| Monday | 8:00 AM - 7:00 PM |
|---|---|
| Tuesday | 8:00 AM - 7:00 PM |
| Wednesday | 8:00 AM - 7:00 PM |
| Thursday | 8:00 AM - 7:00 PM |
| Friday | 8:00 AM - 4:00 PM |
| Saturday | Closed |
| Sunday | Closed |
Joshua James Feiner, MD
Specialty
Endocrinology Diabetes & Metabolism
Languages
English
Need help with your Medicare plan options?
Call 1-888-406-0090* to speak with a licensed insurance agent or shop online.
Seeing patients at
Patient Reviews
Patient review summary
Learn about our survey5
4
3
2
1
4.7
59 reviews
-
Apr 29, 2026Verified Review
He cared very much about what was going on with my health and really took the time to listen. Very thorough with responding when I messaged him on the portal with an actual phone call to explain everything I questioned. Overall, he’s a wonderful doctor and I’m very happy that I was referred to him.
-
Apr 29, 2026Verified Review
He explains everything so Thats you understand.
-
Apr 28, 2026Verified Review
Caring answered all Concerns
-
Apr 28, 2026Verified Review
Great Doc!
-
Apr 26, 2026Verified Review
robotic
-
Apr 18, 2026Verified Review
Excellent endocrinologist who cares about his patients.
-
Apr 18, 2026Verified Review
Very efficient explains so I understand.
-
Apr 17, 2026Verified Review
He is attentive and effective
-
Apr 10, 2026Verified Review
He is very good, explains and takes his time with you. If you message him on my chart he gets back to quickly. I am very happy that I switched to Him. My husband and 2 sisters use him as well. And they’re pleased with the care.
-
Apr 9, 2026Verified Review
Explains medication and follow up regarding lab results.
-
Apr 6, 2026Verified Review
great service
-
Apr 5, 2026Verified Review
He is very thorough and professional
-
Apr 2, 2026Verified Review
Gives very specific instructions, very aware of changes in my appearance, wearing a mask to keep himself healthy seems like a good idea to keep staff and patients healthy also.
-
Mar 31, 2026Verified Review
He is good for my issues not sure how he is with other endocrine issues
-
Mar 31, 2026Verified Review
He is very professional and knowledgable and helpful
-
Mar 28, 2026Verified Review
Nice staff , helpful
-
Mar 28, 2026Verified Review
Excellent doctor! Listens to you and is very knowledgeable.
-
Mar 26, 2026Verified Review
Very thorough and explains all medical needs
-
Mar 16, 2026Verified Review
He explains everything he's going to do before doing it. And after my exam & ultrasound he explains what he saw.
-
Mar 15, 2026Verified Review
Professional in dealing with patient
-
About Joshua James Feiner, MD
Dr. Joshua James Feiner is a board certified endocrinologist. He has published research related to diabetes and previously practiced on Eastern Long Island.Philosophy of care
Dr. Feiner partners with patients to support informed, evidence-based endocrine care.Gender
Male
Board certifications
American Board of Internal Medicine
Licenses
NY, 231437
Employed or contracted
Employed
Network Name
ProHealth
NPI
1750560421
-
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
-
Medical School
-
State University of New York (SUNY) - Stony Brook
Residency
-
State University Of New York Upstate
-
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.
You are now leaving Optum and going to a third-party website operated by Google. Optum is not responsible for the content or accuracy of the information on this third-party site. We recommend you review the third-party site's privacy policy and terms of use, as Optum's will no longer apply.
Leaving Optum.com
You are now leaving Optum.com to see Medicare plan choices through our partner site.
Data use
We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy and Terms of Use. By continuing to use the site, you agree to this.