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Home » Kristin O’Sullivan, MD

Kristin O'Sullivan, MD

Board-certified pediatrician / Pediatric Acute Care Director

Kristin O'Sullivan Pediatrician in Northampton.

I spent my early years in NH, attended college in Worcester (go Crusaders), and tried my hand at lab research first in college (fruit flies and crickets!) and then in Boston (molecular biology, isolating and sequencing HIV). The science was interesting, but what drew me was the human element of this translational research. I entered medical school at Dartmouth and found every rotation intriguing, however where I fit best was Pediatrics. I’m a bit of a kid at heart, I love how fun and resilient children can be, I enjoy solving diagnostic riddles and putting parents minds at ease, and I recognize how each experience in the healthcare setting can impact their future. (Plus there are stickers!)

After Pediatrics residency in California, I moved to Salem, MA where I used my new skills in the Pediatric Emergency Department as well as caring for children admitted to the hospital. I got married to my med school sweetheart and a new opportunity arose, bringing us back to the West Coast for me to join a new Pediatric Urgent Care in California. I utilized my ED skills – suturing lacerations, reducing dislocations, treating asthma and severe allergy reactions, ear infections and rashes – but in a familiar setting and with close collaboration with their primary pediatrician.

As I helped grow that clinic of which I am so proud, I was growing my own family – we have three young children now. Between the pandemic and small children, travel back East to see my extended family (relocated from NH to the Pioneer Valley) was difficult to say the least. Closeness to family, excellent schools, friendly communities and outdoor opportunities all drew us back to the East Coast.

I am excited to be back in New England with my family, and to join Northampton Area Pediatrics, to lend my Urgent Care skills to the NAP community. And my children are excited to experience snow!



    • Undergraduate: College of Holy Cross, B.A., Worcester, MA, 2002
    • Medical School: Dartmouth Medical School, Hanover, NH, 2008
    • Residency: Pediatrics, Children’s Hospital of Orange County, CA, 2011


Memberships and Certifications


      • Medical: urgent care, infectious disease, pain-free interventions, LGBTQ+ youth healthcare
      • Non-medical: baking, kicking the soccer ball around, spending time with my husband and our three beautiful children, and dreaming of traveling