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Family Practitioner, Primary Care Doctor, Preventive Medicine / Wellness
35 years of experience
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 Horstmann:

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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 Horstmann is Excellent. Dr. Horstmann has been reviewed by 3 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

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

Specialties & Research

Dr. Jonathan Horstmann, MD is board certified in Family Medicine and Preventive Medicine - Undersea and Hyperbaric Medicine.

Education & Awards

Dr. Horstmann graduated from Washington University at St. Louis, Saint Louis.


Dr. Horstmann has 2 hospital affiliations:

  • Redlands Community Hospital 
  • Community Hospital of San Bernardino 


  • Spanish

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Additional Information
Dr. Jonathan W Horstmann MD is a male Family Practitioner, has 35 years of experience and practices in Family Medicine and Undersea and Hyperbaric Medicine.
Where does Dr. Jonathan W. Horstmann practice?
Dr. Jonathan Horstmann has 2 office locations.
Dr. Jonathan Horstmann practices Family Medicine and Undersea and Hyperbaric Medicine near Redlands, CA.
Additional practice locations include: Colton, CA.
See Redlands Family Physicians and Redlands Preventive Medicine Specialists.