Visionary Healthcare

The Power of Combined Experience

Our executive leadership team averages 25 years of experience in the concierge healthcare field

Executive Team

Steven Schnur, M.D.

CEO and Founder

Alina Rivera, M.D.

Medical Director

Candice Lederman

Director of Concierge Membership

Karen Gumpel

Business Development

Maria Rufin

Chief Financial Officer

Agustina Visconti

Marketing and PR

Eva Blandino

Data and Analytics Management

Dylan Schnur

Operations Intern

Advisory Board

Carlos del Río, M.D.

Infectious Disease Specialist and Advisor

Dr. del Río is a distinguished professor of medicine at Emory University School of Medicine. He is also a professor of global health and epidemiology at the Rollins School of Public Health of Emory University, executive associate dean of Emory University School of Medicine at Grady Health System and co-director of the Emory Center for AIDS Research.

He is a member of the National Academy of Medicine and was elected as its foreign secretary in 2020.

Kenneth Ratzan, M.D.

Infectious Disease Specialist and Advisor

Dr. Kenneth Ratzan is the Chief of Infectious Diseases and the Hospital Epidemiologist at Mount Sinai Medical Center. He is a graduate of Amherst College and Harvard Medical School. Dr. Ratzan joined the University of Miami Department of Medicine in 1972 and Mount Sinai Medical Center in 1975. Dr. Ratzan’s expertise is in general infectious disease including HIV and hepatitis.

He is a Professor of Medicine at the Miller School of Medicine at the University of Miami.

Richard A. Shlofmitz,
M.D., F.A.C.C.

Cardiologist and Internal Medicine Advisor
Dr. Schlofmitz is Chairman of Cardiology at St. Francis Hospital, The Heart Center, where he has practiced since 1987. Performing over 1,000 coronary interventions annually, he has one of the largest volumes of experience in Percutaneous Intervention. He also has the most clinical experience with orbital atherectomy and optical coherence tomography (OCT) world-wide. Dr. Shlofmitz has been one of the largest enrollers for multiple clinical trials, with more than 50 publications in peer-reviewed cardiology journals. Dr. Shlofmitz has worked to advance the field with a focus on Precision PCI. He is a founding co-director of the annual Intravascular Imaging and Coronary Physiology Course.

Emma Guttman-Yassky, M.D., Ph.D.

Waldman Professor of Dermatology Board Medical Advisor

Emma Guttman-Yassky, MD, PhD is the system chair of the department of dermatology, and the Waldman Professor of Dermatology and Immunology at the Icahn School of Medicine at Mount Sinai, New York. She is the Director of the Center of Excellence in Eczema and the Laboratory for Inflammatory Skin Diseases.

Andy Jacobson

Telehealth Board Advisor

Andy Jacobson is a leading entrepreneur and innovator in the nation’s telemedicine industry. Through his vision and leadership as founder and chief executive officer of 1.800MD LLC.

Prior to launching 1.800MD, Mr. Jacobson spent more than 19 years in the employee benefits and insurance industry holding positions of increasing responsibility in sales, marketing, management, product design, pricing and underwriting at The Paul Revere Insurance Group and Guarantee Life Insurance Company. In 1999, Mr. Jacobson co-founded and served as managing partner for the Meridian Companies, an employee benefit wholesale distribution and single-source administration company.

Aviel Lemus, M.D., F.A.A.P.

Fellow of the American Academy of Pediatrics

A graduate of Harvard University with a degree in Biochemical Sciences, Dr. Aviel Lemus received his medical degree from Tel Aviv University School of Medicine and completed his residency at Tulane University. His research has focused on mechanisms of antiviral drug resistance and the evolution of viral species in patients receiving antiviral treatments.  
He is a staff physician at Joe DiMaggio Children’s Hospital where he has taught Outpatient Pediatrics for the Memorial Healthcare System Pediatric Residency Program.

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