The Iowa Board of Nursing has disciplined several licensed nurses for clinical errors, patient-privacy breaches, theft of medications, and other misconduct.
Diane Tegtmeyer
Tegtmeyer, 58, has been sanctioned at least four times. In May 2025, she was charged with failing to assess or evaluate a patient and with acts that could harm a patient’s welfare. The board alleged she documented administering medication to residents despite video showing she had not entered their rooms. She agreed to 36 months’ probation and practice monitoring.
Past cases included:
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In 2005, then known as Diane Teske, she falsely charted giving medication but instead discarded it. The board ordered 30 hours of ethics training.
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In 2007, she was fired for taking a co-worker’s credit card to shop at Walmart, pleaded guilty to credit card forgery, was fined $50, and ordered to complete more ethics training.
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In 2015, she failed to report a criminal conviction for tampering with records and falsified a urine sample record. She was fined $500 and ordered to complete additional ethics training.
Nancy Buttry
Buttry, 53, agreed to surrender her nursing license. She had been charged with excessive drug use that could impair her practice. Although enrolled in the Iowa Professional Health Committee program for substance abuse issues, the board said she failed to meet its requirements or stay in contact with the program.
Lauren Haldin
Haldin was charged in April with misappropriating medications and failing to safeguard or properly administer drugs while working at a Des Moines-area behavioral health hospital in 2024. The hospital fired her after concluding she had stolen controlled substances. Surveillance and records showed she repeatedly pulled drugs without documenting their administration. She agreed to two years’ probation, a substance abuse evaluation, chemical screening, and 16 hours of training on medication safety and documentation.
Cynthia Bustos
Bustos was charged in April 2025 with failing to assess patients and misappropriating medications while working in Allison. Records showed she claimed to administer hydrocodone on seven occasions in September 2024, but the narcotics count sheet could not be found. She agreed to one year of probation and 30 hours of ethics training. In 2022, Bustos was charged for failing to visit home-care clients on dates she claimed she had.
Sherley Beaufils
Beaufils, licensed in Iowa and 45 other states, agreed to surrender her license after being convicted of five counts of health care fraud, one count of conspiracy, five counts of aggravated identity theft, and five counts of making false statements related to health care. She was sentenced to 87 months in prison and ordered to pay $1.6 million in restitution.
Tonya Zimmerman
Zimmerman was charged with abandoning her nursing assignment without ensuring patient safety and for fraudulent charting while at Angels Care Home Health between October 2023 and April 2024. She failed to see seven scheduled patients—two needing wound care—and documented visits while her computer tablet was at home. She agreed to complete 30 hours of ethics training.
Debra Wolterman
Wolterman was charged with acts potentially harming patients, violating their privacy, and unprofessional behavior. She had repeatedly accessed patients’ records, including co-workers’ files, without consent or work purpose. She received a warning and must complete 30 hours of training on patient privacy.
Pamela Rosendahl
Rosendahl was charged with failing to properly document patient assessments and engaging in unethical conduct by forming an inappropriate relationship with an inmate while working at a county jail for Advanced Correctional Health between October 2023 and April 2024. Records showed she gave candy to an inmate in violation of jail policy and received personal calls from two inmates. She failed to document treatment for one inmate on about 30 occasions. She received a warning and must complete 25 hours of training on documentation, ethics, and boundaries.
Patricia Jean Stanley
Stanley, 64, of Des Moines, surrendered her license after being criminally charged with financially exploiting an older individual. She pleaded guilty in February 2025, admitting to taking more than $5,900 from an 88-year-old relative’s retirement account. She was sentenced to up to five years in prison. In 2023, while working at Broadlawns Medical Center, she was charged with—and later convicted of—theft related to the same relative’s finances.
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