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Eye Health Services This affiliation provides our patients with access to more office locations and ophthalmologists. Our ophthalmologists and optometrists, along with their highly skilled health care teams, are committed to offering you the finest care in a compassionate and comfortable environment. Schedule an appointment at one of OCB Eye Health Services locations!.

Nine locations, and two affiliated Surgical Centers, gives us the ability to provide you a complete range of services from comprehensive eye care to the most complicated medical eye conditions, the ophthalmologists of EHS provide a complete range of services to people of all ages and with a variety of eye health problems.
Services
Founded in 1971 with just five ophthalmologists and three offices, EHS has flourished into the area's premier eye care practice. The practice consists of 20 board certified ophthalmologists with sub-specialty training in Cornea, Glaucoma, Diseases of the Retina, Pediatric Ophthalmology, and Ophthalmic Plastics and Reconstructive Eye Surgery.
Dedicated to upholding the highest standards of the clinical practice of medicine and ophthalmology, Dr. Chang specializes in cataract surgery and the medical, laser and surgical treatment of glaucoma. Dr. Chang is a member of the American Academy of Ophthalmology and the New England Ophthalmological Society.
Reviews (7)
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Alison Harrigan
Aug 06, 2021
I have been going to Dr. Dale Oates for many, many years and I think he's wonderful. Very knowledgeable and kind. I will say that they NEVER run on time and often the wait is long but he is worth it. However, today I had an appointment at 2:45 and arrived at approximately 2:40. After waiting for 45 minutes, I finally went up to the desk and asked how many people would Dr. Oates be seeing before he got to me.

I was told 6 people were in front of me. Talk about overbooking! The patient's time is just as important as the doctor's time and while I understand that it's a good thing that the doctor spend some quality time with each patient, that was just outrageous! I told her I would be rescheduling and could not wait that long. Due to the Covid pandemic and my struggle with cancer, I had already put off my exam longer than I was comfortable with. I intend to reschedule but I would like to be seen within 1 hour of my appointment time, not 3 hours!
Steve James
Apr 22, 2021
Great staff, easy to work with; good at explaining issues. Don't always run on time.
Duckie
Nov 25, 2020
I've been a patient here for over 20 years! Top notch care, customer service is wicked awesome, and Dr. Tanguilig is awesome! Optical center is just as awesome! I wouldn't go anywhere else!
Beverly Saccocia
Mar 28, 2020
Very knowledgeable staff. Great location. Quick appointments.
Bob Tedeschi
Nov 14, 2019
Eye Health Services in S. Yarmouth has terrible customer service. No Contact lens fitting available you need to go to Plymouth. 2 Appointments & 2 days out of work. If you cant provide the service WHY ARE YOU ON CAPE COD, you are useless. You are not the only Eye doctors on the Cape.though you act like you are!
Mary Ryan
Jun 06, 2019
As a new MA resident with a sudden eye condition, the staff and doctors took excellent care to make sure my eyes returned to perfect health.
Kathy Hubby
Mar 23, 2019
We have been patients of Dr. Tanguilig for 20 years and always very pleased with our care