Providers Print | Email Physicians Leroy B. Fleischer, MD Alan Groth, DO Stephen Humbert, DO Sakthipriya Janarthanan, MD Scott Kurzrok, DO Daniel Martin, MD Karl Schwabe, MD Robert Shusman, MD Christine M. Zabel, DO Nurse Practioners Megan Breslin, CRNP Meg Hall, CRNP Rachel Hefner, CRNP Physician Assistants Ray Ferraro, PA-C Joan Ward, PA-C