About Peggy Chang, MD

Dr. Han-Ying Peggy Chang is the Associate Chief for Regional Operations at Mass Eye and Ear and the Site Director of Mass Eye and Ear, Stoneham. She is a specialist in corneal and external diseases as well as comprehensive ophthalmology. A full-time ophthalmologist at Mass. Eye and Ear, Dr. Chang divides her time between the Comprehensive Ophthalmology and Cataract Consultation Service and the Cornea and Refractive Surgery Service. Her clinical interests include cataract surgery and corneal disease and surgery. As part of the comprehensive ophthalmology service, Dr. Chang specializes in cataract surgery as well as the diagnosis and management of corneal disorders, with a particular focus on tumors of the ocular surface.

Dr. Chang completed her medical training from Johns Hopkins University School of Medicine where she was inducted into Alpha Omega Alpha. While completing her subspecialty training in Cornea, External Disease, and Refractive Surgery at Mass. Eye and Ear, she was named Chief Clinical Fellow and was selected to attend the prestigious Cornea Society Advocacy Ambassador Program, Mid-Year Forum.

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Clinical Interests:

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Languages:

Locations

Mass Eye and Ear
243 Charles St.
Boston, MA 02114
Phone: 617-523-7900

Medical Education

  • MD, Johns Hopkins University School of Medicine
  • Residency, Massachusetts Eye and Ear
  • Fellowship, Shriners Burns Hospital

American Board Certifications

  • Ophthalmology, American Board of Ophthalmology

Research

As part of the comprehensive ophthalmology service, Dr. Chang specializes in cataract surgery as well as diagnosis and management of corneal disorders. Her research interests include bioinformatics and the use of electronic medical record (EMR) systems in data collection for potential large-scale epidemiological studies. She works closely with Partners eCare to optimize this functionality in the current EMR and with the American Academy of Ophthalmology Intelligent Research in Sight registry, the country’s largest clinical registry.

Publications

Reviews: Comments and Ratings

4.9out of 5(272 Ratings, 109 Comments)

March 2025

My experience with this health care provider was very good indeed, as has all my experiences with Mass General, and my husband before me. So apart from that, I have nothing to say. Just carry on being good. Bye now.


March 2025

Dr Chang explained things very well and listened to my concerns.


March 2025

Excellent


March 2025

Excellent care provider. I found Dr. Chang to be very knowledgeable about my problem and able to give me a few options for how to handle it. She talked about these options in detail and she scheduled an appointment with a glaucoma specialist once I had decided.


March 2025

Great experience.


March 2025

She was very kind. She was very knowledgeable and explained things very well.


March 2025

Very good Doctor


March 2025

Dr. Chang was outstanding and professional when it came to addressing my issues and concerns. She was very open and transparent in regards to her analysis and views on my situation. And I appreciated her feedback and response. She is tremendous. Her bedside manners are outstanding.


March 2025

Very thorough, kind, explains things well


March 2025

I have been very comfortable and confident with Dr. Han-Ying Chang, for many years!

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