JOHN CHANG, M.D.
AESTHETIC DENTISTRY OF ROCKLAND COUNTY
Functional Medicine MDs
Functional medicine approach to identifying root causes of chronic health issues.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- Rutgers R W Johnson Medical School (cam/New Bruns/Pisc)
- Graduated
- 1998
- Medicare specialty
- Ophthalmology
- Group practice
- Maria Spinak, MD, PC · 2 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked August 2026.
About
Dr. John Chang practices functional medicine in Pearl River, offering a systems-based approach to diagnosis and treatment that looks beyond symptoms to underlying causes. He works with patients managing chronic conditions, metabolic dysfunction, and those seeking preventive wellness optimization through detailed assessment and personalized protocols. His practice emphasizes lab work, nutritional medicine, and lifestyle modification as primary therapeutic tools. Most visits are cash-based, though he can provide documentation for potential insurance reimbursement depending on your plan.
Areas of Focus
Specialties
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