Polk County Health Services disclosed on Friday that it accidentally disseminated personal and protected health information of people who have received services at the county’s Crisis Observation Center over the past four years. The breach occurred between June 2014 and Jan. 11, 2018, and contained information of 1,071 people who received services at the center, which opened in June 2014 at Central Iowa Shelter & Services at 1420 Mulberry St. and is now located at Broadlawns Medical Center. "During this period, Polk County Health Services Inc. accidentally and unknowingly disseminated personal and protected health information of individuals who have received services at the Crisis Observation Center in Des Moines," the organization said in a news release. Officials became aware of the potential breach on Feb. 14. PCHS said it has investigated the incident and determined the information disclosed and recipients of the information, and has taken action to mitigate further dissemination of the information. The information unknowingly disclosed includes full name, home address, Social Security number, Medicaid identification number, date of admission to the Crisis Observation Center and discharge location. There is no evidence the information was improperly used. Polk County Health Services, a private, nonprofit organization, functions as the regional administrator and the governing board for mental health and disability services on behalf of Polk County, and serves approximately 9,000 Central Iowans with mental illness, intellectual or other developmental disabilities. The organization is offering to provide free credit monitoring for 12 months to those affected, and recommends those who have used the Crisis Observation Center to register a fraud alert with the three credit bureaus. The affected individuals have been sent letters notifying them of the data breach, a health services official said today.