If, upon review, investigation or inspection pursuant to section 19a-498, the Commissioner of Public Health determines that a nursing home facility has violated any provision of section 17b-406, 19a-521 to 19a-529, inclusive, 19a-531 to 19a-551, inclusive, or 19a-553 to 19a-555, inclusive, section 19a-491a, 19a-491b, 19a-493a or 19a-528a or any regulation in the Public Health Code or regulation relating to licensure or the Fire Safety Code relating to the operation or maintenance of a nursing home facility, which violation has been classified in accordance with section 19a-527, he shall immediately issue or cause to be issued a citation to the licensee of such nursing home facility. Governmental immunity shall not be a defense to any citation issued or civil penalty imposed pursuant to sections 19a-524 to 19a-528, inclusive. Each such citation shall be in writing, shall provide notice of the nature and scope of the alleged violation or violations and shall be sent by certified mail to the licensee at the address of the nursing home facility in issue. A copy of such citation shall also be sent to the licensed administrator at the address of the facility.