5
1 Rating
Summary
Dr. Jonathan Greer is a family medicine physician who also specializes in pediatrics and hospice and palliative medicine. He earned his medical degree from the University of Nevada School of Medicine and has been practicing medicine for 39 years. Dr. Greer speaks English.
Dr. Greer practices at Kaiser Foundation Hospital in Fontana, California. He focuses on treating conditions such as Alzheimer's disease and type 2 diabetes. His expertise includes performing comprehensive metabolic panels and diabetic nephropathy screening to help monitor his patients' health. Patients have given Dr. Greer an average rating of 5.0 on Vitals.
Dr. Greer practices at Kaiser Foundation Hospital in Fontana, California. He focuses on treating conditions such as Alzheimer's disease and type 2 diabetes. His expertise includes performing comprehensive metabolic panels and diabetic nephropathy screening to help monitor his patients' health. Patients have given Dr. Greer an average rating of 5.0 on Vitals.
Overview based on verified provider data
Quick Facts
- 39 years of experience
- 10 insurance plans accepted
- speaks English
- University Of Nevada School Of Medicine
- 3 specialties
- 3 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Kaiser Foundation Hospital
9961 Sierra AveFontana, CA 92335 Tel: (909) 427-5000
Mon12:00 am - 12:00 pm
Tue12:00 am - 12:00 pm
Wed12:00 am - 12:00 pm
Thu12:00 am - 12:00 pm
Fri12:00 am - 12:00 pm
Sat12:00 am - 12:00 pm
Sun12:00 am - 12:00 pm
Compare with Similar Doctors
 |  |  |  |
| Dr. Jonathan Roger Greer, MD | Michael Benavidez, DO | Dr. Lubna Isho, DO | Dr. David Byron, MD |
| Family Medicine | Family Medicine | Family Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 39 Years of Experience | 34 Years of Experience | 25 Years of Experience | 16 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish | Speaks Arabic, English, Spanish | |
| Fontana , CA | Upland , CA | Pomona , CA | Tuscon , AZ |
| Med School: University Of Nevada School Of Medicine | Med School: Western University of Health Sciences | Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific | Med School: Ben-Gurion University Of The Negev Faculty Of Health Sciences |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Jonathan Roger Greer
Medical Specialties
Dr. Jonathan Roger Greer has the following 3 specialties
Specialty Expertise
Dr. Jonathan Roger Greer has the following 3 areas of expertise
Certifications, License, & Education
39 Years Experience
Dr. Jonathan Roger Greer holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expired in 2026.
Education & Training
Medical School
Graduated from University Of Nevada School Of Medicine in 1987.
NPI Number
Dr. Greer's NPI number is 1760468839.
Similar doctors
Frequently Asked Questions
- How can I make an appointment with Dr. Jonathan Greer?
- You can find contact information for Dr. Jonathan Greer here on Vitals.
- Does Dr. Jonathan Greer accept virtual/telehealth appointments?
- Dr. Jonathan Greer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Jonathan Greer's office located?
- Dr. Jonathan Greer's office is located at 9961 Sierra Ave, Fontana, CA, 92335.
- What languages does Dr. Jonathan Greer speak?
- Dr. Jonathan Greer speaks English.
- Which hospitals is Dr. Jonathan Greer affiliated with?
- Dr. Jonathan Greer is affiliated with Kaiser Foundation Hospital.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.
