DERMAQ™ is the premier provider of Dermatopathology services, capable of fulfilling unique dermatology practice requirements.  We are an efficient, quality–focused partner whose services include:

  • Board Certified Dermatopathologists
  • Global and Technical Only biopsy services
  • 24-48 hour turnaround time
  • Immunohistochemistry – over 100 antibodies including HMB-45, Melan-A, SOX-10, and S-100
  • Histochemical Stains – broad panel of stains including Colloidal Fe and Fungal stains
  • Immunofluorescence – direct and indirect
  • Customized color reports and interactive consultative correspondence with clients

In addition, we provide advanced IT support and logistics.

Our commitment to provide comprehensive and superior quality Dermatopathology services in a timely manner allows us to advance diagnostic testing for dermatology practices, while providing solutions to the most challenging patient diagnoses.


  • Harvey C. Chang, M.D.

    Read Bio

    Harvey C. Chang, M.D.

    Dr. Chang joined YPMG in 1997.  He obtained his medical degree at the National Taiwan University College of Medicine in Taipei, Taiwan.   Dr. Chang completed his Anatomic and Clinical Pathology Residency at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania and a fellowship in Research at Jefferson Cancer Institute in Philadelphia.  He also completed a fellowship in Dermatopathology at the Institute for Dermatopathology, Jefferson Medical College in Philadelphia, Pennsylvania.  Dr. Chang is Board certified in Anatomic and Clinical Pathology and Dermatopathology.

  • Masoud Asgari, M.D.

    Read Bio

    Masoud Asgari, M.D.

    Dr. Asgari joined YPMG in 2018. He obtained his medical degree from Ghazvin Medical University in Ghazvin, Iran and after 5 years of collaboration with Dr. A. Bernard Ackerman and Dr. Geoffrey Gottlieb at the Ackerman Academy of Dermatopathology in New York City, he completed his residency at Northwell Health–Staten Island University Hospital. Then, Dr. Asgari completed a Dermatopathology fellowship at the Wake Forest Baptist Medical Center in Winston-Salem, North Carolina. He is board-certified in Anatomical and Clinical Pathology with sub-specialty board certification in Dermatopathology. Dr. Asgari is the author of over 30-peer-reviewed publications.

  • Prakash Chaudhari, M.D.

    Read Bio

    Prakash Chaudhari, M.D.

    Dr. Chaudhari is a graduate of B.J. Medical College and Seth KM School of Postgraduate Medicine and Research in Ahmedabad, India. He completed his residency in Anatomic and Clinical Pathology at the Maimonides Medical Center (Brooklyn, New York), followed by a fellowship in dermatopathology at the Institute of Dermatopathology, Jefferson Medical College under the direction of the world-renowned expert Dr. A. Bernard Ackerman (Philadelphia, PA). Dr. Chaudhari spent the last two decades of his career specializing in inflammatory and neoplastic conditions. It is, and has always been, his mission to provide superior dermatopathology services to his patients.

  • Darren Whittemore, DO

    Read Bio

    Darren Whittemore, DO

    US board-certified in Anatomic and Clinical Pathology and Dermatopathology

    Completed fellowship in Dermatopathology at the University of Texas Health Science Center at Houston

    Completed Anatomic and Clinical Pathology residency at the combined US Air Force Wilford Hall Medical Center/Brooke Army Medical Center Program in San Antonio, TX