STAFFMeet the Team

Our Staff

Learn more about our team.


Kathleen Biederman

Kathleen comes to our practice from Houston, TX, where she enjoyed working in primary care and functional medicine. In this role, she successfully guided patients toward optimizing their health and getting off pharmaceutical medications through treating the root causes of their disease or symptoms. She follows the philosophy that successful aging often requires a deeper assessment of how various body systems are functioning. Low nutrient levels, low hormone levels, environmental toxin burden are examples of common factors that gradually interrupt the body’s natural repair functions, and are valid considerations in modern healthcare. Kathleen has a passion for helping patients improve their health and she is looking forward to contributing her expertise within the perspective of chronic pain. She has also worked in neurosurgery, vascular surgery, and rheumatology specialties. She completed her Nurse Practitioner training at the University of Texas Health Science Center in Houston.


Caleb Greer

Caleb started his graduate educational journey at Parker University in Dallas, TX, where he accrued more than 2,000 hours studying and learning manual manipulation techniques. It was during this time that Caleb became immersed in clinical neuroscience and functional medicine. Despite the fondness of physical medicine, after acknowledging the limitations in the chiropractic scope Caleb decided to pursue a different track to become a nurse practitioner. He graduated with his Bachelor’s degree in nursing from The University of Texas at Arlington and Master's degree in nursing for family nurse practitioner (FNP) at Morningside College in Iowa. Caleb has now helped hundreds of individuals across the lifespan reintroduce and optimize function through a multidisciplinary approach that integrates neurology, psychology, epigenetics, nutrition, biomechanics, and medicine.

Outside of the clinic, Caleb spends most of his time with his wife, Shyann, and son, Knox. His primary hobbies are research, practicing the piano, muay thai or engaging in other physical activity.

Medical Assistant

Jade Teetsel

Jade is the newest addition to Precision Regenerative and Functional Medicine. She is a medical assistant, and is excited to be working in the lab and procedure room. Jade is originally from Los Angeles, California, and moved to Austin to attend The University of Texas at Austin. She recently graduated from UT Austin with a BSA in Biology and a Business Foundations Certificate. She plans to continue her career in the medical field.

Lead Medical Assistant

Brenna Bassano

Brenna is a medical assistant with PRFM, and has worked here since 2011. She prides herself in working directly with patients while helping them with any questions they may have with upcoming appointments, procedures, medication issues, or general information about their treatment. She enjoys building relationships with patients, and encourages their progress through the many different treatment options offered here. She can always be reached through email at, or on the phone directly during clinic hours.

When not at work, Brenna enjoys spending time outdoors with her husband, and two dogs. She enjoys traveling to new places, and soaking up the Texas sun while listening to live music.

Office Manager

Kelly Hilton

Kelly lives in southwest Austin with her husband, two children, and one dog. She moved to Austin from northeast Ohio in 2000. She has been the office and billing manager at Precision Consultants since 2007. During her time here, Kelly has seen many advancements in the medical treatments and techniques our office provides. Although her daily duties are completely administrative, she enjoys her interaction with patients and helping them overcome logistical and financial obstacles to get the treatment they need. If you have any questions regarding your insurance coverage, cost of treatments or scheduling a new patient appointment, please feel free to contact Kelly directly.

Medical Records

Margareta Dumitrescu

Margareta was born and raised in Bucharest, Romania. She attended the Bucharest University where she obtained a Master’s Degree in Biology. She had post-graduate education in abdominal and obstetric and gynaecological ultrasound, and she had a career in diagnostic ultrasound and nuclear medicine. She has lived in the United States since 2005 and has found a new interest in Regenerative Medicine. She helps us with our platelet-rich plasma and stem cells isolation and concentration techniques and with whatever else we ask of her (!).