> > > > Dr. Jonathan Horstmann, MD
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.
Dr. Jonathan Horstmann has 3 office locations.
Cooley Ranch
Beaver Medical Group
1300 E Cooley Dr
Colton, CA 92324

Phone Number
Locations and availability (3)
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:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

No reviews yet…
be the first!

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 

Accepted Insurance Plans

Dr. Horstmann accepts these health insurances in at least one office:

  • United Healthcare - 23 plans
  • Great-West Healthcare - 1 plan
  • Unicare - 11 plans
  • Anthem Blue Cross - 15 plans
  • Evercare - 2 plans
  • Cigna - 1 plan


  • Spanish

Similar doctors nearby

Dr. Robert Yamada

Family Medicine
25 years experience
Colton, CA

Dr. Robert Bourne

Family Medicine
38 years experience
Colton, CA

Dr. Carlos Ramirez

Family Medicine
2 years experience
Colton, CA

Dr. Harpreet Singh

Family Medicine
7 years experience
Colton, CA

Dr. Walker Felix

Adult Medicine
22 years experience
Colton, CA

Dr. Kuang-Chih Lo

Family Medicine
20 years experience
Colton, CA
Search All Similar Doctors
Additional Information
Where does Dr. Jonathan W. Horstmann practice?
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.