meet the team

Chiropractor in Thousand Oaks CA Sevak Khodabahkshian Meet The Team


Sevak Khodabakhshian D.C.

Dr. Sevak Khodabakhshian, a local chiropractor at Omega Rehab & Sport, caring for the community of Thousand Oaks and cities of the surrounding Conejo Valley, graduated from Palmer College of Chiropractic West in San Jose, CA in March of 2001 at the top of his class with both academic (Cum Laude) and clinical honors (Clinical Excellence Award).

Dr. Khodabakhshian (Dr. K) has extensive experience in both fitness training (National Academy of Sports Medicine certified personal trainer) and rehabilitation of athletic injuries and non-athletic injuries alike.

He is the co-founder of Omega Sport & Rehab (established in 2004) a company developed to meet the demand for comprehensive physical rehabilitation and enhancement of human performance through an active care model utilizing both physical therapists and chiropractors.

He as worked extensively with professional organizations to develop back safety programs and lectures regularly on injury prevention. To this end, Dr. Sevak writes a bi-monthly health column for the Ventura County Star titled “To Your Health” dedicated to proactive health education. Municipalities and companies he has worked with include the City of San Jose Fire and Police Departments, Conejo Valley Unified School District, Simi Valley Unified School District, Rio School District, Amgen, and the City of Thousand Oaks among many others.

Dr. Sevak has completed more than 50 hours of post-graduate training in industrial disability evaluation and is currently a California State-appointed Qualified Medical Evaluator (Q.M.E.).

He received his Bachelor's Degree in physical anthropology from California State University Northridge in December of 1993. Dr. Sevak is an avid surfer and describes himself as a nature lover. He is married to Tyaga, with one child, and chose to settle in the Conejo Valley in 2003 for the abundant natural resources and tight-knit communities it offers. He is a Thousand Oaks Rotarian and feels strongly about community involvement through volunteer work; dedicating his efforts to youth and community services.

Chiropractor in Thousand Oaks CA Zack Fulks


Zack Fulks, D.C

Dr. Zack Fulks was born and raised in the Northern California Bay Area. Through his own athletic pursuits playing football, he found himself relying regularly on the assistance of his family chiropractor to recover from injuries and improve his performance.

It was because of this formative experience that Dr. Zack's love for chiropractic was born, fueling his passion for helping others live the best life they choose and engage in the activities they love.

He completed his undergraduate education at San Diego State University with a bachelor's in pre-physical therapy. He then returned to northern California, to attend Palmer College of Chiropractic West in San Jose.

During his time at Palmer, Dr. Zack served as the president of the Rehab 2 Performance club, directing other students on the potential use of rehabilitation in the chiropractic practice and further developing his knowledge in the field. Dr. Zack graduated as Valedictorian of his class with Summa Cum Laude honors and the academic excellence award, in 2022.

As a Chiropractor, Dr. Zack pursues wellness and health with each patient, considering all aspects of the patient's life. Using chiropractic diagnostics and techniques, with an emphasis on patient-specific at-home recommendations, Dr. Zack fosters long-term relationships with his patients and their family members.

Chiropractor in Thousand Oaks CA Anne O'Sullivan Physical Therapist Meet The Team

Lead Physical Therapist and Certified Pilates Instructor

Anne O’Sullivan, MPT

Anne has actively engaged her patient population in wellness, corrective exercises, and rehabilitation for the past 21 years. Her vast experience in the field of rehabilitation encompasses almost every aspect of rehabilitation and exercise therapy including outpatient orthopedics, inpatient rehabilitation, aquatic therapy, geriatric rehabilitation, and Pilates.

Anne started her career in physical therapy as a physical therapist assistant, with an AS from Pierce College in Woodland Hills. Years later she went back to California State University, Northridge to get her masters in physical therapy. She has completed an extensive year-long certification program in classical Pilates through the Teague institute, which included mat and all the equipment exercises, along with the principles of Pilates.

Additionally, she just completed a year-long course in orthopedics and has taken numerous courses over the years and will continue to do so, in her pursuit of learning and being the best she can be.

She has studied the Pilates discipline extensively in Southern California. Recently, she has devoted considerable personal resources to integrating her unique Pilates approach to rehabilitation to help her clients recover from injuries faster and more uniformly. She has now taken her field another step forward by introducing Pilates at Omega Rehab & Sport to our client population. She is eager to bring her vast experience and expertise to assist you in perfecting physical balance and enhancing function.

Chiropractor in Thousand Oaks CA Karen Howell Meet The Team

Billing and Collections/Office Manager

Karen Howell

Karen Howell has been Office Manager for Omega Rehab & Sport since 2004. She has 20+ years of experience in medical office management, mostly in the fields of Physical Therapy and Chiropractic services. Her knowledge also includes Insurance billing and collections. 

She is well educated on most insurance plans and works with all clients to maximize their insurance benefits to help minimize their out-of-pocket responsibilities.

Her focus is to make the entire experience with Omega Rehab & Sport about your treatment and recovery, instead of about finances.

Karen is a native Texan but has been in California since 1994. When she is away from the office, she loves spending time with family and friends, crafting, gardening as well as traveling.

If you have any questions regarding your insurance coverage, please don’t hesitate to contact our office and ask for Karen.

Chiropractor in Thousand Oaks CA Christian Cummins Meet The Team

Rehabilitation Aide

Christian Cummins

Christian Cummins is Omega's lead rehabilitation aide and lead tech for our Employment Testing Division. He has been a vital member of the Omega team for over 7 years. Christian loves spending time with his soon-to-be wife, Viviana, and likes playing video games with friends.

He is a basketball club team coach where he improves upon the skills and lives of those he is around. What people may not know about Christian is his extensive knowledge of world history and his love for comedy.

Chiropractor in Thousand Oaks CA Tyaga Hebel Meet The Team

Personal Trainer

Tyaga Hebel

From novice to pro-athlete I design a sport-specific or weight loss program depending upon your goals. You’re guaranteed to lose fat and increase muscle tone while developing core strength when you commit to a training program with me. No injury is too great and no recovery is too complete to take yourself to the next level!

By practicing functional training we work as a team to improve your quality of life by teaching you to effectively recruit supporting and stabilizing muscles and learn techniques for releasing dominant muscles. 

You deserve to experience the results of training with an experienced trainer who is committed to your success.

  • Corrective Exercise Specialist, NASM
  • Nationally Certified Personal Trainer, NASM, AFAA and NCEP
  • IntelliRoll educator
Chiropractic Thousand Oaks CA Nicole Dowell Massage Therapist Meet The Team

Certified Massage Therapist and Certified Personal Trainer

Nicole Dowell, C.M.T., N.C.P.T.

Nicole is one of our amazing massage therapists and also provides personal training at Omega. She graduated from IPSB at Life Energy Institute In 2008. Her specialties are therapeutic deep tissue, Sports massage, and Trigger Point therapy.

In 2009 she received her personal training certification from NASM as well as her Pilates instructor certification from Power Pilates.

She is also a certified ACE Health Coach. What people may not know about Nicole is that she was a professional ballroom dancer and choreographer, a professional tango dancer and a professional aerialist before pursuing her career in massage therapy and personal training.


8:00am - 6:00pm

7:30am - 6:00pm

8:00am - 6:00pm

7:30am - 6:00pm

8:00am - 6:00pm

7:30am - 12:00pm


Omega Rehab & Sport

325 Rolling Oaks Drive #250
Thousand Oaks, CA 91361

(805) 230-1199