Mid-State Occupational Health Services, Inc.

Derrick J. Duff
derrick@midstateohs.com



Warren J. Duff Director, Operations and IT wduff@midstateohs.com

Frank L. Conly, M.D. Medical Director lconly@midstateohs.com
James J. Dolan III, M.D. jdolan@midstateohs.com
Carrie B.Friese, MHS, PA-C cfriesepa-c@midstateohs.com

Geraldine Q. Duff Office Manager geraldine@midstateohs.com
Beth Eckroth, RMA Medical Attendant williamsport@midstateohs.com
Sara M. Charles Receptionist williamsport@midstateohs.com


Melody F. Sandrin Audiometric Program Administrator melody@midstateohs.com
Timothy W. Lorson Audio Technician
Jeffrey L. Baier Audio Technician


Terry G. Schreiber Director terry@midstateohs.com
Chandra H. Spring DeWald Substance Abuse Administrator chandra@midstateohs.com


Barbara M. Rishel
James W. Gilbert


Kimberly A. Carr, EMT Health Director
Amos A. Leon, EMT
Dale E. Miller, EMT



Kim Olszewski, MSN, CRNP, COHN-S/CM, FAAOHN Vice President kim@midstateohs.com

Kimberly L. Ferguson Office Manager lewisburg@midstateohs.com



Barbara Hilbert Director of Operations barbara@midstateohs.com

Catherine Rainey, MD, M.P.H. Medical Director drrainey@midstateohs.com
Mark A. Rainey, MD, M.P.H. mrainey@midstateohs.com
Lori C. Pietrowski, RN, MSN, CRNP

Betty Bauman, RN, BSN, COHN-S/CM Registered Nurse betty@midstateohs.com
Madeline Nieves Receptionist madeline@midstateohs.com
Gisela Roth, LPN gisela@midstateohs.com