Physicians should utilize the New York State Department of Health website that has up-to-date information on COVID-19 and includes information on known cases of COVID-19, cleaning and disinfection guidance, help for childcare providers and schools, and guidelines for individuals who have recently traveled internationally.
https://health.ny.gov/diseases/communicable/coronavirus/providers.htm

Reporting
COVID-19 is a reportable disease.  If novel Coronavirus is suspected, immediately notify the local health department (LHD) where the patient resides.

Health care providers should review: CDC's Interim Guidance for Healthcare Professionals Evaluating Persons Under Investigation (PUI)

Free Communication Resources 
CDC offers free resources including video, fact sheets, and posters. 
https://www.cdc.gov/coronavirus/2019-ncov/communication/index.html

Additional Resources
CDC Website for Healthcare Professionals 
https://www.cdc.gov/coronavirus/2019-nCoV/hcp/index.html