Please contact to schedule and confirm appointment availability.
Ron E. Kastner, MD
Optum Provider
Specialty
Internal Medicine
Languages
English
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Patient Reviews
Patient review summary
Learn about our survey5.0
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I have been seeing Dr. Kastner for over 20 years. He has always provided excellent medical care. He is thorough but not an alarmist. He is great at explaining things, and is very compassionate. He has my complete trust.
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professionally knowledgeable
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Professional with a complete investigation
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Just a great and caring doctor
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Dr. Kastner is very thorough and genuinely cares about his patients. He follows up well and uses technology very well to manage his practice.
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a very good doctor...
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I felt my health has improved under Dr Kastner's care.
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dr kastner is a smart and caring doctor he’s just a nice man
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Friendly and clear
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good doctor
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Very good
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Great doctor, extremely knowledgeable, caring, provides excellent advice and instructions, gains patients trust.
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Thorough and knowledgeable
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He cares for his patients. Takes all the time he needs to explain things and answers you questions.
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Dr kastner has been my primary for over 20 years I think and will be for next 20 He’s the best
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My doctor for 20 years. Never had an issue w dr k
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Dr. Kastner has been my primary care physician for over 30 years. He listens to any concerns and provides well-informed recommendations for my continued healthcare. He is always attentive and thoughtful in my treatment and therefore is a trusted advocate for my continued well-being.
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Very clear and listened
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Dr Kastner is fantastic. Very informative and caring
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Dr. Kastner is very knowledgeable, thorough and takes the time to address all of of the relevant issues.
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About Ron E. Kastner, MD
Dr. Ron E. Kastner is a board certified internist. He completed medical school at New York University and residency at Mount Sinai Hospital.Philosophy of care
Dr. Kastner provides comprehensive primary care with a focus on continuity and prevention.Gender
Male
Board certifications
American Board of Internal Medicine
Licenses
NY, 198283
Employed or contracted
Employed
Network Name
ProHealth
NPI
1134200058
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Insurance Accepted
This list is for informational purposes only and may not reflect the most current plans accepted by the provider. Optum accepts most major health insurance plans. Please contact your insurance company to confirm your coverage, eligibility, and the provider's participation in your plan.
- 1199
- Aetna
- Affinity
- Anthem BCBS
- CHN
- Centivo
- Cigna
- Coventry
- EmblemHealth
- First Health
- Humana
- MagnaCare
- Medicaid
- Medicare
- MultiPlan
- NYSHIP
- Northwell Direct
- Oscar
- Oxford
- TRICARE
- UHC
- UMR
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Education
Medical School
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New York University School Of Medicine
Residency
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Mount Sinai Medical Center
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The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area.
The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.
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