Calvin Lambert, MD

Upper East Side medical offices tend to cluster near the hospital corridor. Calvin Lambert, MD keeps an office on the second floor at 5 E 98th St, a building that also houses a restroom for patient use. The block sits between Madison and Park, where the neighborhood’s usual mix of pre-war co-ops and corner pharmacies gives way to a quieter stretch of institutional facades.

Appointments are scheduled directly; no online portal is listed. Reaching them means dialing (212) 241-6551 during weekday hours. Directions can be pulled from the map—just don’t expect street-level signage. A second-floor suite number would be useful, but the listing doesn’t provide one.