Patient
It's very rare that you come across a doctor who is 10/10 across the board, Dr. Callahan is the embodiment of clinical excellence. Extremely knowledgeable and invested in his complex field of work, hard-working and always willing to go the extra mile for his patients, and as caring and compassionate as a person can be. Even when my family's case was no longer under the scope of his care, we reached out to Dr. Callahan for his thoughts regarding some very difficult decisions we were facing, and he visited our hospital room in person to weigh in on the case and its implications from an electrophysiology perspective. He had no stakes in this admission for a cardiothoracic surgery, yet he somehow offered the most attentive and reassuring care of any provider we interfaced with. I genuinely do not believe a patient's care could be in better hands.