Complex & recurring infections
Pediatric Infectious Disease on the Upper East Side
Fellowship-trained infectious disease expertise for tricky, recurring, or unusual infections without a hospital referral.
Dr. John Larsen completed his pediatric infectious disease fellowship at Mount Sinai, has published scholarly articles in the field, and is an associate clinical professor at Mount Sinai. He's been the office expert on infectious disease and pediatric dermatology since 1985.
Having a pediatric infectious disease specialist in the same Upper East Side office as your pediatrician means faster answers when an infection doesn't follow the usual script.
What we offer
Recurrent infections
Ear, throat, sinus, and urinary infections that keep coming back.
Skin infections & rashes
Cellulitis, MRSA, impetigo, and rashes that need a closer look.
Fevers without a clear source
Prolonged or unexplained fevers that need a careful workup.
Tick bites & Lyme disease
Guidance after summers upstate, in the Hamptons, or at camp.
Travel medicine
Pre-travel advice and vaccines, and care for illness after travel.
Vaccine questions
Evidence-based answers for families who want to talk through immunizations.
Questions about pediatric infectious disease
My child keeps getting ear infections. Should we see a specialist?
Start with your pediatrician, who can review the pattern. Dr. Larsen can help evaluate infections that are unusually frequent, severe, or hard to treat.
More care at Uptown Pediatrics
Birth through adolescence
Pediatric Primary Care
Checkups, vaccines, and same-day sick visits with pediatricians who get to know your family for years.
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The first weeks
Newborn Care & Lactation Support
A whole newborn and lactation team: prenatal visits, Mount Sinai nursery rounds, a separate newborn waiting area, and in-office breastfeeding help from Nurse Mesi.
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Teens & young adults
Adolescent Medicine
Confidential, respectful care for teenagers from a fellowship-trained adolescent medicine specialist, with mental health support from our in-house psychiatrist.
Learn moreReady to join the Uptown Pediatrics family?
We welcome new patients from newborns to teens.
New to Uptown Pediatrics
Email us to become a patient
Tell us your child's age and insurance, and we'll get back to you to set up a first visit.
Email ushello@upnyc.pcc.com · Please leave out symptoms and medical details.
Already a patient
Message us in the patient portal
Send us a message to set up a checkup or follow-up, or to ask your doctor a question. You can also see records there.
Message usSick today? Call for a same-day appointment, or just stop by weekdays 9:30-3.
Prefer to talk? Call us at 212-427-0540