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Dr. Jonathan Castro, MD

Dr. Jonathan Castro, MD

Age 52 Endocrinology, Diabetes & Metabolism M
Star rating icon (17) 17 reviews

Telehealth available

Accepting New Patients


Dr. Jonathan Castro, MD is a endocrinology, diabetes & metabolism specialist in New Windsor, NY. Dr. Castro completed a residency at Suny Downstate Mc. He currently practices at Horizon Family Medical Group and is affiliated with Garnet Health Medical Center. He accepts multiple insurance plans.


  • Suny Downstate Mc, Fellowship Hospital — 2004
  • Suny Downstate Mc, Residency Hospital — 2002
  • University Of The Philippines Manila, College Of Medicine, Medical School — 1996

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • Humana
  • MultiPlan

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I have seen Dr. Castro for the past 2.5 years. After having a horrible experience with a Crystal Run endocrinologist, he was a nice change of pace. He takes the time to listen, answers questions appropriately without making me feel less than, unlike many other doctors. He was the 1st endocrinologist in several years to get my thyroid disease in a stable place. Amazing doctor and I highly recommend him!
M — Jan 17, 2022
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Dr. Jonathan Castro, MD
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Frequently Asked Questions

Dr. Castro frequently treats Osteoporosis & Screening, Thyroid Disorders, and Diabetes & Glucose Monitoring.  

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Hospital Affiliations

  • Garnet Health Medical Center
  • Montefiore St. Luke's Cornwall
  • St. Anthony Community Hospital


  1. Practice

    1. 1
      Horizon Family Medical Group
      92 Old Route 9w Ste 200, New Windsor, NY 12553 Existing Patients: (845) 549-1010
  1. Horizon Family Mdcl Grp Endo

    1. 2
      Exodushealth Medical PC
      1200 State Route 208 Ste 15, Monroe, NY 10950 Existing Patients: (845) 549-1010
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(845) 549-1010