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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 (5)

The overall average patient rating of Dr. Karl Johsens is Excellent. Dr. Johsens has been reviewed by 13 patients who have provided 5 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.7
Courteous Staff 4.6
Accurate Diagnosis 4.7
Bedside Manner 5.0
Spends Time with Me 4.9
Follows Up After Visit 4.5

Specialties & Research

Dr. Karl Johsens, MD is board certified in Internal Medicine.

Education & Awards

Dr. Johsens graduated from University of Hawaii, Honolulu. He has 3 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012)
Compassionate Doctor Recognition (2010 - 2012)


Dr. Johsens has 3 hospital affiliations:

  • Watsonville Community Hospital 
  • Dominican Hospital 
  • Kingman Regional Medical Center 


  • English

> > > > Dr. Karl Johsens, MD

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Additional Information
Dr. Karl Knudsen Johsens MD is a male Internist, has 19 years of experience and practices in Internal Medicine.
Where does Dr. Karl K. Johsens practice?
Dr. Karl Johsens has 11 office locations.
Dr. Karl Johsens practices Internal Medicine near Redwood City, CA.
Additional practice locations include: Santa Cruz, CA and San Jose, CA.
See Redwood City Internists.