New Search 1741 Joseph C. Prohaska DO (423) 318-0014 Primary Specialties Dermatology (Board Certified) Languages Spoken: English Primary Office Address: HealthStar Physicians, PC 1907 W Morris Boulevard Suite G Morristown, TN 37813 Phone: (423) 318-0014 Fax: (423) 318-2595 Recommend this Physician Get Directions Education Medical School: Midwestern University Residency: Sampson Regional Rotating Internship: Hillsdale Hospital