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Family Practitioner, Primary Care Doctor, Preventive Medicine / Wellness
33 years of experience
Accepting new patients
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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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

> > > > Dr. Jonathan Horstmann, MD

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Additional Information
Dr. Jonathan William Horstmann MD is a male Family Practitioner, has 33 years of experience and practices in Family Medicine and Undersea and Hyperbaric Medicine.
Where does Dr. Jonathan W. Horstmann practice?
Dr. Jonathan Horstmann has 3 office locations.
Dr. Jonathan Horstmann practices Family Medicine and Undersea and Hyperbaric Medicine near Colton, CA.
Additional practice locations include: Redlands, CA.
See Colton Family Physicians and Colton Preventive Medicine Specialists.