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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. Jan Duncan is Good. Dr. Duncan has been reviewed by 36 patients who have provided 9 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.2
Promptness 4.1
Courteous Staff 4.6
Accurate Diagnosis 4.4
Bedside Manner 4.1
Spends Time with Me 3.8
Follows Up After Visit 4.3

Specialties & Research

Dr. Jan Duncan, MD is board certified in Orthopaedic Surgery.

  • He has special expertise in 5 areas:
  • Back Injuries
  • Head and Neck Disorder
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)

Education & Awards

Dr. Duncan graduated from University of Tennessee, Memphis.


Dr. Duncan has 21 hospital affiliations:

  • Los Angeles County + University of Southern California Medical Center 
  • California Hospital Medical Center 


  • Chinese
  • Spanish
  • English

> > > > Dr. Jan Duncan, MD

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Additional Information
Dr. Jan William Duncan MD is a male Orthopaedic Surgeon, has 46 years of experience and practices in Orthopaedic Surgery.
Where does Dr. Jan W. Duncan practice?
Dr. Jan Duncan has 1 office location.
Dr. Jan Duncan practices Orthopaedic Surgery near Los Angeles, CA.
See Los Angeles Surgeons.