Sirona Physical Therapy Staff

Michelle Miller PT, DPT, PT, DPT, COMT

Dr. Michelle Miller joined Sirona in 2010. She earned her Masters of Science in Physical Therapy from Regis University and her Bachelor of Science in Exercise Science from the University of Puget Sound. In 2005 Michelle completed a post-graduate certification in manual therapy from the International Academy of Orthopedic Medicine. Additionally, she is certified as an instructor by the Aquatic Exercise Association.

Michelle has extensive experience in orthopedic physical therapy. She enjoys treating patients across the age and activity spectrum, and having the opportunity to educate and empower patients on their path to recovery and wellness. Michelle utilizes her manual skills and exercise background to design and implement physical therapy programs specific to each patient to help them to achieve, and perhaps exceed, their goals in a timely manor.

Outside her passion for physical therapy, Michelle enjoys snowboarding, running, camping, participating with a MOPS group, and keeping up with her husband and two active children.


Larissa Ellis, PT, DPT,

Dr. Larissa Ellis joined Sirona Physical Therapy in June 2015. She has been practicing orthopedic physical therapy in Colorado since earning her Doctorate in Physical Therapy from Regis University in 2009. Prior to that, she graduated from the University of Denver with a degree in Biology and minor in Spanish.
She enjoys treating a variety of orthopedic conditions with an emphasis on evidence based manual therapy techniques, coupled with specific therapeutic exercise, functional movement training and patient education to ensure long term success. Larissa also enjoys treating vestibular dysfunction which includes dizziness, vertigo and balance deficits. She is fluent in Spanish and enjoys utilizing this skill with individuals whose primary language is Spanish.
Larissa has completed numerous continuing education courses and is certified in Trigger Point Dry Needling (TPDN) and Selective Functional Movement Assessment (SFMA). In 2011 she became an Orthopedic Certified Specialist (OCS).
Having been born and raised in Colorado, Larissa enjoys everything the outdoors have to offer, including mountain biking, skiing and camping. She lives in Lakewood with her husband Ryan, son Sam, daughter Claire and her dog, Dixie.

Annessa Kohlhardt, PT, DPT,

Annessa joined the staff of Waldron’s Peak Physical Therapy and Sirona Physical Therapy in 2019. Her passion is getting people back to what means the most to them. She believes everyone has their own unique story and needs a customized, quality plan of care to meet that story.

She received her Doctor of Physical Therapy Degree from Colorado University at the Anschutz Medical Campus in 2017. She graduated cum laude from Colorado State University with a Bachelors of Science in Health and Exercise Sciences with a concentration in sports medicine and a Bachelors of Art with a focus in dance. She has been dancing since the age of three; has performed professionally in Chicago, Las Vegas, and Colorado; coached competitive dance teams; taught and choreographed various styles of dance; and received her Level One Pedagogical Training in the Vagonova Ballet Technique. She received her certification as a Functional Range Conditioning Specialist in 2018, and has received additional training in clinical neurodynamics, vestibular rehabilitation, and more. She is experienced both in inpatient and outpatient rehabilitation, using dry and aquatic techniques on a variety of conditions including chronic pain, musculoskeletal conditions, neurological disorders, dizziness, sports injuries, and more.

As a Coloradoan, Annessa is passionate about mountain sports and other forms of movement, and brings this passion to her practice as a physical therapist. Outside of work you can find Annessa spending time with her family and friends and enjoying the outdoors. She loves to explore new movements and activities including archery, ax throwing, swing dance, and is always open to trying new things.

Audrey Waldron, PT, DPT,

Dr. Waldron has owned and operated Waldron’s Peak Physical Therapy (WPPT) in Boulder since 2002 and acquired Sirona Physical Therapy in Golden in 2012. She has been practicing physical therapy since 1990 and has chosen to be in private practice in order to provide exceptional, quality care treatment that incorporates evidence based practice in conjunction with years of personal experience.  She believes that each individual should have access to a health care provider that will listen and jointly formulate a plan of care specific for their needs.  She has developed a reputation for serving as a primary care provider for individuals with musculoskeletal conditions and works closely with physicians to ensure that an individual is receiving the most comprehensive care possible to maintain their PEAK performance.

Audrey continuously strives to enhance her clinical skills by attending a wide variety of clinical education courses in orthopedics, manual therapy, Trigger Point Dry Needling and fitting individuals for orthotics, to name a few.  Over the past 20 years she has taken close to 100 continuing education courses and  completed her Doctoral degree in Physical Therapy at the University of Colorado Health Sciences Center in Denver in May 2013.

In addition to her clinical success, she is professionally active in the Colorado American Physical Therapy Association (APTA) and the Private Practice Section of the APTA. She served as President of the Colorado APTA for 4 years, Chief Delegate for 4 years and served on the board of Directors for 20+ years.  She has served on and chaired numerous committees on both a statewide and national level and has testified regarding numerous pieces of legislation affecting the physical therapy profession in Colorado.

Audrey enjoys mentoring young professionals and assists in the physical therapy Doctoral programs at both the University of Colorado and Regis University.  She was awarded the Colorado Outstanding Physical Therapist Award in 2001, Outstanding Alumnae from Rutgers University in 2004, and The Cerasoli Educator Award for Outstanding contributions to the education of student physical therapists in 2008 from the University of Colorado Physical Therapy Program.

In her spare time she enjoys running, hiking, gardening, cooking, cross country skiing, snowshoeing & biking.