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Our Staff

Meet our incredible staff

When it comes to your spinal health, we know only the finest will do. That’s why we only hire the best, most experienced family medical experts, chiropractors, massage therapists, and physical therapy professionals in the Tampa area. With Swann Medical, it’s no longer necessary to go around Googling “spinal health experts near me.” We offer all of the spinal health services you’ll need, in one convenient location! Learn more about our wonderful Swann Medical team below and contact us to set up your next visit now.


Dr. Jack Tseng, DO

Dr. Tseng is board certified in Family Medicine. He is a graduate from Touro University, California and completed his Family Medicine residency at St. Petersburg General Hospital. Dr. Tseng also serves on the board of the Hillsborough County Osteopathic Medical Society.

At Swann Medical, he is responsible for EMC evaluations for auto injury patients, regenerative medicine, sports medicine, medical weight loss and aesthetics.

During his free time he enjoys biking, kayaking, and traveling both near and abroad.

Dr. O’Hara McKenna D.C.

Dr. McKenna graduated from Florida State University and Life University and, most recently, spent 10 years at Treating Physician at physical medicine/multi-disciplinary facilities in Atlanta, Georgia.

As Swann’s Marketing Director, she organizes educational seminars and community outreach.

Dr. David McKenna D.C.

Dr. McKenna graduated from Xavier University Louisiana and Life University and, most recently, spent 10 years as Director and Treating Physician at physical medicine/multi-disciplinary facilities in Dunwoody, Georgia. As Swann’s Director, he integrates his experience and judgment into the planning and implementation of all of our physical medicine programs.

Brenda I. Hudas, CCPA

As Swann Medical’s Office Manager, Brenda is responsible for overseeing the daily office operations. She completed her chiropractic assistant certification from Parker College of Chiropractic in 1998. Brenda is currently a licensed Certified Chiropractic Physician’s Assistant. Her many years of experience have given her extensive knowledge in all aspects of the chiropractic office including auto injury. Brenda is fluent in Spanish and therefore is available to assist in any capacity to translate when needed. In her spare time, Brenda enjoys spending time with her family, attending concerts and visiting any of the Disney parks.

Jennifer Powell, LMT

Jennifer received her Florida state board license and certification in Massage Therapy in 2004 and received her A.S. Degree from Daytona State in 2017. She specializes in both medical massage and spa body treatments. Along with 14 years of continued education in both fields, she has worked as a lead spa and medical therapist helping patients to feel and look their best. In Jennifer’s spare time, she works to complete her BSN degree and loves taking trips to the beach.

Leah Rodriguez

Leah graduated from St. Petersburg College in 2005 with a bachelor’s degree in Health Services Administration. Leah is responsible for all of the therapy treatments for patients as well as doing new patient intake and assisting the front desk. Leah has worked in the medical field for over 10 years prior to having her 2 beautiful boys, ages 3 and 6. Leah loves animals, sushi, the beach and spending time with her boys.

Brianna Contreras

Brianna is pursuing her bachelors degree at the University of Central Florida and will graduate in May of 2019. As Swann Medical, Brianna is waiting to greet you and strives to make each patient feel comfortable and welcomed. As a registered chiropractic assistant, you will occasionally find her assisting our therapists with patients in the back office. Brianna is warm, caring and is a diligent part of our team.

Alex Logan

Canadian born and raised, after earning her Recreation and Leisure degree Alex moved to Tampa to get her Bachelor of Science in Exercise Science with a teaching degree. Alex sticks to her roots and is a huge hockey/Tampa Bay Lightning fan. She also plays softball, golf and volleyball and loves anything to do with being on or by the water.