Our Doctors

Michael R. Gray, M.D., M.P.H., C.I.M.E.

Dr. Gray has practiced Internal Medicine and Toxicology in Benson since 1978, earning his medical degree from the University of Cincinnati College of Medicine. He is board-certified in Occupation & Preventive medicine and is a board-certified independent medical examiner. He completed his masters degree in Public Health at the University of Illinois school of Public Health. He did his residency in Internal Medicine and his fellowship in Occupational Medicine at Cook County Hospital in Chicago. Dr. Gray is also on-staff at Benson Hospital, located at 450 S. Ocotillo Ave. Benson, Arizona.

Craig Ottenstein, M.D.

Dr.Ottenstein has practiced Internal Medicine for the past 35 years, most recently moving to Arizona from Albuquerque, New Mexico. He received his medical degree from the University of Rochester, and his Board Certification in Internal Medicine after completing his Internship and Residency at the University of Texas, San Antonio. In addition to his internal medicine specialty, he is interested in hands-on Manual Medicine techniques for select patient problems.

Sean Paul Dorado, P.A.-C

Mr. Dorado PA-C has been practicing medicine since 2004 here at Progressive Healthcare Group in Benson. Mr. Dorado graduated Midwestern University in Glendale, Arizona with a Masters of Medical Education and Bachelor of Science in Physician Assistant studies. Prior to becoming a Physician Assistant, Mr. Dorado worked as a Registered Respiratory Therapist in Tucson working with Tucson Heart Hospital and St Josephs’ Hospital. Mr. Dorado also has an associates of Science degree in Respiratory Therapy. Prior to endeavors in medicine Mr. Dorado was a United States Marine.

Visiting Physicians

Dr. John Klein - Orthopedic
Dr. Ted Goldfinger – Cardiologist
Dr. Georges Youseff – Pulmonologist



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