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PAY A BILL Patient Portal 859.263.4444



The Dermatopathology Reference Laboratory (DRL) at Dermatology Associates of Kentucky is a full-service, licensed, medical laboratory dedicated to evaluating and diagnosing diseases of the skin, hair and nails.

Lab with lots of instrumentsDRL provides lab services to patients of Dermatology Associates of Kentucky and referring physicians. When a biopsy is taken, the specimen is transported to our laboratory for processing and interpretation by our board-certified dermatopathologist, Fernando de Castro. Dr. de Castro completed his residency and fellowship training at Mayo Clinic in Rochester, Minnesota, and is board certified in Dermatology, Dermatopathology, and Clinical and Laboratory Dermatological Immunology. With more than 20 years of experience diagnosing cutaneous diseases, Dr. de Castro is focused on providing clinicians and their patients with accurate, reliable, and timely results.

DRL is certified by CLIA and accredited by the College of American Pathologists (CAP), a reflection of DRL’s commitment to provide the highest quality of care.

Lab Services

  • Slide preparation
  • Consultative services
  • Routine H&E staining of skin biopsy specimens
  • Special stains – basic and immunoperoxidase
  • Direct immunofluorescence
  • Mohs services
  • 24 hour turnaround time on routine cases
  • Courier services, free of charge
  • Complimentary shipping and supplies (requisitions, specimen bottles)


We are contracted with many insurance plans. To verify participation with a particular plan please contact our billing department at (859) 263-4444.


We welcome new physician referrals. Offices interested in learning more about the services we offer can contact us at (859) 263-4444.

DAK Locations

108 Diagnostic Drive
Suite A
Frankfort, KY 40601
(859) 263-4444

611 Tighlman Way
Suite B
Mt. Sterling, KY 40353
(859) 263-4444

120 Trade Park Drive
Suite B
Somerset, KY 42503
(859) 263-4444