Our Physicians

Daryl R. Ehlenfield, M.D.
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Dr. Ehlenfield is a Board Certified Pediatrician and has been in practice for over 20 years. He earned his medical degree from the State University of New York at Buffalo School of Medicine and completed his residency training at the Women and Children’s Hospital of Buffalo. Dr. Ehlenfield is also Medical Director for the Grand Island School District.

Danielle Conley, M.D.

​Dr. Conley is a Board Certified Pediatrician who has been in practice locally for over 10 years. She holds a medical degree from the State University of New York at Buffalo School of Medicine and completed her residency training at the Women and Children’s Hospital of Buffalo.

Our Nurse Practitioners

Anna M. Couell, FNP
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Anna Couell is a Board Certified Family Nurse Practitioner who is excited to join the team at Allentown Pediatrics. She earned her nursing degree from the State University of New York College at Brockport, and her nurse practitioner degree from D’Youville College. She is a member of the National Association of Pediatric Nurse Practitioners (NAPNAP).

Courtney Mercer, FNP
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Courtney Mercer is a Board Certified Family Nurse Practitioner who earned her Nursing Degree from Drexel University in 2005 and her Nurse Practitioner Degree from D’Youville College in 2017. She is also a Certified Lactation Counselor (CLC) and is passionate about supporting families in a non-judgemental atmosphere through their individual breastfeeding journey. Courtney is also a member of the National Association of Pediatric Nurse Practitioners (NAPNAP).

Cassandra Swan, PNP

Cassandra Swan is a Board Certified Pediatric Nurse Practitioner who is excited to join the team at Allentown Pediatrics. She earned her nursing degree from St. John Fisher College and her nurse practitioner degree from Stony Brook University. She is a member of the National Association of Pediatric Nurse Practitioners (NAPNAP).