Occupational Health Program Team

Craig Cheifetz is currently the Regional Dean for the Virginia Commonwealth University School of Medicine Inova Campus and Inova’s Vice President for Corporate Services for which services include: concierge medicine, executive healthcare, occupational health, employee assistance and employee wellness programs. 

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Dr. Ellen Kessler brings more than 25 years of occupational health experience and directorship to the program and is board certified in occupational medicine and internal medicine. In her role as medical director, Dr. Kessler provides program development and consultation services for local governments, corporations, businesses, and hospitals with occupational and environmental issues including exposure to hazardous materials such as asbestos, pesticides and heavy metals. She also works closely with many of the jurisdictions in the Metropolitan Washington area to develop health and safety programs for Sheriff/Police and Fire/ Rescue Departments. Along with the occupational health team, she oversees a multidisciplinary management approach to assess, plan, implement, coordinate, monitor and evaluate the plan of care and/or services to affect positive outcomes in the occupational health setting.

Dr. Kessler received both her medical degree and internal medicine residency training from Georgetown University. She completed a Master of Public Health and her occupational medicine residency at the Johns Hopkins Bloomberg School of Public Health.

Dr. Jennifer Lund joined Inova Health System as the Associate Medical Director of Occupational Health Services in 2022. She works closely with the medical director, the director of occupational health, providers and staff to ensure high quality care is provided to patients and clients. She is board certified in occupational medicine and has been working in occupational medicine since 2014 in clinical and administrative roles across military and civilian programs. Her experiences in occupational medicine have taken her around the world caring for naval aviators in the Middle East and first responders in the Washington, DC, region.

While serving as a U.S. Navy flight surgeon, she was responsible for the health and wellness of aviators and aircrew. She ensured they met the stringent physical standards of naval aviation, assessed for and minimized exposures and risk, and cared for their injuries and illness. Dr. Lund also has extensive experience in the public safety sector, having worked as a staff physician and associate medical director at the Police and Fire Clinic in Washington, DC.

Dr. Lund received her medical degree from the University of New England College of Osteopathic Medicine and her master's in public health from the Johns Hopkins School of Public Health. She completed her internship in internal medicine at Walter Reed National Military Medical Center and her occupational medicine residency training at the Johns Hopkins School of Public Health.

Enzo Ochoa serves as the Director of Occupational Health at Inova. He joined Inova health system in 2009 and has worked with our Occupational Health Centers serving Montgomery and Arlington Counties as well as the City of Alexandria and several other jurisdictions during his time at Inova. Enzo has a BBA in Organizational Behavior and Human Resource Management from the University of North Texas.

Vasudha Joshi, MD, has been seeing occupational health patients since 1998. She served as the medical director of Inova Urgent Care Center – Vienna and now sees patients at Inova Occupational Health Center – Alexandria. 

Dr. Joshi has extensive experience and knowledge working with numerous county agencies and private companies in Northern Virginia. She is very familiar with requirements of these numerous companies and is excellent in communicating with her patients and their employers. Her experience includes physical exams for firefighters as well as police and sheriff's departments and other environmental agencies that do HAZMAT work. She also provides care to injured workers and performs fitness for duty examinations.

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Phong Nguyen, MD, is our provider for the Inova - PWC Occupational Health Clinic. Dr. Nguyen has worked in the field of occupational medicine since 1995 and has worked as an occupational health physician for Inova since 2012. Dr. Nguyen has performed physical examinations on Fire and Police personnel for Loudoun, Prince William, Arlington, the City of Alexandria, Metropolitan Washington Airports Authority, and the FBI. He is a certified Medical Review Officer (MRO).

Prior to joining Inova, he worked at the Little River Medical Clinic, where he was the Associate Medical Director. His responsibilities included being the MRO for Raytheon, Avis, TSA, and the U.S. Coast Guard, and performing examinations for Homeland Security Law Enforcement, U.S. Marshal Services, and the Pentagon Force Protection Agency.

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Marina Manarin is an account executive at Inova, responsible for bringing workplace health services to local businesses and the employees they serve. Marina works with employers and brokers to grow Inova's corporate health services across the Urgent Care and Occupational Health Centers.

Marina has extensive experience in sales and marketing within the B2B and B2C sales arenas. Marina earned her BA in Communications from the University of Delaware. She loves to travel and was fortunate enough to live in Russia, Austria and Italy during her early years.

Jessica Masten joined our Ashburn Team in December of 2020 as an Operations Manager and provides administrative support to facilitate smooth operation of the clinic and patient flow. Prior to moving to the Ashburn location, Jessica was the business and operations manager for Inova's Prince William County public safety employee clinic for seven years. Jessica obtained her bachelor of science degree in psychology from George Mason University. She has more than 14 years of experience working in the healthcare industry.

Samuel Rezenom joined Inova Health System in 2005. Sam has enjoyed his work with Inova’s occupational health clinic in Alexandria and has grown with the team and clients ever since. Sam has served in various clinical roles with the program prior to becoming the Operations Manager in 2022. Sam has worked in the healthcare industry for more than 20 years and has served Arlington County, the City of Alexandria, the Metropolitan Washington Airports Authority, the U.S. Capitol Police, the U.S. Supreme Court Police and several federal agencies during his tenure, becoming quite familiar with public safety personnel and their needs.

Nigel Walker, MHA, joined the Manassas team in December 2020 as Operations Manager after being a part of the Inova VIP 360° and Inova Orthopedics teams. In Manassas, he works closely with Prince William County’s Department of Public Safety to ensure the health of their employees. He has more than 14 years of healthcare experience, including over a decade with Inova. Nigel obtained his Bachelor of Arts degree in Communications and his Masters of Health Administration in Health Systems Management from George Mason University.

Pat Quarti, RN, BSN, serves as Inova's Occupational Health Nurse Consultant and assists in overseeing the clinical operations of our centers as well as special projects that impact center-wide operations. While she has been with Inova for more than 14 years, she also has extensive experience both domestically and internationally, not only in occupational health, but also in emergency care and intensive care. She plays an important role in fit-for-duty examinations and maintaining clinical excellence in our clinics.