Our Providers

Oleg Maksimov, MD

Oleg Maksimov

Dr. Maksimov is President of Columbia Pain and Spine Institute. His primary focus is to provide high quality diagnosis and treatment of painful spinal conditions, pain relief and functional restoration. Dr. Maksimov is a board certified physician by the American Board of Physical Medicine and Rehabilitation. He completed his physiatry residency at the University of Rochester, Rochester, NY. He continued sub-specialty studies at the prestigious University of Pennsylvania Interventional Spine fellowship. Dr. Maksimov practices evidence based algorithms using physical modalities, medications and minimally invasive spine procedures for diagnosing and treating back and neck pain disorders.

Howard Grattan, MD

Howard Grattan

Dr. Grattan is a fellowship trained and double board certified pain management and physical medicine and rehabilitation physician. His training was completed at Loma Linda University known for a focus on whole person care. He uses this training to address the multiple facets of the patients’ lives that are contributing to their suffering. Dr. Grattan uses multiple diagnostic and treatment modalities to accomplish functional improvements above and beyond pain control, including NCS/EMG, fluoroscopically guided injections and radiofrequency ablation to name a few. He is comfortable treating all painful conditions and works to minimize opioid pain medications.

Jordan Garman, DO

Jordan Garman

Dr. Garman is board eligible in pain medicine and physical medicine and rehabilitation. He uses his training and considerable experience to treat patients in a compassionate and evidence based manner.  Dr. Garman uses multiple modalities including medication, physical rehab, and minimally invasive injections for diagnosis and treatment of pain disorders.

His aim is to attain maximum functional improvement in every patient.

Laarnie Chaco, PA-C

Laarnie Chaco

Laarnie Chaco, PA-C, is a Physician Assistant at Columbia Pain and Spine Institute. She is certified by the National Commission on Certification of Physician Assistants (NCCPA) and a member of Oregon Medical Association (OMA). She graduated from Stanford School of Medicine Primary Care Associate Program and obtained her Master's Degree in Medical Science from St. Francis University. She has several years of providing care to patients in a variety of fields including Oncology, Urgent Care and Family Practice.

Nikkiel Lefebre, FNP

Nikkiel Lefebre

Nikkiel LeFebre is a Family Nurse Practitioner board certified by the American Association of Nurse Practitioners. She is a member of the Oregon Nurse Practitioners (ONP) Association and participant as a committee member for ONP education committee and education marketing subcommittee. She completed her undergraduate from Oregon Health and Science University; and her graduate studies at Washington State University. She partners with her patients and physician colleagues to develop treatment plans that address the multifaceted care needs for patients living with a multitude of pain syndromes. She has previously worked in family medicine, oncology, and chronic pain management.