Tracy Shulsinger, FNP-C, MSN

Board Certified Family Nurse Practitioner

Tracy is the owner of The Healing Collective Functional & Integrative Medicine. 


As a Family Nurse Practitioner (FNP), Tracy has worked with all ages of men, women & children, initially providing primary care for underserved populations in pregnancy care, women’s health, pediatrics, psychiatric, acute and chronic care, & home health. Prior to practicing as an FNP, Tracy was an RN for eight years in cardiac care, primary care, orthopedics medical/surgical, psychiatric care, women’s health, home health, and camp nursing. Tracy has also enjoyed several medical missions to Central America and has developed Spanish language fluency. 


Tracy found her true calling through Functional Medicine as she always has wanted to support clients to create deep, everlasting healing from the inside out. Functional Medicine is a new paradigm of care that seeks to find and heal the root cause of disease instead of treating the symptoms. 


Outside of work, Tracy enjoys practicing & teaching shamanic healing, spending time in nature, dancing, making pottery and spending time with her husband and daughter. 

To learn more about Tracy's Shamanic Healing practice

click here.

Dr. Jessie Tierney, PT, DPT, E-RYT

Doctor of  Physical Therapy

Jessie is a Doctor of Physical Therapy with specialized training in functional manual therapy, medical therapeutic yoga, and Frequency Specific Microcurrent (FSM). 


She empowers clients to optimize their movement patterns, get out of pain, and truly thrive in their bodies. Appointments provide clients with one-on-one, focused attention that addresses the root cause of movement dysfunction, providing hands-on interventions and education. Learn more about PT services here


Jessie loves helping individuals dealing with chronic or unresolved pain as well as those who are looking to optimize the way they move through life. Our bodies are meant to feel great, and Jessie offers an integrative approach to unveiling her clients' innate wholeness. She draws from over ten years of yoga teaching experience and over seven years in the physical therapy field with an intense passion for continuing education. She graduated from Wheeling Jesuit University’s Doctor of Physical Therapy program in 2018, where she conducted research on the effects of yogic breathing on chronic low back pain. She is an Experienced-Registered Yoga instructor certified through the ShambhavAnanda School of Yoga since 2010.  


When she’s not in the clinic, Jessie can be found exploring the trails on horseback, on foot, or by snowshoe, meditating, and practicing or teaching yoga.

To learn more about Jessie's Yoga practice, click here.

Gae Russo,
Office Coordinator

Gae has always been passionate about nutrition and fitness. She spent many years working in a physical therapy office and an athletic club where she learned the latest and greatest information on health.


Gae's journey into alternative medicine began a few years ago when she was diagnosed with an autoimmune disease. She was surprised when she became ill because she had faithfully followed all the advice from the experts. Traditional doctors tried to help, but finally said there was nothing more they could do. This is when she discovered Functional Medicine and all that it had to offer. It has turned her life around!

As the Director of Operations at the Healing Collective, Gae strives to create a positive, nurturing, and happy environment. She will answer your questions about the practice, help you set up appointments, and promote efficiency in the office to respect you and your time.   

When she's not at the office, Gae enjoys playing African drums and practicing Tai Chi. 

Margaret Sutherland,

Medical Assistant & Phlebotomist

Originally from Canada, Margaret has been living in Boulder since 2012.  She is a Certified Medical Assistant and phlebotomist with a background in internal medicine.  In Canada, Margaret earned a BSc in Nutrition and Food Science, practicing as a clinical dietician in Calgary and later in Bermuda.


Margaret has always believed in a multi-pronged approach to health as a lifestyle. Wellness via exercise is certainly important to her, and she also values the effects of mental stimulation and stress reduction on overall health. She values balance and variety as the spice of life!


She brings our all-new blood draw lab service to the Healing Collective, coordinates lab tests and helps the front desk run smoothly. 

Margaret enjoys running and has completed 16 marathons (so far ...)!  She also likes to spend time hiking in the mountains with her husband, two boys, and her dog, Kirby.

Contact Us


6800 North 79th Street, Suite 202

Niwot, CO 80503


Monday - Friday 9am - 5pm

*Closed from 12pm - 1pm every day for lunch. 

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CALL US: 720-572-5236

FAX: 720-684-6913