Dr. William Simon Markey MD Gastroenterologist

Dr. William Markey is a gastroenterologist in Chicago, Illinois. He is affiliated with multiple hospitals in the area, including Advocate Illinois Masonic Medical Center and Saint Joseph Hospital. He received his medical degree from Case Western Reserve University School of Medicine and has been in practice for 39 years. Dr. Markey accepts several types of health insurance, listed below. He is one of 20 doctors at Advocate Illinois Masonic Medical Center and one of 20 at Saint Joseph Hospital who specialize in Gastroenterology.

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Office Location

See Contact Information

Specialty & Clinical Interests

Gastroenterologist: General Gastroenterology

Hospital Affiliation

St. Joseph Hospital
High performing in Gastroenterology & GI Surgery

Advocate Illinois Masonic Medical Center

Saint Joseph Hospital

Education & Medical Training

Rush University Medical Center
Residency, Internal Medicine, 1971 - 1974

Rush University Medical Center
Fellowship, Gastroenterology, 1976 - 1978

Case Western Reserve University School of Medicine
Class of 1971

Certifications & Licensure

American Board of Internal Medicine
Certified 40 years in Internal Medicine

American Board of Internal Medicine
Certified 35 years in Gastroenterology

IL State Medical License
Active through 2014

Publications & Presentations

Familial medullary carcinoma and parathyroid adenoma without pheochromocytoma. Report of two cases.
Markey, W. S., Ryan, W. G., Economou, S. G., Sizemore, G. W., Arnaud, C. D.

Pseudoobstruction in the geriatric population.
Adler, Y. T., Draths, K. G., Markey, W. S.

Removal of amantadine hydrochloride by dialysis in patients with renal insufficiency.
Ing, T. S., Mahurkar, S. D., Dunea, G., Hayashi, J. A., Klawans, H. L., Markey, W. S.

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • BCBS Illinois BlueChoice Select
  • BCBS Illinois PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • Cofinity PPO
  • First Health PPO
  • Great West PPO
  • Health Net Oregon PPO
  • HealthLink PPO
  • Humana ChoiceCare Network PPO
  • Lifewise Health Plan of Oregon
  • Multiplan PHCS PPO
  • Multiplan PPO
  • ODS Network
  • PacificSource Preferred PSN
  • Providence Health System Personal Option
  • Providence Health System Preferred PPO
  • Regence Oregon - Preferred Provider Network
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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