["https:\/\/schema.org\/","Person","Karcnik, David, M.D.","Dr. Karcnik hails from upstate NY and central NJ. He went to medical school in Mexico and completed his Family Medicine residency in Chicago. He moved to Staten Island to be close to family in NJ. He is passionate about primary care and substance use\/behavioral health. In his free time, he likes to exercise, play […]",{"@type":"ImageObject","@id":"https:\/\/rumcsi.org\/wp-content\/uploads\/2026\/02\/David-Karcnik-3-E3-Crop4-100kb-002.jpg","url":"https:\/\/rumcsi.org\/wp-content\/uploads\/2026\/02\/David-Karcnik-3-E3-Crop4-100kb-002.jpg","height":288,"width":260},"https:\/\/rumcsi.org\/doctors\/karcnik-david-m-d\/"]