Sharayne Mark Coffin MD Top Doctor 915 Old Fern Hill Rd Ste A West Chester, Pennsylvania, 19380 Phone: 610-738-2300 Company Name: Chester County Cardiology Associates Doctor Category: General Cardiology Profile Let this business know you found them on Main Line Today's Online Directories. Locations West Chester 915 Old Fern Hill Rd Ste A West Chester, Pennsylvania 19380 Claim/Edit Listing