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Keith Stelzer MD PhD

Radiation Oncologist

Dr. Keith Stelzer is a leading expert in the application of intensity modulated radiation therapy (IMRT) the state-of-the-art technology used at Celilo that shapes radiation beams more precisely to spare surrounding tissue.

Dr. Stelzer graduated from the University of California Davis in 1981. He received his Ph.D. in toxicology from the University of Kansas Medical Center in 1985 and his medical degree from the University of California, Los Angeles, in 1989.…

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Donna Tull

Physical Therapist

Donna began her career at the Rehabilitation Institute of Oregon (RIO) in Portland, where she spent 8 years providing physical therapy treatment to an adult patient population with neurologic disorders including stroke, spinal cord injury, brain injury, and many other complex diagnoses.

This formative time not only expanded her clinical skills and knowledge, but also deepened her passion for working with people striving to regain their independence by over coming their physical challenges.…

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Nathan Ullrich MD

Urologist and Surgeon

Dr. Nathan Ullrich joined Gorge Urology in 2011. He is trained to diagnose and treat all types of urologic disorders in men and women, as well as disorders of the male reproductive system.

“What I especially like about urology is working with people to improve their quality of life,” says Dr. Ullrich. “It’s important for patients to be heard regarding their health issues.”

Dr.…

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Amber Valenti Armstrong PA-C

Certified Physician’s Assistant

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Arthur Van Eaton MD

Pathologist

Credentials School: Oregon Health Sciences University School of Medicine Residency: St. Vincent Hospital, Portland, Oregon: Surgery; St. Vincent Hospital, Portland, Oregon: Pathology Internship: Long Beach Medical Center, Long Beach, California: Rotating Fellowships: Department of Anatomy, University of Oregon Medical School, Portland, Oregon Certification: American Board of Pathology Get Directions to Mid-Columbia Medical Center Get directionsOpen standalone map in fullscreen modeMid-Columbia Medical Center

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Johanes Van Es LAc

Licensed Accupuncturist

Credentials School: Portland State University, Bachelor of Arts, German Language and Literature, 1992

Oregon College of Oriental Medicine, Master of Arts, Oriental Medicine, 2004 Certification: Licensed Acupuncturist, 2004

Diplomat of Acupuncture – National Certification Commission for Acupuncture and Oriental Medicine, 2004 Get Directions to Mid-Columbia Medical Center Get directionsOpen standalone map in fullscreen modeMid-Columbia Medical Center

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