Office Staff

The staff at USC Fertility is a tight-knit family of professionals who will welcome you into the fold and make the path of your fertility journey as clear and easily traveled as possible. In addition to the significant individual expertise of each member of our staff, the collective expertise is unique in that our staff has been together for many years. Led by Dr. Richard Paulson for the last 20+ years, the staff of USC Fertility is eager to put their expertise and camaraderie to work for you.

USC Fertility’s proficient office staff is dedicated to ensuring a smooth and worry-free administrative process so that the patients at USC Fertility can focus on their most vital goal – achieving a successful pregnancy. This team’s attention to scheduling, billing and record keeping helps to make the administrative portion of your time at USC Fertility as brief and worry-free as possible.


  • Ani Derhartonian, MBA -Administrator, Division of Reproductive Endocrinology and Infertility
    Ani has operational and financial over site of the Division of Reproductive Endocrinology and Infertility at Keck School of Medicine, as well as UCAR Surgery Center. She has over 15 years of leadership experience. She completed her MBA at University of Redlands, and BA in Literature at University of California at Irvine.

  • Diana Pagdilao -Physician and Patient Liaison
    Diana joined our team in 2013 with over five years of experience in customer service. Diana completed a BA in Recreation & Leisure Studies with an emphasis in Event Management at California State University, Long Beach. She primarily works at the front desk to welcome patients as they arrive, works directly with the physicians to coordinate efficient scheduling, ensures smooth daily functionality of the office, and plans the biennial Baby Reunion.

  • Johanna Morales -Medical Biller
    Johanna joined the practice in 2013 as a receptionist/medical biller. She has two years of experience working with patient accounts with the USC Department of Medicine Business Office where part of her responsibility included insurance verification. Johanna reconciles and audits patient accounts for accurate billing and collections and when needed steps in to cover the front office as a receptionist.

  • Esmeralda LeFonts -Medical Secretary
    Esmeralda joined the practice in 2005 and has over 17 years of front office experience. She is in charge of training the front staff in proper operations, oversees the consultation schedules of physicians, and processes the requests for medical records.

  • Ashley Stevenson -Medical Secretary
    Ashley joined the team in 2014 after completing her Medical Administrative Assistant training in 2012. Her training and previous front office experience in family medicine played an integral role in her being a part of the USC Fertility front office team. She is responsible for managing the daily appointments, receives patients upon checkout, and assists the laboratory with their clerical needs.

  • Hazel Olague -Financial Counselor
    Hazel came to the practice in 2013 from the USC Department of Medicine Business Office. Her five years of experience and expertise learned from the Department of Medicine eased her transition to USC Fertility. She is responsible for educating the patients on treatment costs and works closely with patients who have Meritain or Harrington supplemental insurance through their Kaiser coverage.

  • Gayane Kouyoumdjian -Financial Counselor
    Gayane joined the practice in 2013 with over 23 years of billing experience. Her primary role is to educate potential and current patients on treatment costs and helping patients obtain itemized statements to submit to their insurance company for reimbursement.