Jan Kulhanek, MDRyan Meineke, MDGregory Loren, MDNathan Hammel, MDChristopher Hajnik, MDJustin Chan, MDLuke Bremner, MDLouis Gilles, DPMRyan Marr, ODYan Xing, MD

Jan Kulhanek, MD

Jan Kulhanek, MD
Doctor Kulhanek specializes in all aspects of general cardiovascular health. He performs a wide array of procedures, including coronary angiography, stenting, balloon angioplasty and vascular interventions. Dr. Kulhanek is certified to perform echocardiography, and nuclear cardiology procedures, as well, as non-invasive CT coronary angiography. Dr. Kulhanek strives to help patients with complaints of chest discomfort,…
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Ryan Meineke, MD

Ryan Meineke, MD
Dr. Meineke is a native San Diegan having grown up in Del Mar where he attended Torrey Pines High school. He went on to obtain his Bachelor of Science from the University of California Los Angeles and his Medical Doctor degree from the University of Cincinnati where he was able to spend time with his…
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Gregory Loren, MD

Gregory Loren, MD
Dr. Loren was born in Orange County, California, and earned his Bachelor of Science Degree, Summa cum Laude, in 1987 from the University of California, Irvine, School of Biological Sciences. As an undergraduate, he was elected to the Phi Beta Kappa National Honor Society. In 1991, he was awarded his Doctor of Medicine Degree from…
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Nathan Hammel, MD

Nathan Hammel, MD
Dr. Hammel is a general orthopaedic surgeon. He is committed to the highest level of surgical expertise and is able to provide comprehensive care for all orthopaedic patients. He has a particular interest in tumor care, joint replacement surgery, and fracture care. Dr. Hammel is recognized as a national lecturer regarding Orthopaedic Oncology and has…
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Christopher Hajnik, MD

Christopher Hajnik, MD
Dr. Hajnik was raised on the Central Coast of California and earned his Bachelor of Science degree from the University of Notre Dame in 1994. During his senior year at Notre Dame, he was honored with “All-American” distinction while serving as captain of the NCAA National Champion fencing team. He continued his education at Notre…
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Justin Chan, MD

Justin Chan, MD
Dr. Justin Chan was born and raised in Los Angeles, California. He attended the University of California, San Diego where he earned his Bachelor of Science degree in Biology, cum laude, and was elected to the Phi Beta Kappa National Honors Society. He stayed in San Diego to earn his Doctor of Medicine degree at…
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Luke Bremner, MD

Luke Bremner, MD
“I chose medicine because of a sense of helplessness when my best friend developed cancer as a youth and desire to do something more in the future. I chose the military out of a sense of duty to my country. I chose to move on to the civilian world out of a sense of obligation…
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Ryan Marr, OD

Ryan Marr, OD
Dr. Ryan Marr grew up in Sunnyvale, California and attended the University of California, Davis where he earned his bachelor’s degree in Biochemistry and Molecular Biology. His own struggles with his vision during his childhood combined with his passion for healthcare inspired him towards a career in Optometry. He obtained his doctorate in Optometry at…
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