Medical Group Hudson Valley NewYork-Presbyterian Medical Group Hudson Valley 53 Peekskill Hollow Road Call for an Appointment Opens in Google Maps 53 Peekskill Hollow Road Putnam Valley, NY 10579 Opens in Google Maps Directions Contact 845-528-5700 Main For department phone numbers please see Contact Us. SpecialtiesNephrologyInternal Medicine Our Doctors Internal Medicine Edyta Skladizinska-Reyher, MD Nephrology Madhavi Katikaneni, MD Anastasios Papanagnou, MD, FASN Our Facility Use the left and right arrow keys to navigate the gallery Contact Us Medical Group Hudson Valley 53 Peekskill Hollow Road, Putnam Valley, NY 10579 Opens in Google Maps 845-528-5700 Internal Medicine 845-528-5700 Nephrology