All professionals at Valley of The Sun Institute for Pain Management maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

About Dr. Farrell

Estelle Farrell, D.O.

Dr Estelle Farrell is an Board Certified Osteopathic Physical Medicine and Rehabilitation Specialist. She is Board Certified in Pain Management. She has extensive training and expertise in Regenerative Medicine Procedures. Dr Farrell is a Clinical Associate Professor at Midwestern University.

Dr. Farrell Modifies her care to the needs of her patients. Many times, Understanding the Cause of a problem leads to a way to treat it. In using a Functional Medicine approach with integrative and traditional care, She is significantly focused on Helping Patients Find their Path to Better Function and Living.

As Arizona's first Female Osteopathic Physiatrist (FiZZ-eye-At-Rist), She has been practicing for over 23 years in the Valley of The Sun.

Her Training includes:

Dr. Estelle Farrell has been the Past President for the American Osteopathic College of Physical Medicine and Rehabilitation and The Arizona Society for Physical Medicine and Rehabilitation. She continues to politically advocate for patient care.

Hands on Care for those in Need is a Basic Principal. During these trying Days, she is available by Telemedicine to help guide patients to paths that may be open to use at this time. As you look through the Website, you will find many fascinating tools and information to help you develop and share your own goals and work towards them. Many Blessings.

Dr Farrell treats patients in the following areas:

  • Pain Management
  • General Rehabilitation
  • Sports Medicine
  • Workmen's Compensation
  • Personal Injury
  • Trauma
  • Neck Pain
  • Back Pain
  • Fibromyalgia
  • Neuropathy
  • Pelvic Pain
  • Abdominal Pain
  • Chronic/Acute Medication Management
  • EMG/Electrodiagnostics
  • Acupuncture for Pain and Neuropathy Issues
  • Homeopathy and Natural Approaches

Our Locations

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Hours of Operation

Our Regular Schedule

Valley of The Sun Institute for Pain Management


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm






What Our Clients Say About Us

  • "I have been seeing Dr. Farrell for about 1 year, my case is different than most patients. I have been to many different doctors along the way, and I can say that Dr. Farrell has helped me more than anyone before her. I am in constant pain, and I feel through time and patience, she has figured out a stream of medications thru pain management that helps me function day to day. Everyone in the office is very nice, helpful and overall office visits are pleasant."
    Robert C. - Tempe, AZ
  • "I have been to many doctors before coming to Dr. Farrell. I was suffering with pain for months. Dr Farrell monitors me and makes sure to follow up on any changes. I believe she can help anyone if they want it. She listens and she cares. Emotionally and physically she is and will continue to be my doctor and I trust her totally. Her office staff will help you with your Insurance and will do everything they can to help you get into either of her offices, she wouldn’t have it any other way."
    Diane A. - Mesa, AZ