N.Y. Gen. Mun. Law § 133
Members of the board of managers shall be admitted to every part of the hospital and premises, and shall have access to all books, papers, accounts and records pertaining to the hospital and shall be furnished with copies, abstracts and reports whenever required by them. All hospitals established or maintained under the provisions of sections one hundred and twenty-six, one hundred and twenty-seven, one hundred and twenty-eight, one hundred and twenty-nine, one hundred and thirty, one hundred and thirty-one, one hundred and thirty-two, one hundred and thirty-three and one hundred and thirty-four of this act shall be subject to inspection by any duly authorized representative of the state board of charities, of the state department of health, of the state charities aid association, and of the governing board of the county, town, city or village by which the hospital is maintained; and the resident officer in charge shall admit such representatives into every part of the hospital and premises, and give them access on demand to all records, reports, books, papers and accounts pertaining to the hospital.
N.Y. Gen. Mun. Law § 133