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About Us

At Health & Human Performance in Woodland Hills, CA, Dr. Cobey and her staff of musculoskeletal experts are armed with knowledge, experience, and additional certifications in sports medicine, rehabilitation, and lifestyle wellness.

Patients who choose to receive treatment with our amazing staff will receive quality care to help them reach their optimal health. Learn more about our team below.
Be Amazing!

Dr. Tanya Cobey
Dr. Tanya Cobey D.C. CCSP


Meet Dr. Tanya Cobey, an esteemed chiropractor with an impressive background in the field of healthcare. She earned her doctorate from Cleveland Chiropractic College Los Angeles and holds a Bachelor of Science degree in Human Biology.

She has pursued advanced training in sports injury and corrective care, earning her certification as a Chiropractic Sports Physician, C.C.S.P. She specializes in a range of techniques including manual adjustments and mobilization, Graston Technique®, Kinesio-taping®, and Functional and Kinetic Treatment with Rehab (FAKTR®). Her expertise has led her to actively participate in various sporting events such as the Conejo Valley Triathlon, the Drew Brees Celebrity Golf Tournament, and the Regional Cross Fit Games in San Diego, CA.

Dr. Cobey offers a wide range of professional services tailored to address neuromusculoskeletal dysfunction. Her approach includes chiropractic treatments, functional assessments, physical rehabilitation, orthopedic and neurological examinations, diagnostic procedures, soft tissue therapy, strength training, and exercise rehabilitation.

As a dedicated professional, Dr. Cobey maintains memberships in prestigious organizations such as the California Chiropractic Association, American Chiropractic Association, and the American Chiropractic Board of Sports Physicians. Her commitment to excellence ensures that you receive exceptional care and support throughout your wellness journey.

Click Here to read her interview in Shoutout LA.

About Massage Therapists


Tom is a highly skilled massage therapist who graduated from the Advanced School of Massage Therapy in 2002. With a lifelong athletic background, he understands the benefits of massage therapy for recovery and injury healing. Tom stays up to date with continuing education courses in massage and manual therapy, specializing in techniques such as sports massage, deep tissue massage, and therapeutic cupping.

His goal is to help clients improve body awareness and focus on recovery. Tom has extensive experience working with clients of all ages and backgrounds, including runners, cyclists, triathletes, and MMA fighters. In his free time, he enjoys weightlifting, hiking, cycling, Jiu-Jitsu, and boxing. Choose Tom for a deep therapeutic massage that enhances performance and aids in recovery.


Sayra has been a certified massage therapist since 2011. She graduated with 1000 hours of hands-on training and massage experience from the National Holistic Institute and with Physical Therapy Aide training from Southern California Health Institute.
Sayra chose Massage Therapy as her profession because she finds working one-on-one with each client very fulfilling and rewarding. She has a kind-hearted nature and is passionate about helping her clients heal.
With years of experience in Chiropractic and Pain Management, she is well-equipped! Her areas of expertise are:
  • Lymphatic
  • Sports
  • Deep Tissue
  • Pre/Post Natal
  • Swedish
  • Myofascial Release
  • Trigger Point Therapy
  • Injury Rehabilitation
  • Kinesiology
Sayra has a background in athletics, having played soccer, and practiced hapkido, kickboxing, boxing, and Jujitsu. She understands the therapeutic needs of today’s athletes. Her education, knowledge, and experience with the treatment of basic athletic injuries aid in the evaluation and treatment of her clients.

Certified Yoga Instructor & Office Manager

Alissa is an integral part of the Health and Human Performance team, bringing over 2 decades of management experience and a background in yoga instruction since 2012. Her journey into yoga began in 2008 when she sought its benefits for stress-related shingles. Inspired by its positive impact, she obtained her 200-hour Yoga Teacher Training Certificate in India. Alissa has since taught various yoga styles, including Hatha, Restorative, Vinyasa, Limited Movement, and Prenatal yoga, both in group and private settings. She has also worked with diverse populations, including foster care youth and individuals with addiction, eating disorders, chronic pain, and dual diagnoses.

Alissa specializes in Trauma-Informed Yoga, aiding those with trauma, PTSD, and high anxiety. Since 2014, she has been helping patients at Health & Human Performance, focusing on rehabilitating injuries and promoting proactive health practices. In 2021 Alissa became a Certified Hypnotherapist and in 2024 a Clinical Hypnotherapist. She uses gentle, client guided visualization and works with the subconscious mind to clear negative core beliefs and remove blockages holding you back from your truest self. Her specialities are: Pain Management, Inner Child work, and clearing trauma.

Alissa’s belief is that by nurturing our bodies and minds, we can enjoy life to the fullest.
Yoga Therapist - Alissa Mathewson, About