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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).

Learn more about Dr. Jonathan Rosaasen:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Jonathan Rosaasen, Family Practitioner is Excellent. Dr. Rosaasen has been reviewed by 11 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 4.9
Courteous Staff 4.0
Accurate Diagnosis 4.2
Bedside Manner 4.7
Spends Time with Me 4.5
Follows Up After Visit 4.2

Specialties & Research

Dr. Jonathan Rosaasen, MD is board certified in Family Medicine.

  • He has special expertise in 1 area:
  • Preventive Medicine

Education & Awards

Dr. Rosaasen graduated from Loma Linda University. He has 3 awards.

Patients' Choice Award (2008 - 2009, 2014 - 2015)
Compassionate Doctor Recognition (2014)
On-Time Doctor Award (2014 - 2015)


Dr. Rosaasen has 1 hospital affiliations:

  • Simi Valley Hospital 


  • Spanish
  • English

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Additional Information
Dr. Jonathan A Rosaasen MD is a male Family Practitioner, has 9 years of experience and practices in Family Medicine.
Where does Dr. Jonathan A. Rosaasen practice?
Dr. Jonathan Rosaasen has 1 office location.
Dr. Jonathan Rosaasen practices Family Medicine near Moorpark, CA.
See Moorpark Family Physicians.