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MEET THE TEAM



Soheil Sean Younai, M.D., FACS, QME

President & C.E.O: Dr. S. Sean Younai is a Board Certified Reconstructive/Hand Surgeon who has been treating work comp injuries for municipalities of Los Angeles and Ventura counties since 1999. As a Qualified Medical Examiner (QME) he is routinely requested by large employers and insurance companies to give expert medical and legal opinion in complicated workers compensation claims.


Natasha Madarian, MBA, COO

Natasha is the Chief Operating Officer of ProHealth Medical Group. She is well respected by the staff and our clients for her hands on approach and availability. Natasha’s top priority is to ensure that injured employees are cared for in a complete and efficient way. It is her belief that the foundation of a great occupational medical clinic should include exceptional medical care along with excellent customer service, and an open line of communication with the employer. She has been an active member of her community and a Board Member of the Valley Economic Alliance since 2012, thus embracing projects and supporting businesses in Southern California communities.


J.R. Carrera, Director of Operations

J.R. Carrera brings over 20 years of healthcare management and business development experience to Central Valley Occupational Medical Group, Inc. (CVO). Under his current capacity as Director of Operations for CVO, Carrera oversees the operational and strategic planning of CVO in Bakersfield and Delano. He has built numerous business relationships with Kern County employers and maintains a level of professionalism that has led him to be successful in the area of business development. Carrera believes that maintaining a good line of communication with the injured worker, employer and insurance carrier leads to a successful medical outcome. Carrera says his leadership skills are attributed to his time served in the U.S. Army (Veteran), and the business associates he has known over the years.


Jeffery Freesemann, M.D.

Dr. Freesemann is a Medical Associate at Central Valley Occupational Medical Group, Inc. (CVO) who brings over 7 years of Occupational Medicine experience to CVO. And his primary duties include the treatment of occupational injuries/illnesses, pre-employment physicals, substance abuse screening. Freesemann received his Doctor of Medicine degree from the Georgetown University School of Medicine. He received his residency training at Oregon Health Sciences University. Freesemann is the previous president of the Kern County Medical Society as well as the previous Chief of Staff at San Joaquin Community Hospital.


Richard Sall, M.D.

Richard Sall is a Medical Associate at Central Valley Occupational Medical Group, Inc. (CVO) who brings over 36 years of Occupational Medicine experience to CVO. His primary duties include the treatment of occupational injuries/illnesses, pre-employment physicals, substance abuse screening, disability evaluations, and P&S Evaluations. Sall received his Doctor of Medicine degree from Wayne State University Medical School in Detroit, Michigan. Conducted his residency training in General Surgery at St. John Hospital. He received his residency training in General Surgery at St. John’s Hospital. Dr. Sall also received his Board Certification in Occupational Medicine at the Medical College of Wisconsin.


Michael Riley, Physicians Assistant (PA)

Michael assists the medical staff with the evaluation and treatment of injured workers as they present in the clinic. He performs pre-employment physicals, period health and screening exams, as well as department of transportation exams. Riley brings over 14 years of occupational medicine experience to CVO. He earned his Bachelors of Science Degree in Health Management and his Physician's Assistant Certification at Charles Drew University.


Steve Barnum, Family Nurse Practitioner (FNP)

Steve Barnum assists the medical staff with the evaluation and treatment of injured workers as they present in the clinic. He also performs pre-employment physicals, periodic health & screening exams, and department of transportation exams. Steve brings over 10 years Occupational Medicine experience to CVO. He earned his Master of Science in Nursing, Family Nurse Practitioner at UCLA and his Bachelor of Science in Nursing at the University of Phoenix. Steve brings extensive experience in Rehabilitation Medicine by way of his previous employment with HealthSouth Bakersfield Rehabilitation Hospital.


Kent Simmons, Family Nurse Practitioner (FNP)

Kent Simmons assists the medical staff with the evaluation and treatment of injured workers as they present in the clinic. He also performs pre-employment physicals, periodic health & screening exams, and department of transportation exams. Simmons brings over 17 years of Occupational Medicine experience to CVO. He earned his Masters Degree in Nursing & Family Nurse Practitioner at the University of California, Los Angeles, Los Angeles. Attended and earned his Bachelors Degree in Nursing at Walla Walla College. Prior to working in Occupational Medicine, Kent spent many years in the Emergency Room medicine at San Joaquin Hospital as an ER supervisor.


Jackie Tinoco , Director of Marketing

Jackie Tinoco brings over 14 years of Occupational Medicine experience. A good number of these years have been spent supervising Front Office staff and overseeing client services. Jackie's current position is Director of Business Development and Client Services. Her ability to connect with employers makes her a valuable asset to CVO. She also oversees CVO's Transitional Work Assignments for various employers in Kern County. Jackie's motto is smile and always treat everyone with respect. This philosophy has earned her the highest praise by fellow employees and employers alike.