Dr. Mark Lawrence Silen MD Surgeon

Dr. Mark Silen is a surgeon in Portland, Oregon. He is affiliated with multiple hospitals in the area, including Legacy Emanuel Hospital and Health Center and OHSU Hospital. He received his medical degree from Harvard Medical School and has been in practice for 34 years. Dr. Silen accepts several types of health insurance, listed below. He is one of 29 doctors at Legacy Emanuel Hospital and Health Center and one of 40 at OHSU Hospital who specialize in Surgery.

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Office Location

See Contact Information

Specialty & Clinical Interests

Surgeon: General Surgery

Education & Medical Training

New York Presbyterian Hospital, Cornell Campus
Residency, General Surgery, 1980 - 1985

New York Presbyterian Hospital, Cornell Campus
Residency, General Surgery, 1987 - 1989

New York Presbyterian Hospital, Columbia Campus
Fellowship, Pediatric Surgery, 1985 - 1987

Harvard Medical School
Class of 1980

Certifications & Licensure

American Board of Internal Medicine
Certified 33 years in Internal Medicine

American Board of Internal Medicine
Certified 30 years in Pulmonary Disease

American Board of Internal Medicine
Certified 23 years in Critical Care Medicine

CA State Medical License
Active through 2014

Publications & Presentations

Analysis of 29 consecutive thoracoscopic repairs of congenital diaphragmatic hernia in neonates compared to historical controls.
Cho, S.D., Krishnaswami, S., Mckee, J.C., Zallen, G., Silen, M.L., Bliss, D.W.

Biliary atresia.
Zallen, G.S., Bliss, D.W., Curran, T.J., Harrison, M.W., Silen, M.L.

Solitary arteriovenous malformation of the small intestine.
Rizvi, A. Z.,Kaufman, J. A.,Smith, P.,Silen, M. L.

See all 4 publications

Insurances Accepted

  • Aetna Choice POS II
  • BCBS Blue Card PPO
  • BCBS Illinois PPO
  • BCBS Minnesota Blue Cross Accord
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • Excellus BCBS BluePPO
  • First Choice
  • Great West PPO
  • Health Net HMO - Employer Group
  • Health Net Oregon PPO
  • Humana ChoiceCare Network PPO
  • Medical Mutual of Ohio SuperMed Plus
  • Medical Mutual of Ohio SuperMed POS
  • Multiplan PHCS PPO
  • Multiplan PPO
  • ODS Network
  • Providence Health System Personal Option
  • Regence Washington - Preferred Provider Network
  • UniCare PPO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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