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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).

Patient Reviews

Patient comments (9)

The overall average patient rating of Dr. Haagen Diener, Orthopaedic Surgeon is Good. Dr. Diener has been reviewed by 45 patients who have provided 9 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.2
Courteous Staff 4.4
Accurate Diagnosis 4.3
Bedside Manner 4.2
Spends Time with Me 4.0
Follows Up After Visit 4.2

Specialties & Research

Dr. Haagen Diener, MD is board certified in Orthopaedic Surgery and Orthopaedic Surgery - Sports Medicine.

  • He has special expertise in 4 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Sports Medicine

Education & Awards

Dr. Diener graduated from New York Medical College, Valhalla. He has 3 awards.

Patients' Choice Award (2008 - 2010, 2012)
Compassionate Doctor Recognition (2010)
On-Time Doctor Award (2014)


Dr. Diener has 3 hospital affiliations:

  • Arizona Orthopedic Surgical Hospital 
  • Banner Desert Medical Center 
  • CHANDLER REGIONAL Medical Center 


  • German
  • Spanish
  • English

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Additional Information
Dr. Haagen A Diener MD is a male Orthopaedic Surgeon, has 15 years of experience and practices in Orthopaedic Surgery and Sports Medicine.
Where does Dr. Haagen A. Diener practice?
Dr. Haagen Diener has 5 office locations.
Dr. Haagen Diener practices Orthopaedic Surgery and Sports Medicine near Mesa, AZ.
Additional practice locations include: Tempe, AZ and Sierra Vista, AZ.
See Mesa Orthopedic Surgeons and Mesa Surgeons.