Summary

Dr. Jonathan Greer is a family medicine physician with additional specialization in pediatrics and hospice & palliative medicine. He earned his medical degree from the University of Nevada School of Medicine and has been practicing for 39 years, bringing extensive experience to his comprehensive care approach. Dr. Greer speaks English and provides medical services across multiple age groups and care settings.

Dr. Greer practices at Kaiser Foundation Hospital in Fontana, California. His expertise includes treating conditions such as pressure sores, bladder control issues, and urgent urinary problems. He performs diagnostic imaging procedures including arm and leg X-rays, chest imaging, and chest X-rays to help diagnose various medical conditions. Patients have given Dr. Greer an average rating of 5.0 on Vitals, reflecting their confidence in his care.

AI-generated from data on this provider profile.

Quick Facts

  • 5
  • 39 years of experience
  • 10 insurance plans accepted
  • speaks English
  • University Of Nevada School Of Medicine
  • 3 specialties
  • 3 areas of expertise
  • 3 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Kaiser Foundation Hospital

9961 Sierra AveFontana, CA 92335
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

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Dr. Jonathan Roger Greer, MDMichael Benavidez, DODr. Michelle Simi, MDDr. Joseph Michael Gomes, MD
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
4.3 
39 Years of Experience 34 Years of Experience 32 Years of Experience 14 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English Speaks English, Spanish Speaks English
Fontana , CAUpland , CAORINDA , CAFolsom , CA
Med School: University Of Nevada School Of Medicine Med School: Western University of Health Sciences Med School: University Of Chicago Division Of The Biological Sciences The Pritzker School Of Medicine Med School: American University Of The Caribbean School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Jonathan Roger Greer

  • Aetna
  • Kaiser Permanente
  • Kaiser Permanente - Medicaid (Managed)
  • L.A. Care Health Plan - HMO
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Presbyterian Health Plan/Presbyterian Insurance Company
  • UnitedHealthcare - PPO

Medical Specialties

Dr. Jonathan Roger Greer has the following 3 specialties

Specialty Expertise

Dr. Jonathan Roger Greer has the following 3 areas of expertise

  • General Practice
  • Hospice & Palliative Medicine
  • Pediatrics

Certifications, License, & Education

39 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Medical School

University Of Nevada School Of MedicineGraduated in 1987

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Frequently Asked Questions

Where is Dr. Jonathan Greer's office located?
Dr. Jonathan Greer's office is located at 9961 Sierra Ave, Fontana, CA, 92335.
Is Dr. Jonathan Greer accepting new patients?
Dr. Jonathan Greer has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Jonathan Greer accept my insurance?
You can see the insurance plans that Dr. Jonathan Greer accepts on their Vitals profile.
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.

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