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    John Steven Mastroni, MD

    5.0 (2 reviews)

    Services - John Steven Mastroni, MD

    Eye surgery

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    Humboldt Medical Eye Associates - Day of first surgery, the day I found out I was permanently  blind

    Humboldt Medical Eye Associates

    (17 reviews)

    Dr. Mizoguchi is the best Ophthalmologist, and this office has always been pleasant and…read moreprofessional for the past nearly 30 years I have gone here. Years ago, I saw Dr. Davis here. In another practice, Dr. Gibb is amazing as well, but he is retired now. My Cataract surgeries were a total success last year with the amazingly calm and most professional Dr. Mizoguchi preforming them at Mad River Hospital. With Medicare and Partnership Medical Taxi got me there and back home. Now I can see the TV, the computer print, normal sized print and most restaurant menus without glasses. I can see to drive as well, but DMV small print on the eye test says I need to wear glasses. I did get glasses at Six Rivers Optical (Medicare reimbursed about $120), for small print and to see small street signs in advance. There is a shortage of Ophthalmologists up here. If you are fortunate enough to get an appointment with Dr. Mizoguchi, I highly recommend him. Besides being very nice, he explains everything in layman's terms. Years ago, I was diagnosed with macular degeneration in the dry stage. Keeping it at bay with eye vitamins (Ocuvite plus extra C, plant-based E, melatonin, a variety of organic vegetables, Wild Caught Salmon, etc.) has kept it at bay for 10+ years. Dr. Mizoguchi was shocked to see a Macular Degeneration Drusenoid had shrunk as well. He showed me the blown-up picture showing that. I believe Acupuncture helped too, but we need more studies on this. As far as all these negative reviews, I have never heard of any of those Ophthalmologists at this Humboldt Medical Eye Associates practice. Perhaps I was not paying attention or maybe they have this practice mixed up with someplace else. Everyone has ALWAYS been kind, efficient, and knowledgeable with assistants and the office staff as well. Let's hope we get more Ophthalmologists up here, as Dr. Mizoguchi is taking care of 4 counties. This does not affect his ability to be an excellent surgeon, to be kind to everyone and to give each person the personal care they deserve.

    How does a person end up with a staff infection.now I'm blind and it's nobody's fault?having…read moresurgery after surgery no they can't fix my blindness. Please don't go here. Bl8ndness is permanent. And what they did to me can't be undone. Look me up on Facebook, yes I will answer ALL your questions. I have lots to say but I really can't see good enough out of my GOOD eye to type. Thanks for letting me vent Gloria Erickson

    North Coast Ophthalmology

    North Coast Ophthalmology

    (12 reviews)

    Our family began seeing Dr Mastroni 32 years ago…read more We have had annual glasses check-ups with excellent care by both Dr Mastroni and his technicians. Many years ago my husband had a torn retina and Dr Mastroni arranged surgery for him in Santa Rosa 16 hours later. His vision was saved Both my husband and I have had cataract surgery with Dr Mastroni's clinic with wonderful results: being able to drive again at night and glowing new colors. We have a special needs daughter (who does not speak and is now 62) and both Dr Mastroni and his technicians have given her outstanding care every year. We just had our annual check-ups this week 3/25 with typical exceptional care. We are so fortunate to have such excellent local care. The office staff has always been cheerful, professional and helpful. Dianne B

    I am reading some of these reviews and wondering if they went to the same Ophthalmology office I…read morewent to, because Dr. Mastroni and his staff couldn't be more professional and courteous. His office staff is friendly, smiley, and knowledgeable, and yet they're on the ball and super efficient. I am also incredibly grateful that their office staff was able to get me in so fast. I've had blurring in my right eye, and since I just moved back to Eureka after 30 years in New England, I can't get in with any primary care office. When I noticed the blurring, the only thing I could do was go to the ER. They ruled out a stroke (!! good lord!) and recommended I see an ophthalmologist. They gave me Dr. Mastroni's name, and another guy's name. Since they gave me the other guy first, I tried them. They couldn't see me until January, and said that I needed a referral. Apparently the ER doctor wasn't enough for them. However, Dr. Mastroni's office was super helpful and asked me to call the ER to have them send the doctor's notes, and they could get me in within two days! I am so impressed. I am used to some of the best medical service on the East Coast and being seen in two days is incredibly fast. Dr. Mastroni is intelligent, serious, and attentive. His medical assistants were thorough, and he was careful to show me where the problem was and suggest what we should do about it. He told me that I should "zen out" for a month as the edema looked like something you would see in super stressed individuals, and it could go down on its own. Given I was recently in a rear-end collision that caused a concussion and totaled my car, while also packing up to move across country and say goodbye to my eldest (who is still on the east coast), stress seemed a very likely cause. I did the Zen out, checking my vision on a little square grid thing daily to see if it improved. When I returned a month later, I could actually see instead of having a blind spot, but everything was wavy. Testing showed that my overall vision had degraded, and there was an overgrowth of blood vessels at the back of my eye--at least that's what I remember. Dr. Mastroni showed me the scans and explained what was going on, but I got lost in the details because he said treatment involved needles in my EYEBALL! (I've since found out several friends have had this done--it really doesn't hurt but I was freaking out.) That said, he and his staff were great about reassuring me, even when I said I might run out of the building. I got numbing drops, and while getting needles stuck in my EYEBALL, his staff helped me to look left and keep focusing on their hand while he put the shots into the right side of my eye. They even gave me a little bottle of refresh tears since my eye was likely to feel "gravelly." (It did.) I need to go back in a month. Overall I have been beyond impressed by this office. I can highly recommend it. Unlike the other office in town, North Coast Ophthalmology took me seriously, got me in within two days when I was referred (while the other office in town dug in their heels and said I needed to wait 5 months AND get a referral!), and they are diligent in follow up care. This is going to sound pretentious, but after 30 years in New England, I am used to having access to some of the best medical services in the country. Dr. Mastroni ranks right up there with them. Yes, he is serious and focused--AND he's also really good at what he does.10/10. Highly recommended.

    Gibb Gregory N MD

    Gibb Gregory N MD

    (7 reviews)

    Went to Dr Gibb when another Ophthalmologist in Eureka on Harrison St . Gave me a diagnosis 180…read moredegrees out from his colleague in the same office ... Dr Gibb assured me that I indeed have a fast growing cataract in addition to a normal type in my right eye . And within 2 weeks I had my surgery done , Dr Gibbs is a fantastic surgeon and was highly recommended by my peers... He and his office would get 10 stars if possible

    Dr. Gibb is an amazing Ophthalmologist. First of all, he diagnosed me with the very beginning…read morestates of Macular Degeneration about 10 years ago, and told me to take (at that time 2 Ocuvite/day) to keep it at bay. Macular Degeneration runs in my family. Grandma, Mom, and one aunt who lived long enough to age also had it. They lived independently. Well, Mom and my Aunt lived independently, despite it. My aunt had a big fancy light at the table where she did her business. Giving up driving was very hard for my Mom, but I lived close by and came to take her places on the weekend. During the week when I was working, Mom had a driver, and she learned to take the bus. Low and behold, because of me taking Ocuvite daily for all of these years, my Ophthalmologist I go to the last couple years said my eyes have improved!!! Thanks to Dr. Gibb's excellent care for years and excellent diagnosis equipment and knowledge of what one needs in nutrients to keep the eyes healthy, I have kept Macular Degeneration at bay for all these years. He also scared me from ever smoking another cigarette, having always been quitting, then something making me angry and bumming just one cigarette would get me back in the grip. I don't care if it is true or not, but Dr. Gibb told me in his charming way of talking: "Smoking causes Macular Degeneration" That scared me and made such an impression on me that I have never picked up another cigarette since he told me that years ago. Thank you Dr. Gibb. You are the best!!! Never picking up another cigarette, is helping in other areas of my health too, like being able to breath properly without wheezing and avoiding lung cancer. There are new recommendations from the National Eye Institute I received last year (2022) to continue to keep Macular Degeneration at bay. PreserVistion has the up to date vitamins but they took out the Omega 3 sardines and anchovies out of their formula. Why? Doing the math, I supplement what Dr. Gibb told me back around 2015, with one extra Ocuvite a day than he recommended (3) to get most of the up to date suggestions of Areds 2 Vitamins recommended by National Eye Institute. To make up the rest, I supplement with extra E & zinc, plus eat good food with these vitamins, minerals and omegas. Also good is eating Wild Caught Salmon and other omega providing foods. Researching online, I found all the vegetables that I already eat to get the rest of the vitamins from food. I told the makers of Ocuvite that they need to remove the Titanium Dioxide from that formula; it has been banned in Europe. Please also call to ask them to do that. It is only there for appearance. Who cares what is looks like, if it means potentially harmful chemicals are in our foods and formulas. I can't say enough about how nice Dr. Gibb is. During my very first visit to get my annual check up with Dr. Gibb, they sat me in a room after getting my eyes dialated (drops before exam where they look into all parts of the eyes with advanced technology exam equipment). If I remember clearly, I told the ladies in the room for the same reason I was that this was my first visit. At least three ladies were raving on and on about how much they loved Dr. Gibb, how their Cataract surgeries went fabulously, and that they trusted him completely. That made me feel even more at ease, as I already felt comfortable meeting Dr. Gibb, and always had a good impression in the years following. He was kind and professional, he had a great chair-side manner (upbeat to put one at ease), and he answered all my questions.

    John Steven Mastroni, MD - opthamalogists - Updated May 2026

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