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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).


Our records indicate this doctor is retired.

Learn more about Dr. Robert Zaas:

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Specialties & Research

Dr. Robert Zaas, MD is board certified in Orthopaedic Surgery.

  • He has special expertise in 2 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis

Education & Awards

Dr. Zaas graduated from University of Chicago.


Dr. Zaas has 1 hospital affiliations:

  • Hillcrest Hospital 

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Additional Information
Dr. Robert David Zaas MD is a male Orthopaedic Surgeon and practices in Orthopaedic Surgery.
Where does Dr. Robert D. Zaas practice?
Dr. Robert Zaas has 1 office location.
Dr. Robert Zaas practices Orthopaedic Surgery near Cleveland, OH.
See Cleveland Orthopedic Surgeons.