Doctors Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Find doctors and medical staff: Edit search filters close Narrow your search Doctor's Name, Condition Or Procedure By location Jacksonville, FL By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G active Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K There are no doctors whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M Find a doctor whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z By procedures performed No results found By spoken language No results found Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: H John Haney, M.D., M.P.H. Cardiovascular Surgeon Cardiothoracic Surgeon Transplant Surgeon Jacksonville, FL Areas of focus: Heart transplant, Coronary bypass surgery, Lung transplant, Aortic valve repair and replacement, Tricuspid valve repair... and replacement, Extracorporeal membrane oxygenation, Mitral valve repair and replacement, Aortic root surgery, Septal myectomy, Aneurysm surgery, Heart surgery, Lung surgery, Pericardiectomy, Endarterectomy Show more areas of focus for John Haney, M.D., M.P.H. Request an appointment Conditions treatedExpertise & rankings May 26, 2023 Share on: FacebookTwitter Thoracic SurgeryDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals ORG-20380885 Medical Departments & Centers Thoracic Surgery