According to our records, this business is located at 12395 Cobb Rd. in Omaha (in Boone County), Arkansas 72662, the location GPS coordinates are: 36.422972 (latitude), -93.161272 (longitude). John H Sinclair DDS is categorized under Dentists (SIC code 8021). Known organization owner is John Sinclair. Current estimates show that the unit has a sales volume of $44,000 and staff of approximately 1 worker. You can contact the company by phone at (870) 426-3664.