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Joshua D. Prager, OD

Photo of Joshua D. Prager, OD

My specialty:

My provider affiliation:
Kaiser Permanente provider

I speak: English

My gender: Male


Find out about

Where I practice

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  • Urgent care services
  • After-hours services
  • Pharmacy services
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About me

Welcome to my Web page! I am happy to introduce myself to you, and tell you a little about myself and my practice. I look forward to providing you with excellent comprehensive eye care. I am a native Californian and—except for one year living in Connecticut—I have been in Southern California my entire life.


I chose optometry as my profession because it would allow me to serve people and take advantage of my scholastic strengths in math and science, and because I would be able to help people see better. I attended the Southern California College of Optometry in Fullerton beginning in the fall of 1982. At the completion of my optometry degree, I decided to extend my education and apply for and participate in a one-year residency in Low Vision/Rehabilitative Optometry at the West Haven Veterans Hospital in Connecticut. After that, I returned to Southern California and was hired at Kaiser Permanente Fontana Medical Center in 1988 (where I also met my wife).

About my practice

My current optometry practice is at the Riverside Medical Center. My colleagues are very friendly and helpful. We are fortunate to be able to consult with primary care providers as well as our colleagues from the ophthalmology department, so we can provide you with the best eye care possible. I have a wonderful medical assistant who you will see when you visit. We are all committed to the team approach to caring for our patients, and we strive to make sure that you receive excellent care. My philosophy of care is to do what is best for my patients' needs. I enjoy learning about my patients backgrounds, and discussing their visual needs for the job, school, home and recreational activities in which they are involved, and ultimately come up with the best solutions for their problems.

How I thrive

Balancing home life and work is difficult at times, but it’s very important to me. I strive to be the best optometrist, husband, and father I can be. I also value being involved with my church and community. I spend my free time playing tennis, using my scroll saw, taking the RV for a spin with my wife and six-year-old Shi-Tsu, and playing my clarinet.

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My office

Languages spoken by medical staff

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My Provider type


Medical groups and plans

Southern California Permanente Medical Group

List Header Plans Accepted
  • Exclusive Provider Organization (EPO)
  • HMO
  • Medi-Cal Managed Care
  • Point-of-Service Plan (POS)
  • Senior Advantage/Medicare Cost
Optometry Department
10800 Magnolia Ave, Riverside, CA 92505

Contact information

  • Advice/appointments
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)
  • Information
  • 951-353-3005 (TTY for the hearing/speech impaired)
  • Information from Moreno Valley
  • 951-247-3183
  • Medical Center Operator
  • 951-353-2000

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My training, certifications and licensing

Professional school

Marshall B Ketchum University
Fullerton , CA


This information is not available at this time.

Professional training



New England College of Optometry
Boston , MA

Joined Kaiser Permanente


Active license information

License number


License type


License issuing state


National Provider Identifier (NPI)

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My hospitals

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To find:

  • a provider's office hours, search our facility directory
  • providers in your plan or accepting new patients, call 1-800-464-4000 (toll free) or 711 (TTY for the hearing/speech impaired)

The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change. Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711 (toll free). You can also call the Medical Board of California at 916-263-2382, or visit their websiteExternal Link.

We want to speak to you in the language that you’re most comfortable with when you call or visit us. Qualified interpreter services, including sign language, are available at no cost, 24 hours a day, 7 days a week during all hours of operations at all points of contact. We do not encourage the use of family, friends or minors as interpreters. Only the services of interpreters and qualified staff are used to provide language assistance. These may include bilingual providers, staff, and healthcare interpreters. In-person, telephone, video, and alternative modes of communication are available. Learn more about interpreter services

If you would like to report an error in provider or facility information, please contact us.

Kaiser Permanente enrollees have full and equal access to covered services, including enrollees with disabilities as required under the Federal Americans with Disabilities Act of 1990 and Section 504 of the Rehabilitation Act of 1973.

Kaiser Permanente uses the same quality, member experience, or cost-related measures to select practitioners and facilities in Marketplace Silver-tier plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business.The measures may include, but are not limited to, HEDIS/CAHPS performance, member/patient complaints, patient safety scores, hospital quality measures, and geographic need. Members enrolled in KFHP Marketplace plans have access to all professional, institutional and ancillary health care providers who participate in KFHP plans’ contracted provider network, in accordance with the terms of members’ KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.
Kaiser Permanente uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business. Accessibility of medical offices and medical centers in this directory: All Kaiser Permanente facilities are accessible to members.


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