Boomerang - Colton

900 E Washington St, Ste 301, Colton, CA 92324

Fax: (909) 370-0303

Clinic Hours: MON – FRI 8AM – 5PM

Clinic Hours:

1st and 2nd Wednesday of each month from 9am to 4pm.

Schedule An Appointment

Current Patients:
Call to schedule: (909) 370-0300
New Patients:

Contact Our Boomerang - Colton

Boomerang - Colton - Providers


Jiensup Kim, MD

JienSup Kim, M.D. is ABPMR Board Certified in Physical Medicine and Rehabilitation. He graduated from Southwestern Adventist University with honors in Biology followed by graduating with a Master of Arts in Biology at Texas Christian University. Dr. Kim completed his medical training at Loma Linda University School of Medicine followed by a one-year internship at the University of Virginia Health and Science Center. He completed a residency in Physical Medicine and Rehabilitation at Loma Linda University where he was distinguished with the Pride in Service Award. Following residency, he completed a one-year fellowship in interventional pain management. Dr. Kim served as both an attending physician and clinical professor at Loma Linda University educating his peers and future medical providers in the field of Physical Medicine and Rehabilitation. He remains a visiting clinical professor at Loma Linda University to this day Dr. Kim’s interests include neuropathic pain, back and neck pain, joint pain, headaches, fibromyalgia pain, abdominal pain, non-surgical management and rehabilitation of orthopedic issues and industrial injuries, and general debility. He is an expert in interventional pain techniques such as radiofrequency ablation, epidural steroid injections, selective nerve blocks, Botox administration, neuromodulation, and joint injections. Dr. Kim is available to see new patients immediately.


Michael Esposito, MD

Dr. Esposito is a Spine Fellowship trained Orthopaedic Surgeon, specializing in injuries to the shoulders, knees, elbows and low backs. He has been practicing in the Orange County area as an orthopedic surgeon since 1982, providing continued excellent medical care to all patient's.


Scott Small, D.O.

Dr. Scott Small is double board certified in Anesthesiology and Interventional Pain Management. He attended medical school in southern California at Western University of Health Sciences where he graduated with honors in 2007. He then went on to complete his residency in anesthesiology at the University of Connecticut and graduated in 2011. He worked as an anesthesiologist in Orange County for two years where he specialized in ultrasound guided regional anesthesia and post-operative pain management. In 2013 he decided to pursue a fellowship in chronic pain management at the University of Texas in San Antonio. Since that time, he has practiced pain management in Orange County. Dr. Small focuses on a multimodal approach to pain management that combines therapeutic exercise, medication management, and interventions to restore function and improve patient's lives. He is an expert in advanced pain management techniques including ultrasound guided nerve blocks, stem cell therapy, and spinal cord stimulation.


Athena Tuot, NP

Athena Tuot is a Nurse Practitioner that was born and raised in Loma Linda, CA. She is a graduate of Loma Linda University with both a Bachelors in Nursing Science as well as a Doctorate of Nursing Practice with AANP board certification as a family nurse practitioner. She has a nursing background in both adult critical care (medical ICU) and urgent care, which has allowed her to gain valuable skills in both inpatient and outpatient settings - caring for extremely critical patients as well as ambulatory patients of all ages in the community presenting with a variety of acute and chronic concerns. Since graduating with her advanced nursing degree, Athena has worked at a medical weight loss center as a nurse practitioner, helping patients to feel their best physically and promoting a healthy lifestyle. She is excited to now be joining IPM and transition into pain management to help improve the quality of life of chronic pain patients in the community while providing compassionate care.


Crystal Kim, NP

Crystal Kim is a new graduate Adult-Gerontology Nurse Practitioner.  She was born and raised in Fresno, CA but moved to southern California as she started college at UCI. Crystal graduated with a Bachelors in Nursing Science and quickly found a job working as a telemetry nurse at the hospital. She loved working with cardiac patients and eventually found her way to the cardiovascular observation unit where she worked closely with cardiologists pre- and post- cardiovascular procedures. Crystal knew she wanted to elevate her education and decided to go back to school to become a Nurse Practitioner. Crystal completed her education at UCLA. Crystal's extensive work with geriatric patients and long lists of chronic illnesses, including chronic pain, has given her the desire to work close with patients to help them achieve a better quality of life while managing their pain symptoms. Crystal is excited to start this new chapter of her life, and hopes to make an impact while working together with the team and with patients.


Eric Cachia, L.Ac, DACM

Eric M. Cachia has been a practicing Acupuncturist for 17 years in Workers' compensation and Personal injury. He holds 4 degrees and has attended law school. He is licensed in California and holds Doctor of Acupuncture licenses in Florida and Rhode Island as well. He has certifications in Acupuncture Orthopedics, Acupuncture injection therapy and as a Medical Laser Safety Officer. He has taught an Acupuncture certification program for Medical Doctors at the University of Miami Miller school of Medicine and currently serves as an expert witness for the State of California.


Lauren Hunter, DC

Dr. Hunter is a chiropractor and qualified medical examiner. Dr. Hunter received her bachelor of science degree from UC Riverside. She then went on to receive her Doctor of Chiropractic from the Southern California University of Health Sciences where she focused on sports medicine. Following graduation she spent several years as adjunct faculty teaching physical and orthopedic exam skills as well as chiropractic manipulative technique. Dr. Hunter currently practices in Santa Ana where she specializes in personal injury and worker’s compensation.


Mark Nguyen, LCP

Mark Nguyen is a licensed clinical psychologist specializing in chronic pain and cognitive processing deficit treatment. He earned two doctorate degrees in Educational Leadership and Clinical Psychology from the University of Southern California (USC) and the Chicago School of Professional Psychology.  Dr. Nguyen spent his first 15 years working in public education and was an Associate Professor for the School Psychology program at National University in San Diego before joining the IPM team. As a psychologist, Dr. Nguyen helps bring a multidisciplinary approach to patients’ pain management, drawing from different disciplines including Cognitive-Behavioral Therapy, Solution Focused Therapy, Reality Therapy and Applied Behavior Analysis.


Pollyanna Wong, PA

Pollyanna Wong is Bay Area native who graduated with a Bachelor’s in Business Economics from the University of California, Irvine. After discovering her passion in medicine, she began to pursue a lifetime career as a Physician Assistant. She completed a Pre-Medical Post-Baccalaureate program at Mills College and attained a Master of Medical Science in Physician Assistant Studies at Chapman University. Prior to PA school, Pollyanna gained experience in neurosurgery where she had the opportunity to treat various chronic pain patients. During her PA education, she developed knowledge and skills in the fields of orthopedics, neurology, and pain management.

Pollyanna is devoted to providing compassionate, comprehensive, patient-centered care to chronic pain patients, helping them regain functionality and improve their quality of life. She is excited to collaborate with the exceptional multidisciplinary team at IPM to treat patients in a personalized and holistic manner.

Pollyanna currently resides in Orange County. Outside of medicine, she enjoys baking, hiking, traveling, yoga, power-lifting, and spending quality time with family and friends.


Rolando Martinez, DC

Dr. Martinez is a Doctor of Chiropractic, who specializes in sports medicine. He received his Chiropractic degree from the Pasadena College of Chiropractic, California, in 1985. Dr. Martinezhas been in full-time practice since February of 1986. Dr. Martinezis board qualified as a sports medicine specialist and is currently pursuing QME certification.