Provider Directory Back to provider directory Gene Chang, MD Interventional Cardiology 215.662.9000 PHI Building, 4th Floor 39th & Market Streets Philadelphia, PA 19104 Phone: 215.662.9000 Fax 215.243.4637 Organization Penn Medicine Status Consulting PHI Building, 4th Floor 39th & Market Streets Philadelphia, PA 19104 Phone: 215.662.9000 Fax 215.243.4637