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Dr. William Mosier, MD

Dr. William Mosier, MD

Ophthalmology*

Dr. William Mosier, MD is an ophthalmologist in Fullerton, CA. He is affiliated with Providence St. Jude Medical Center. He is accepting new patients.

4.4 Star Rating
Based on 118 reviews 4.4 Star Rating (118 reviews)

Mosier Eye Center

265 Laguna Rd Fullerton, CA 92835

At a Glance

  • Area of Expertise
    Dr. Mosier specializes in the area of Ophthalmology. See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Practices at Top Hospital
    America’s 50 Best Hospitals for Surgical Excellence Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals
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Dr. Mosier's Reviews

Likelihood to recommend Dr. Mosier

4.4
118 ratings, 8 with a written review
5 star
70%
70%
4 star
18%
18%
3 star
3%
3%
2 star
3%
3%
1 star
6%
6%

Your trust is our top concern.

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We have been going to Dr Moiser for a long time
Dr. Mosier has done both my cataract surgeries. He is awesome kind friendly and he knows his stuff.
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Yniguez Irene – Feb 06, 2025
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Extremely knowledgeable. Caring. Organized.
I feel like I chose the right doctor for my routine cataract surgery and if I ever have any trauma or disease to the eye I am definitely going back to Dr Mosier. The office is friendly and caring and very organized. There was plenty of patient education including easy to read handouts if you wanted to go over information again on your own. Dr Mosier is a perfectionist and the patient is well served.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
PAMNM – Aug 24, 2022
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Would not recommend this place to anyone. Took my 2 kids here for their first eye exam with Dr. Kattan. She insisted that the kids had to have their eyes dilated since this was their first exam. When it came to dilating, both my kids did not like the idea of have drops put in their eyes. If you insist to dilate and will not do the exam without it, at least have some patience as they are kids and they will have some resistance. Once my son was done, I was taking my daughter in and she said she is going to take the next patient instead. We waited abut 15 minutes and she came to re-test my sons eyes but gave up and said "I'm done" and "I cant do this". She left the room and the nurse said she will give it a try and was able to do it in 20 seconds. She came out to me and once again said she is done and we are delaying her. She had multiple patients waiting and said she is going to reschedule my daughter.
What went well
  • Office environment
What could be improved
No results
Helpful
Dec 21, 2021
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Known him for decades. Superb ophthalmologist.
What went well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Alan Weinberg – Mar 25, 2021
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Very knowledgeable and caring
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Nov 10, 2020
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Due to covid 19 we had to wait longer, but doctor was very thorough and nice.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
J. T. – Sep 05, 2020
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Dr. Mosier is an excellent physician and I am extremely satisfied with his judgement and his care. I can’t imagine a better doctor. The only problems that I have are the long wait times and an occassional attitude from a few front counter workers. My average time from check-in to walking out the door is over one hour and on two occasions, two hours. When I recommend this practice, I must also accept any negative feedback on wait time. I hope Dr Mosier will adjust patient velocity to benefit all.
What went well
  • Office environment
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
3 others found this helpful
Helpful
Chooseup in Anaheim, CA – Mar 08, 2018
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Dr Mosier was at every step kinder than you could even hope for, and so thorough, knowledgeable and skilled. Bottom-line: I can say goodbye to glasses, the surgery was painless, and the post-surgical care has been excellent. I am a very squirmish patient, and I was terrified of having cataract surgery. I wish I had known that this surgery could be both comfortable and result in perfect vision (clear edges and correct color, but no glasses was a big bonus). As an artist, this was very important.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
6 others found this helpful
Helpful
Fullerton, CA – Sep 28, 2016
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About Me

care philosophy

Welcome to MOSIER EYE CENTER. We are dedicated to providing you the highest quality, most advanced eye care with respect and compassion. Our doctors and staff are specialists in the field of ophthalmology. We offer a wide range of eye care services...read more
  • Ophthalmology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of California Irvine Medcenter

    Residency Hospital
  • Long Beach Veterans Administration

    Internship Hospital
  • Uc-irvine

    Internship Hospital
  • University Calif

    Residency Hospital, 1987
  • University Of Southern California Keck School Of Medicine

    Undergraduate School, 1974
American Board of Medical Specialties®
American Board of Ophthalmology®
Ophthalmology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Spanish

Locations

Mosier Eye Center

Mosier Eye Center265 Laguna Rd Fullerton, CA 92835
1

Affiliated Hospitals

  • Providence St. Jude Medical Center

    101 E Valencia Mesa Dr
    Fullerton, CA 92835
    Recipient of 21
    hospital awards

    America’s 50 Best Hospitals for Surgical Excellence Award™ (2025, 2024)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    America's 100 Best Hospitals Award™ (2023)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    77%
    Patients who gave a rating of 9 or 10

    11% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality