Learn how to manage your condition under the care of Dr. Josephine Jasper, a board certified endocrinologist and voted one of NJ's top practitioners. ... Now serving patients in Marco Island and Naples, Florida. Marco Island. 40 Heathwood Drive Suite E Marco Island, FL 34145-5029. Naples. 700 2nd Ave N. Suite 204 Naples, FL 34102-5701. Phone ....