Sheila Floyd

Office Administrator

Sheila Sheila joined Robinson Concierge Medicine in August 2013 as the Office Administrator for the practice. Sheila is responsible for oversight of all front and back office operations (Administrative, HR, and Bookkeeping).Sheila is passionate about all areas of Health, Nutrition and Wellness since her daughter has personally struggled for 20 years with GI issues that were inaccurately diagnosed until they realized food was the primary problem. “She hopes to bring value to the practice and sincerity and warmth to the patients we serve.”

Sheila previously worked with the Army and Air Force exchange service in various capacities and served in the corporate world in both healthcare business and financial analyst positions and system project manager capacities for 20 years. She subsequently, worked along- side her spouse as a business owner for 10 years. During those same 10 years, while in ministry, they have worked with individuals suffering from an array of addictions. She and her husband believe a positive lifestyle is the key to healthy living.

In the most recent years she received Florida Life & Health including Variable Annuity Licensure. She brings Hospital ER, OR, OP, IP, and Behavioral Health scheduling experience with her in assisting our patients by coordinating procedures with referring physicians. Sheila and her husband relocated to St. Pete Beach in 2011 from southern Indiana. They have 3 Adult children, a grandson and two granddaughters. She is looking forward to pouring into the lives of her grandchildren, as they grow, as she did her own.

Sheila’s top tips for staying healthy:

  • Listen to your body! It will tell you what it needs or doesn’t need…..Get plenty of Rest
  • Don’t allow more than 3 stressful items into your life space at any one time, and do not allow bitterness or unforgiveness to consume you. It will only impact you, not the other person.
  • Love life and someone else!

Sierra Watson

Medical Services Coordinator

SierraSierra joined the practice in May 2014. Sierra has been instrumental in every area of service in the practice while Dr. Robinson’s Medical Assistant (EKG’S, injections, BHRT procedures, Body Composition Analysis Testing, Vitals, Specialized Testing and Lab Result Documentation for your follow-up appointments).  She has coordinated referrals and maintained patient education material and ensured that you understood your plan of care.  She made sure your arrival and check-out process was handled seamlessly upon arrival through coordination of future appointments or needs.

Sierra now works remotely and is the New Patient Liaison for all those interested in the practice and those joining the practice.  She also is the primary contact for all Xymogen MedPaX supplement orders.  You may also find her reaching out to you for those missed appointments as we encourage you to keep your visits current and your body healthy!

She comes to us with experience beyond her years. Sierra exhibits commitment and is not a stranger to wearing many hats. She has worked as a personal and administrative assistant for both a small business owner as well as a national real estate brokerage firm. She spent many years leading customer service training while working on her Real Estate Certification which she completed in 2013, before relocating to Florida.

An interesting fact about Sierra is that she has a daughter, born in September 2017, and is enjoying her role as “Mom”. She is also a licensed model in Indiana, Kentucky, Ohio and Tennessee and has print ads to her credit. She became involved with the modeling industry in order to be a positive role model to young girls.

Sierra is very passionate about helping others to be whole in mind, body and spirit. She believes that Dr. Robinson’s heart and practice model promotes that lifestyle.

Sierra’s top tips for staying healthy:

  • Minimize stress as much as possible. You must take time for yourself – for your mental health.
  • Be mindful of the foods you consume and get plenty of rest – for your physical health.
  • Always make time to focus on your spiritual health.

Donna Ganz

Bookkeeping/Back Office

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Donna joined Robinson MD in April 2016. Her primary focus is accounts receivable billing/bookkeeping. Donna is also responsible for the purchasing of office supplies, supplement inventory and many other back-office administrative duties. Donna is originally from New York and has lived in St. Petersburg since 1996. Donna has a variety of business experience including 10+ years of hospital insurance billing experience and operations at assisted living facilities.  She then shifted to the law enforcement arena as a youth center technician at Lealman Connection Center. She also worked in a variety of positions managing records and reports for the Pinellas County Sheriff’s office. She “officially” retired in 2012 but enjoys staying professionally active. Most recently Donna was an Assistant Bookkeeper for an Ophthalmology office before she joined Robinson MD.Donna says she can relate to weight management challenges. She connected to us through our personal trainer and health coach while she was working towards making positive lifestyle changes through exercise and a healthy diet. Donna loves to travel, knit and crochet.

Donna’s top tips for staying healthy:

  • “Eat your Vegetables.”
  • “Get your Exercise.”
  • “Don’t Beat Yourself Up.”

Becky Pruna

Medical Assistant

Becky joined Robinson MD in September 2016 and is Dr. Robinson’s Medical Assistant. She will take your vital signs upon arrival for your appointment, administer injections, perform Body Composition Analysis and EKG’s. She will also be assisting with BHRT procedures.

Becky has come to us with over 10 years of experience as a medical assistant in the Alternative/Holistic Medicine field, specializing in Bio-identical Hormones and Nutritional IV Therapy. She graduated in 2006 and was hired right out of her externship with Capstone Medical in Pennsylvania. She was the head MA and worked closely with the RN to learn how to do IV’s and ran their IV clinic after the RN left. She did EKG’S and Spirometry, and did patient intake and vitals. She also did prior authorization for submission to insurance companies and scheduled patient’s follow-up appointments and scheduled tests. She became certified in Thermography in 2010 and did the Thermal Imaging for the practice, as well as Body Contouring. Becky believes the Robinson’s philosophy is the same as hers and looks forward to growing with the team!

Becky moved to Florida with her husband and 3 children in March 2016. She would come down to visit family a lot through the years and decided to make it permanent. She enjoys spending time surrounded by her family and friends. They are always looking for new places to explore and love being out on the water or on shore with their feet buried in the sand.

Becky’s top tips for staying healthy:

  • “Life is too short, smile more, appreciate what you have and be happy, take time to stop and smell the roses and take in your surroundings.”
  • “Practice random acts of kindness, you never know who is in need of a blessing.”
  • “Be child-like. When it comes to certain things, children do them way better than we do.”

Brandie Gonzales

Records Retention Specialist

Brandie joined Robinson MD in February 2017 to support front office operations.

Brandie now works remotely and is responsible for much needed online records retention, data entry of accounts payable, patient surveys, and continued assistance of back-office administrative tasks.  She is always available to help as needed should you reach out and connect with her.

She is from Monessen, Pennsylvania, has settled locally to Florida, but not before moving all around the states as a child and pre-teen.   Since Brandie is well versed on travel already, her bucket list priority is to visit new and faraway places as often as possible with her family.

Brandie is very artistic.  Her hobbies include reading, writing, drawing, photography, cosmetology, and binge watching her favorite Netflix shows.


  • Drink water, every day!
  • Eat organic foods and use natural remedies.
  • Be generous to your mind, soul, body, and spirit.

David Robinson


Dr. Robinson joined the practice in the fall of 2014. After practicing Anesthesia and Pain Management for over 20 years, Dr. Robinson was drawn to alternative ways to treat and prevent the problems that he consistently saw while practicing medicine. He saw value in offering:

  • IV Nutritional Therapy: An effective route of giving IV nutrients for specific medical conditions and nutritional deficiencies.
  • Bio-Identical Hormone Therapy (BHRT) including pellet placement: Implantable hormone pellets used to treat symptoms of hormone imbalance in men and women.

Dr. Robinson was born in Harlingen, Texas but grew up primarily in the Washington D.C. area. Growing up in a military family, he moved many times throughout his childhood, living in Texas, California, Puerto Rico, Ohio, New York, Virginia, Utah, and Maryland. He served with the Merchant Marines, sailing halfway around the world over a period of 2 years. Following the Merchant Marines, he owned a small business and then decided to pursue a career in the medical field.

He initially received a degree in Respiratory Therapy and worked at various hospitals in the Tampa Bay Area while completing his bachelor’s degree at University of South Florida. He then went on to study medicine at Tulane University School of Medicine and completed his residency in Anesthesiology and a fellowship in Pain Management at University of California at Davis.

Dr. Robinson lives with his family in St Pete Beach and enjoys travel, fishing, spearfishing and scuba diving.

Board Certified

  • Anesthesiology
  • Institute for Functional Medicine (In Process of Certification)


  • University of California at Davis, Sacramento, CA – Pain Management Fellowship 1999
  • Residency in Anesthesiology – Tulane University School of Medicine/University of CA at Davis 1997
  • Tulane University School of Medicine, New Orleans, LA – 1993
  • University of South Florida, Tampa, FL – B.S. Degree – Biology 1988
  • Manatee Community College, Bradenton, FL – A.S. Degree – Respiratory Therapy 1984

Additional Training

  • IV Nutritional Therapy
  • Bio-Identical Hormone Replacement Therapy including Pellet Placement

Stacia Diaz

Office Clerk

ReAnna Mohamed