James C. Nielsen, MD

Pediatric cardiology often feels like a quiet corner of medicine—until it becomes urgent. James C. Nielsen, MD practices in the Kips Bay neighborhood, where families find specialized care without leaving the East Side. The office sits at 424 E 34th St 7th Floor, New York, NY 10016, a building shared with other medical professionals, making it a practical stop for appointments that require coordination.

Children with heart murmurs, congenital defects, or rhythm irregularities are seen here; the focus remains on diagnosis and long-term management. Electrocardiograms, echocardiograms, and stress tests are part of the routine, though parents typically arrive with referrals already in hand. The practice doesn’t handle emergencies—those go to the hospital—but it does provide continuity for kids who need regular monitoring.

Scheduling a visit means calling (212) 263-5940 during weekday hours. No online booking is available, so a quick phone call saves time. The staff answers questions about insurance, paperwork, and what to expect during the first appointment. Directions can be pulled up on any phone using the map.

Kips Bay itself is a mix of hospitals, apartment towers, and small parks—convenient for families coming from Murray Hill or Gramercy. The building’s elevators are fast, and the seventh floor is easy to spot once you step off. Bring a book; the wait can stretch longer than expected.