Leadership 2018-06-21T20:56:34+00:00

Our team embodies our core values:

We are transparent, visible, trusted with over 20 years

Our Valuable Team Members

Jeff Robertson
Jeff RobertsonCEO | President
A passion for Healthcare is the best way to describe Jeff Robertson. He has a unique, varied and extensive background in Healthcare that covers a wide array of experience encompassing 22 years. Jeff is board certified by the American College of Medical Practice Executives to be a Practice Manager and is a proud member of MGMA. Jeff is also a member of HBMA and continues to keep his knowledge current and focused on future trends and initiatives and how they affect our Healthcare system. Jeff has been actively running the Revenue Cycle Management and Practice Management divisions since 1999. Jeff Robertson has spent over 18 of the last 22 years in Outpatient Physician Clinics with a special focus on Healthcare IT, Revenue Cycle and Workflow Analysis. His passion and love of teaching, consulting and finding a better, more efficient way to build processes into a clinic has led to him being labeled the “Practice Fixer”.
Julius Cabacungan
Julius CabacunganDirector of IT
Julius has been in the fast paced IT support industry for more than 20 years. He utilizes his accumulated experience as Senior Systems and Network administrator to quickly analyze the variety of IT situations and provide the most effective and efficient solutions. Since Julius joined Nexsys, he has integrated his vast IT knowledge with the understanding of Electronic Medical Records systems. This resulted in helping all Nexsys clients have operational integrity of their EMRs and computer systems. Julius has bachelor’s degree in Electronics Engineering and has MCSE (Microsoft) and CCNA (Cisco) certifications. He enjoys sports and loves playing tennis. He and his wife have two daughters.
Gelson Viera
Gelson VieraController
Gelson Vieira is a 20 plus year veteran in the area of finance, with 8 years of experience in external audit Coopers & Lybrand. He also spent time with the internal auditing department in Europa and the Middle East during his years at AIG Insurance Company, Gelson’s tremendous knowledge of multiple languages including Portuguese, Spanish, French and Italian made him a great asset for the international companies and divisions where he worked.
Gelson also worked in Southern California where he was the general manager for a large restaurant chain. He worked for 14 years and managed over 250 employees.
Prior to joining Nexsys Gelson was in Brazil where he headed a project to teach English literacy to low income students as part of the preparation for the then pending 2014 Soccer World Cup and the 2016 Olympics that would follow in Brazil.
Jerson Flores
Jerson FloresIT Administrator
Jerson has been an IT System Administrator/Engineer for over 10yr. has extensive experience as a Senior Technical Support Administrator and Network Engineer. He built valuable experience providing in-house, on-site and remote end user technical support throughout his career. Jerson has also provided project management, server administration, deployment and infrastructure support for medium sized and enterprise businesses.

Jerson focuses his time on automation and customization of the EHR for improved workflow. Jerson holds a Bachelors Degree in Software Engineering and multiple Certifications including, MTA, MCSE, CCA-V. He spends most of his free time with his two daughters or on his hobbies spare. as he’s an avid Photographer/Musician

Carolyn Martin
Carolyn MartinCredentialing, Patient A/R
Carolyn has been with Nexsys for over eight years, she has brought to Nexsys over 25 years of experience in the medical field as an insurance and patient collector and auditor, both commercial and government policies; she offers her knowledge to our clients in processing and collecting on PI (personal injury) cases and Worker’s Compensation claims. She, also, is the director of the Provider Credentialing department and our “go to” gal for any research regarding Human Resources and/or legalities. Carolyn has proven to have excellent communication skills with our clients and their patients with compassion and patience.
Carolyn has a college level education, a mother of two sons and a grandmother of three beautiful grandchildren. Her favorite pastime is with the grandchildren in teaching keyboard and painting; number one fan at their soccer games, recitals and swimming events.