Our Physicians

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Luis F. Valles, MD, FAAP

Dr. Valles has owned Reading Pediatric Associates since 1993 and has practiced as a pediatrician for over 30 years! He is the medical director of the Winchester Independent Practice Association and is fluent in Spanish.

Regular Schedule:
Afternoons: Monday, Tuesday, Thursday, Friday


 

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Nicholas S. Kasdon, MD, FAAP

Dr. “NICK” Kasdon graduated from Tufts School of Medicine in 2000 and has been with Reading Pediatric Associates since completing pediatric residency in 2003. He is Board Certified in general pediatrics, and has a special interest in Childhood Development and Adolescent Medicine. He is also a Pediatric Site Clerkship Director for Tufts University School of Medicine.

Regular Schedule:
Mornings: Monday, Wednesdays, Thursday
Afternoons: Monday, Wednesday, Thursday, Friday


 

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Haesik Min, MD, FAAP

Dr. Min has been part of Reading Pediatric Associates since 1994 after completing her pediatric training at Tufts Medical Center in Boston. She speaks fluent Korean.

Regular Schedule:
Mornings: Monday, Tuesday, Wednesday, Friday
Afternoons: Tuesday, Wednesday


 

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Tess M. Alejo, MD, FAAP

Dr. Alejo has been a practicing pediatrician since 1993 and has been with Reading Pediatric Associates since 2010. She completed her pediatric residency at the State University of New York at Stony Brook and has a special interest in food allergies and eczema. She is fluent in Filipino.

Regular Schedule:
Mornings: Tuesday, Thursday, Friday
Afternoons: Monday, Tuesday


 

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Darcey Santos, PNP

Darcey Santos has been with Reading Pediatric Associates since 1995. She is Board Certified and an experienced Pediatric Nurse Practitioner, having earned her degree at the MGH Institute of Health Professionals. Darcey has a special interest in Asthma.

Regular Schedule:
Mornings: Monday, Tuesday, Wednesday, Thursday
Afternoons: Tuesday, Wednesday, Friday