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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 (6)

The overall average patient rating of Dr. Rolf Knapp is Excellent. Dr. Knapp has been reviewed by 20 patients who have provided 6 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.4
Promptness 4.3
Courteous Staff 4.5
Accurate Diagnosis 4.9
Bedside Manner 4.9
Spends Time with Me 4.7
Follows Up After Visit 4.3

Education & Awards

Dr. Knapp graduated from Western University of Health Sciences, Pomona. He has 4 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012, 2014 - 2015)
Compassionate Doctor Recognition (2010 - 2012, 2014 - 2015)
Top 10 Doctor - City (2014)
Orange, CA
Family Practitioner


Dr. Knapp has 3 hospital affiliations:

  • St. Joseph Hospital - Orange 
  • Western Med Ctr Santa Ana 
  • St. Joseph Hospital Affiliated Physicians 


  • Spanish

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Additional Information
Dr. Rolf Didrek Knapp DO is a male Family Practitioner, has 25 years of experience and practices in Family Medicine.
Where does Dr. Rolf D. Knapp practice?
Dr. Rolf Knapp has 1 office location.
Dr. Rolf Knapp practices Family Medicine near Orange, CA.
See Orange Family Physicians.