Jeffrey A. Buckner, M.D.

In a city where specialists often cluster in midtown corridors, this office quietly occupies a stretch better known for travel agencies and quiet lobbies. Jeffrey A. Buckner, M.D., practices on the fourth floor of 274 Madison Avenue, a straightforward setting for hematology—the kind of care that doesn’t need a marquee to get noticed. The neighborhood is all brick and glass after hours; by day, it hums with the practical rhythm of professionals who need precision, not pageantry.

Inside these walls, the focus stays on blood and bone marrow rather than showrooms or stock tickers. Referrals arrive from oncologists and primary-care physicians, then fan out again after consultations that cover chronic leukemias, non-Hodgkin’s lymphomas, and the nuanced world of coagulation disorders. Transfusions, interpretation of bone-marrow biopsies, and long-term management plans sit alongside second opinions; every case arrives tagged, tested, and ready to be sorted.

Even the paperwork understands the stakes. Insurance authorizations, lab summarization, and follow-up timelines move through the same channels patients do—no side doors, no VIP shortcuts. The phone line rings straight through to the team; between 9 and 5 it’s (212) 689-0040, a voice without echo or delay.

Find the entrance beside the shoe-repair shop; the elevator bank is just past the security desk. Plot your route once and forget the detours: directions here keep the grid simple.