Brian L. Katz, MD FACS

Thyroid nodules, parathyroid disease, melanoma consultations – surgical problem-solving defines the work here. Brian L. Katz, MD FACS specializes in endocrine surgery across the neck and skin, fields where precision matters most. A hyperparathyroid crisis needs the same sharp approach as a complex thyroidectomy; each case moves forward without unnecessary layers. Lumps, bumps, and abnormal scans don’t wait—neither do the protocols that turn diagnosis into definitive treatment. On the Upper East Side, the practice sits tucked between Park and Madison at 1010 5th Avenue, New York, NY 10028. Skin cancer checks and biopsies share the roster with thyroid lobectomies and subtotal parathyroidectomies—endocrine surgery distilled to its clearest steps. The building’s Third Avenue corner placement makes it easy to slide in before or after errands along 5th. No waiting room tours, no extra slideshows; just the consultation space where scans meet the scalpel. Add contact info once near the end: call (212) 879-6677. For the fastest path in from the FDR or cross-town lines, drop the pin at https://www.google.com/maps/place?ftid=0x89c2589652109d0b:0xa2f5437ddd5567c. This is one of those Upper East Side stops that disappears into the neighborhood until you actually need it.