Dermatology Clinic Locations Contact Barrett & Geiss Dermatology today! (740) 687-1177 Dermatology Clinic Locations Contact Barrett & Geiss Dermatology today! 740.653.0374 Lancaster, OHBook Online 1566 Monmouth Street Suite 201 Lancaster, OH 43130(740) 687-1177(740) 687-1661LOCATION HOURSMONDAY - THURSDAY...8:30 AM - 4:30 PMFRIDAY...8:30 AM - 3:30 PMSATURDAY - SUNDAY...CLOSEDGranville, OHBook Online 2000 Newark Granville Rd #202, Granville, OH 43023(740) 587-3376LOCATION HOURSMONDAY - THURSDAY...8:30 AM - 4:30 PMFRIDAY - SUNDAY...CLOSED