Concierge Medicine · Upper East Side · New York
Medicine practiced
the way it was
meant to be.
A private concierge practice on Park Avenue — where time, trust, and four decades of expertise define the standard of care.
This practice accepts a limited number of patients — by design.
What you receive in return is rare: same-day access, appointments that are never rushed, and a physician who knows you — not your chart. Feltheimer Comprehensive Care exists for patients who expect more, and who understand the value of a relationship built on genuine continuity of care.
Direct Access
Same-day and next-day appointments. A physician you can reach directly — not a call center, not a portal, nor a nurse triage line.
Unhurried Care
Every appointment is designed around your needs and your timeline. There is no pressure to move on. There is only the work of understanding you thoroughly.
True Continuity
Specialist referrals, test interpretation, hospital coordination — handled with the consistency of a physician who has known you for years, not minutes.
Seth Feltheimer,M.D.
Internal Medicine · Columbia University Medical Center
Dr. Seth Feltheimer has practiced internal medicine in New York City for more than four decades — the majority of that time at Columbia University Medical Center, where he was an Associate Clinical Professor of Medicine and Associate Attending Physician.
His career spans clinical practice, academic medicine, international health, and medical leadership. He has trained residents and medical students, directed managed care and international medicine programs, and served on the executive boards of some of New York's most respected medical institutions. He is bilingual in English and Spanish.
Feltheimer Comprehensive Care is the natural next chapter — a practice built entirely around the kind of medicine Dr. Feltheimer has always believed in: thoughtful, personal, and unhurried.
- 1995 – 2026 Associate Clinical Professor of Medicine, Columbia University Medical Center
- 1984 - Present Board Certified, Internal Medicine — American Board of Internal Medicine
- 2018 – Present Fellow, American College of Physicians
- Education B.A. Chemistry, Johns Hopkins University · M.D., University of Navarra School of Medicine
Repeatedly named Best Doctors by New York Magazine and Top Doctors by Castle Connolly — continuously since 1992.
Membership
A different relationship
with your physician.
Membership at Feltheimer Comprehensive Care is offered to a carefully selected number of patients. The following outlines what that relationship includes.
Same-Day Access
Appointments available the same day or next day. Direct communication with Dr. Feltheimer — no intermediaries, no delays.
One Physician
Every visit, every call, every decision — with the same physician who knows your complete history. No rotating providers, no handoffs.
Extended Appointments
Time to address your concerns completely. Appointments are scheduled to allow for thorough evaluation, not efficient throughput.
Direct Communication
Reach Dr. Feltheimer directly for questions, results, and guidance. A genuine point of contact — available when it matters.
Comprehensive Coordination
Specialist referrals, test results review, second opinions, and hospital coordination — managed with continuity and expertise.
Preventive Focus
Wellness planning, annual comprehensive evaluations, and proactive management — care that is designed to get ahead of problems, not simply respond to them.
We invite a limited number
of new patients each year.
If you are considering a different standard of care — more personal, more accessible, more thorough — we would welcome the conversation. The Meet & Greet is complimentary, and there is no obligation.