Who we are

  • We are a comprehensive clinic that will guide you through all stages of the healing and recovery process.
  • Our chiropractors utilize advanced soft tissue treatments such as Active Release TechniqueGraston Technique, and Kinesio Taping, as well as traditional chiropractic care and nutritional supplementation.
  • All our massage therapists are licensed Chiropractic Assistants, allowing us to incorporate massage into your chiropractic treatment plan.
  • We work with all Major Insurances, and are experienced with Motor Vehicle Accident and Worker’s Compensation injuries.

Hawthorne Chiropractic and Healing Arts is deeply committed to sustainability and care of our local environment. We have achieved a Gold LEEDS Certification.

Here are a few examples of ways that we show we care:

  • Mass transit and bike commuter discounts
  • Rain barrel roofwater cachement
  • Recycled paper product use
  • Low flow water faucets
  • Low water use toilets
  • Solar power for water heating AND electric
  • Energy efficient window upgrades
  • Built-in filtered water system
  • High level of recycling throughout clinic

Hawthorne Chiropractic also maintains an active presence in the healing community, coordinating care with other medical professionals when necessary. Having practiced in the Portland area since 1993, we have a robust referral list ranging from Reiki to radiology.  At times, we may refer you to one of these health care professionals for services that complement your chiropractic treatment.

Our Doctors

Amy Lennon, DC

Amy has a strong interest in the problem solving aspects of chiropractic and enjoys searching for new techniques to aid the body to heal itself. Presently her interest in biomechanics expresses itself through Functional Movement Screening, FAKTR, ART (Active Release Technique), and Graston, the combination of which has contributed to new levels of success with stubborn and unresolved cases. Amy’s genuine nerdy interest in research has resulted in an open mind regarding all different techniques of healing and a wide network of peer practitioners in multiple disciplines. As a result, we enjoy an extensive referral database.

Amy is a current member of the American Chiropractic Association, The Chiropractic Association of Oregon, The American Chiropractic Sports Council and a graduate of Western States Chiropractic College and SUNY at Buffalo. After graduating Western States Chiropractic College, she worked as the director of women’s health at their outpatient clinic (teaching and supervising both students and colleagues both intrapelvic techniques and pap/pelvic exams), before opening a private practice with her husband Cliff. She is ART certified in Upper Extremity, Lower Extremity, Spine, Masters and presently studying ART biomechanics for certification. Strong interests and private study: Grey Cook, Buchberger, Reinold, gait analysis, Chi running, forefoot running and Nerve Flossing. Hobbies: running, swimming, hiking, gaming and hanging with friends, travelling and a bit of crossfit. Biking, sewing and reading.

Cliff Marhoefer, DC

Cliff received his B.A. degree in Environmental Studies from UC Santa Barbara and his Doctorate of Chiropractic degree from Western States Chiropractic College in 1991. He has been in private practice in Portland since 1993 and utilizes many soft tissue techniques in his own practice. He has been formally trained in Graston Technique, Fascial Manipulation, FAKTR, Kinesiotaping and has advanced training in sports medicine (Certified Chiropractic Sports Physician, CCSP). He tends to be a very gentle provider and is the “brains” of the family, graduating magna cum laude from Chiropractic College. 

He also played Ultimate Frisbee for over 20 years, winning the national championship 2 times as a member of the Santa Barbara Condors. He was voted into the Ultimate Frisbee Hall of Fame in 2011. Now he enjoys traveling with his family, running and day-to-day family life.

Uma Mulnick, DC

Dr. Uma states: “We can create whatever we want in our lives. I choose to create JOY!”

“My life’s work is to help people to create Balance, Peace and Joy in their lives through Natural and Creative methods. Having been a chiropractor and acupuncturist for the past 34+ years my life has expanded to include the creative process in my work and my life. After experiencing major changes and epiphanies during the past few years the Mandala and Color of Woman/Intentional Creativity processes have broadened and deepened my connection to my soul and my Joy. When I paint, I am in the state of Love (and I like being in that state!)

I offer my art and my healing connections through my Chiropractic practice as well as I offer group and private painting workshops. www.UmasHealingCenter.com

In addition to the love of her practice and art, Dr. Uma has2 grown children and a 4-year-old granddaughter that are “all the greatest blessings of my life.”

Dr. Uma joins Hawthorne Chiropractic after being in practice for 34 years. Upon graduating from Western States Chiropractic College (now University of Western States) she practiced in Portland for 8 years before moving to Idaho to raise her family. Now after 25 years she returns to the Greater NW area.

Arden Freedman, DC

Arden received his BS from Cornell University and his Doctor of Chiropractic from the University of Western States. Growing up, he was a devoted soccer player, which led to a history of injuries. Through the utilization of chiropractic, he was able to continue playing competitive soccer throughout his undergraduate studies. This led him to join the world of  chiropractic care. He strives to help people live more enriched lives and has found his passion in helping eliminate the barriers that stop people from doing what they love. Just like his chiropractor was able to help him continue his passion of playing soccer and staying active!

Through personal experience, Arden has gravitated to an integrative approach to care with an emphasis on adjusting and muscle work, as well as targeted exercises that get to the root of the problem. He believes that his job is not only to help people heal, but to also give them the necessary tools and knowledge they need to empower themselves into feeling even better than they did pre-injury. Arden has a strong interest in understanding the cause of an injury, which has led him to study human biomechanics. This interest has led him through training by the Prague School of Rehabilitation in the principles of Dynamic Neuromuscular Stabilization as well as becoming a certified yoga instructor. He has also completed training in the McKenzie Method of Mechanical Diagnosis and Therapy, which is especially efficient at treating disc herniations.

Our Massage Therapists

Katherine Souza, LMT, LAC, ND

Dr. Katherine Souza approaches health care holistically and integratively, regularly working as a team at Hawthorne Chiropractic. You will be treated with compassion, professionalism, and integrity. Dr Souza utilizes diverse and unique approaches to address your health and wellness goals, including acupuncture, massage, nutritional counseling, qi gong exercises, and homeopathy, creating a unique therapeutic experience. Acupuncture can be an effective treatment for musculoskeletal pain, gastrointestinal symptoms, autoimmune disorders, anxiety, and head injuries. Dr. Souza has been trained in gentle acupuncture techniques, approachable for those new to acupuncture or afraid of needles. Dr. Souza is trained in various manual therapy techniques include cranial sacral, myofascial release, shiatsu, visceral manipulation, and deep tissue. Katherine looks forward to accompanying you on your journal towards wellness.

Heidi Stachelrodt, LMT


Sadie Beam, LMT


Office Staff


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