Dr. John Granquist is a male Cardiovascular Disease Doctor (taxonomy code 207RC0000X) located in Hartford, Connecticut. Dr. John Granquist's NPI Number is #1699821892 and has been listed in the NPI registry for 11 years. Dr. John Granquist's practice location is listed as: Consulting Cardiologists, P.C. 85 Seymour Street Suite 719 Hartford, CT 06106 and can be reached via phone at (860) 522-1761.
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