Ketamine Assisted Psychotherapy

Board certified in Family Medicine and Osteopathic Manipulative Treatment, Dr. Leesman developed a holistic practice that supports individuals on their wellness path. He emphasizes treatments that focus on the root cause, not just treating symptoms. He subsequently became interested in psychedelics as a way to approach mental health in a similar way. After training and certification at the Psychedelic Research and Training Institute in 2020, he began providing ketamine assisted psychotherapy in the following Spring. He continues to be amazed and grateful for the meaningful change he regularly witnesses in clients. He has furthered his clinical skills by gaining further certification on group psychedelic treatments and is excited to bring this powerful modality to both the office and retreat environments.

Outside of the office, he enjoys numerous outdoor activities including travel, rock climbing, mountain biking, and mountaineering.

Dr. Leesman maintains membership with the American Psychedelic Practitioners Association.

Osteopathic Manipulitive Medicine

Dr. Matsumoto spent his formative years romping around northern CA in the town of Sebastopol. He ventured off to learn some of the dysfunctions of the world and its complex interconnectedness during his time at University of California Santa Barbara in the Global Studies program. Carried by the youthful momentum of wanting to be a positive agent of change, he went to medical school at Touro University in Vallejo, CA. He was immediately enthralled with osteopathic manipulative medicine (OMM) as a witness, patient, and practitioner. He moved to Corvallis for his internship and family medicine residency training for its great OMM opportunities. Although his training has been somewhat conventional, he has stayed inline with the osteopathic approach to treat the whole person. He has focused his efforts to let health express itself in our complex interconnected bodies by addressing areas of restriction through OMM.

He treats infants, children, and adults, including pregnant women from a traditional osteopathic approach. OMM can be helpful for somatic pain, traumatic injuries, and chronic conditions unresponsive to conventional treatment.

Dr. Matsumoto is a member of the Cranial Academy and American Osteopathic Association.

Outside of the office, Dr. Matsumoto can be found cooking, hiking, painting, and/or traveling with his wife, daughter, and son. He can also be found on the ice playing hockey, primarily in Eugene.

Psychiatry

Dr. Gomez is an American Board of Psychiatry and Neurology certified psychiatrist. She embraces a holistic, trauma informed approach to treatment and is able to provide psychiatric evaluation and ongoing treatment through psychotherapy (talk therapy) and psychopharmacology (prescribing medications). She believes that psychiatric medication is most effective when the care is patient centered and supported by psychotherapy, an active lifestyle, community, healthy relationships and a nutrition rich diet. She is passionate about helping people navigate mental health conditions to live a meaningful life. Dr. Gomez completed her psychiatry residency training program at Good Samaritan Regional Medical Center here in Corvallis. She has worked in mental health clinics in the Corvallis area as well as inpatient mental health settings in Oregon. Most recently Dr. Gomez was teaching mental health related topics to medical students in Barbados. Outside the office she does what she can to practice the lifestyle she recommends to her patients, by taking calming walks in nature, reading, investing in healthy relationships, building community, traveling, cooking, gardening and getting enough rest.