David S. Klimstra, MD - MSK Pathologist

On the quiet side of York Avenue, past the morning rush of hospital traffic, the office remains a steady point for care beyond scans and scans. David S. Klimstra, MD - MSK Pathologist sits a few blocks from the bigger clinical towers, a deliberate choice for patients who prefer the slower street rhythm. A two-minute walk from the corner of East 68th, the building holds a single suite on the 12th floor.

Inside the suite, the practice specializes in musculoskeletal pathology—soft-tissue tumors, bone lesions, and intraoperative consultations on suspicious masses. They also handle second-opinion reviews on outside slides, often paired with clinical correlation, diagnostic immunohistochemistry, or molecular pathology work-ups when needed. The most common incoming question is still the straightforward “Is it benign or malignant,” followed by requests for detailed synoptic reporting aligned with current guidelines.

Arriving at 1275 York Ave places you on the southeast corner of that block: cross under the amber canopy, take the elevator to Level 12, Suite 1240, and check in at the glass-walled reception. For appointments schedule by calling (347) 798-9501—press 0 after the automated greeting and a staff member will confirm the slot or route your inquiry. After hours, the map is always open: head here to chart the route instead of guessing U-turns at York.