“Plaintiff who alleges she was inseminated without her knowledge.”organizationArizona Medical Board“State board where Dettmann holds a medical license.”locationMilwaukee County Circuit Court“Venue where the lawsuit was filed.”