Office Admins

Dr. Wanita Patterson DNP, APRN

Dave Russell

Dave comes to us from seven years at Community Health Systems where he directed physician practice operations, financials and physician recruiting in Florida for more than 220 clinicians and 650 associates in 63 outpatient facilities. Prior to that, Dave was COO for four years at Deuk Spine and Viera Heart & Vascular and as Executive Director of their 501(c)(3) foundation promoting clinical research and education.

He also has experience in the tech sector where he worked with ACI Worldwide for a dozen years serving as president and COO and at First Data Corp where he was in sales, call center operations and strategic planning.

Dave earned his BS and MBA at Virginia Tech and is a board certified Fellow with the American College of Healthcare Executives.

He and his artist wife enjoy the loyal companionship of their Golden Retriever and feral Siamese cat, dinner with friends and the beautiful Florida sunsets. Dave says he has given up his penchant for custom bikes and now plays a little golf and is writing his second novel.

We look forward to his contributions to Digestive & Liver Center of Florida.


Dr. Wanita Patterson DNP, APRN

Larry Wagner

BOM, Business Office Manager

Larry possess eighteen years of experiences in healthcare revenue cycle and contracting accompanied by an MBA through Belhaven and an BSBA Finance through UCF.

Compassionate care and Helping the patient.


Olga Fernandez

Olga Fernandez

Olga Fernandez has been managing communications and front line scheduling for Digestive and Liver Center of Florida since August 2018. Born in Rio Piedras, PR and raised in Lawrence, MA, then moved to Orlando, FL in 2003.

Olga has experience in leadership, call management, team building, professional development, strategic implementation, and compan collaboration. Prior to joining the practice, she managed projects with high ROI for pharmaceutical company. Trained and certified in leadership and six sigma.

In her free time she enjoys spending time with family and meeting new people.