Nurse Practitioner Specialist Keesha Tyler, CRNP. Nurse Practitioner Specialist Melissa Watkins, CRNP . Nurse Practitioner Specialist ... Please use the Patient Portal for medical questions or prescription refills. 1450 Ross Clark Circle, Suite 400 Dothan, AL 36301. Tel: 334.305.0400 Fax: 334.305.0401..