William R Hummer Jr, DDS

San Leandro, United States

4.5

20 reviews

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Telephone:
+1 510-351-5711
Address:
1239 Harrison St, San Leandro, CA, 94577
b/t Callan Ave & Estudillo Ave
Nearby public transportation stops & stations:
0.5 miSan Leandro
2.6 miBay Fair
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Today

Today –
Local time (San Leandro) 03:40 Thursday, 26 June 2025

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Tuesday –
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Thursday –
Friday –
Saturday –
Sunday –

Description

Specialties

Doctors William Hummer and Aileen McCready and their staff are dedicated to providing modern, painless, comprehensive dental care in a caring environment. They enjoy knowing their patients on a personal level and designing a lifelong dental health plan to fit each person’s specific needs. The office uses the most updated equipment and sterilization procedures. Dr. Hummer and Dr. McCready believe that gentleness is the cornerstone of comfortable dental treatment. They are very sympathetic to the fact that many people have issues with going to the dentist, and do their best to put everyone at ease.

William Hummer, DDS is a general practice office and offers a wide range of procedures to patients of all ages. Preventive care plans include cleaning, x-​rays and examinations. Restorative options include composite and amalgam fillings, porcelain and gold crowns, bridges, and full and partial dentures. They also offer cosmetic procedures such as whitening and veneers.

Meet the Business Owner

William H.

Business Owner

Dr. Hummer graduated from Northgate High School in Walnut Creek in 1977. He then went on to attend UC Berkeley. He graduated 1982 with a bachelor’s degree in Physiology. After graduating from UC Berkeley he attended the University of the Pacific and graduated with a Doctor in Dental Surgery degree in 1985. He is president of the California Conservatory Theater Board of Directors, and was President of San Leandro Jaycee’s in 1986. He is the Patrol Leader of the Squaw Valley Ski Patrol, which he loves to do on his free time. He has been a member of the Implant Study Club since 2003 and the San Leandro Dental Study Club since 2001. He is a member of the Southern Alameda Dental Association, California Dental Association, and the American Dental Association.

Nearby

Near this location:
40
ft
Alcala Gloria, MD
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40
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Face Reality Acne Clinic
155 Callan Ave
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Frederick L Humeston, MD
1235 Harrison St
50
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MJC Employee Benefits and Insurance Services
151 Callan Ave Ste 200
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PFN Insurance Services
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Rojas Complete House Cleaning
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20 reviews of William R Hummer Jr, DDS

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Place rating: 5
San Leandro, CA
Great Dentist!!! The staff is very kind and helpful and Dr. Hummer is a gentle and caring doctor. Had a lot of work done and he actually called and checked to see how I was doing. I was also very impressed at the way the staff interacts with each other. Great environment!
Place rating: 5
San Leandro, CA
Hands down one of the best dentist of all time! How do I know this? I was a dental assistant for years so I know quality dentistry and he came into his office at 8:30 pm on a Friday night to re cement a temporary crown back on for me. He is simply the bestest!!!
Place rating: 5
Sunnyvale, CA
I love this dental office! The staff is amazing and you really get the sense that they care.
Dr. Hummer is wonderful! He gets to know you before he starts his exam and learns your treatment style (ex. conservative on cost or get everything done at once). He gave me some great tips to make my flossing more effective.
I was nervous to see a new dentist but I now have the upmost confidence in Dr. Hummer and his staff.
Place rating: 5
Hayward, CA
My husband had a very badly impacted wisdom tooth. Dr. Hummer was able to get out all 4 teeth smoothly, gently, and for a great price. His office was kind and understanding of my husband’s zero level gag reflex.
Place rating: 1
San Leandro, CA
This office is a scam. Make sure you ask them about their charge before ask a service. My husband only had an exam and X-​ray which costed the insurance company to pay about $ 300 and we had to pay out of pocket for $ 65.
Place rating: 5
Fremont, CA
I have been going to Dr. Hummer ever since my parents sent me to him as a teenager, and I have never had a reason to switch. He is the most thorough, kind, and gentle dentist I have ever met in my life. I would highly recommend him and his staff.
Place rating: 5
Beachwood, OH
My teeth have never been in such good shape! Not only is Dr. Hummer incredibly gentle, but he is also more thorough than any of my previous dentists, and is much better at explaining risks, benefits, and why he makes specific recommendations. This has encouraged me to take better care of my teeth — I’m actually flossing every night now! I wish all my previous dentists had been even a bit like him; my teeth would have been much better off!
In addition, his staff is all terrific; they work together seamlessly and are always helpful and cheerful, which reflects on Dr. Hummer as well. My highest recommendation, no negatives whatsoever!
Place rating: 5
San Leandro, CA
Dr. Hummer is the best dentist I have ever been to in my life!!! I have known and been treated by Dr. Hummer for over 20 years. He truly cares about his patients and dentistry. He ensures his patients have top notch, quality care. He takes extra time to ensure every patient is satisfied with their appointments. He is excellent at following up with patients to make sure they are happy with their care. I have never met a more concerned dentist who really takes care of his patients.
Dr. Hummer also makes a point to use top notch dental technology, whether it is to
straighten your teeth, install implants, and so much more! He and his office staff go out of their way to ensure patients are comfortable.
I also love Dr. Hummer’s staff! They are all very upbeat and positive and really make the entire office experience great!
My sister recently moved to Alaska, but refuses to get a new dentist up there because no one could ever replace Dr. Hummer. She comes back down to the Bay Area to visit her family and get her dental work done twice a year.
Dr. Hummer is also extremely generous. He volunteers his time to ensure that many low-​income residents in the Bay Area get high quality dental care. He treats everyone with utmost respect and dignity. Just this past year, he even helped to save the life of a low-​income Bay Area resident who had several seriously infected teeth and could have died from a systemic blood infection, if Dr. Hummer hadn’t stepped in to save the day. He truly cares about people and humanity. All people should have a right to see a dentist like Dr. Hummer. I ask and encourage everyone to patronize the business of this very important man and hardworking team! I would give him and his staff 10 stars if I could.
— Jennifer Lovewell
Place rating: 3
San Francisco, CA
I’ve been going to Dr. Hummer for most of my life. My family has also been long-​standing patients of Dr. Hummer. We have always returned, even after moving out of San Leandro, to receive the custom «small practice» treatment from them. However, Dr. Hummer has recently undergone new management and it shows. It feels like his office is being run as a business and we are all just numbers in the books. The front desk in particular has a very harsh approach to managing the patients. What used to happen «before» is disregard and not tolerated. For example, I never paid a «co-​pay» and waited for the itemized invoice before paying. However, I was not allowed to do that today and had to pay upfront. News to me! I will continue to go to Dr. Hummer because i appreciate his tenacity and I have always had a good experience with the dental hygienists. But there is a new «tone» to the office that is a major disappointment.
Place rating: 5
Oakland, CA
Dr. Hummer has provided excellent dental care to many of our Western Service Workers Association members, who are low-​income bay area residents who cannot afford preventative dental care due to socioeconomic circumstances. Not only is Dr. Hummer kind enough to donate his time and skills to our WSWA benefit program, but our members rave about his caring manner with which he provides his thorough dental care. He would call back to our office to make sure that our members were satisfied with his care. We can’t thank Dr. Hummer and his staff enough for providing this critically needed service!
Dr. Hummer’s commitment to and care for his community shows that he is a paragon of ideal health care provider. We highly recommend this great dental practice!
Place rating: 1
San Leandro, CA
I used to be a patient of Dr.Hummer. The dental assistants not so great. My daughter told one that there was marks on her teeth and was told it was nothing. X-​rays were done also at that visit. Dr. Hummer didn’t look at my daughters teeth and when we went back 6 months later she needed 7 fillings!!! My daughter had regular cleanings and only one or two cavities before that. As for me I wasn’t as good about going regularly, except within six months of going and getting x-​rays I was told my tooth was dead and I needed an implant!!! How do they take x-​rays and say everything is good and all these things pop up within six months? All of my fillings done here have needed to be replaced. The whole place needs to be updated. The dental hygienists I had annoyed me. One was eating yogurt as she greeted me, yuck. The other one (really old) didn’t stop talking even after I told her I had to get back to work. The receptionist and the woman who assists the dentist are cool. Why am I writing a review if I am no longer a patient? No matter how many times I have told them we will not be coming back, they continue to call me and send me reminders in the mail. It has been almost 3 years and they contacted me again this week! Dr. Hummer is a nice guy and seems to care, but will never touch my teeth again. So maybe now when they see this review they will FINALLY listen to me when I say we are never ever coming back!
Place rating: 5
San Leandro, CA
I had a crown put in by another dentist and I needed a root canal. My other dentist told me that I had to go to a specialist because they would need to go through the crown. I wasn’t too happy that I needed to go somewhere else.
I decided to get another opinion. That’s where Dr. Hummer comes into play. After the consultation and a couple of X-​rays, Dr. Hummer told me he would be able to do it.
I had the root canal yesterday. He is very gentle. And very informative. I feel so much better that I had this done and I couldn’t ask for a better dentist.
Thanks Dr. Hummer!
Place rating: 5
San Francisco, CA
My Fiancé has been going to Dr. Hummer for a few years. We originally found him through our insurance provider and were really impressed with him on our first visit. He is knowledgeable and professional. But, the reason I wanted to write this review is because of his amazing staff, specifically Debbie. My fiancé had moved jobs and then his new company switched insurance groups. We were getting confusing bills and couldn’t get any clear answers from the insurance groups (typical). After some back and forth with Debbie, she tracked down what the issue was (including spending an hr. and a half on the phone with our former insurance group). She helped us finally get the issue resolved and we were really grateful. Great dentist and wonderful staff.
Place rating: 5
Oakland, CA
I cannot say enough good things about this dentist office. From the beginning, as I waited in the waiting room, I was greeted by several warm and friendly staff members.
I am 7 months pregnant and was having some pretty significant tooth pain yet suffice it to say, I hadn’t been to the dentist in a pretty long time (ewww, I know). I knew since I was pregnant, there was limited options as to what could be done. Immediately, Dr. Hummer came out and educated me on dental work and pregnancy. He was professional and well versed in the subject and made me feel comfortable that I was making an informed decision to have my teeth worked on.
My tooth problem was remedied quite easily with minimal discomfort. This place is truly amazing and I am so glad I found them.
Place rating: 5
San Leandro, CA
outstanding job once again. I had some minor issues which needed to be fixed. No antistatic, no pain regardless. he made me feel so relaxed i had to keep myself awake. I can not recommend Dr. Hummer enough.
Place rating: 5
San Leandro, CA
OMG I had a horrible visit with my last dentist, so I tried someone new. I called Dr. Hummer office one morning and they saw me the same day. He explained every part of the process, informed me about other problem teeth I had. He was knowledgeable and patient. He understood money was an issue and gave me the best advice. I walked out of his office pain free with a smile on my face. (that has never happened before) I would recommend him to anyone looking for a dentist. He is the best!!!
Place rating: 5
San Leandro, CA
Thank goodness for Dr. Hummer! How lucky am I to find the best dentist ever before I lost my teeth and my mind.
Place rating: 5
Oakland, CA
Thank you, Dr. Hummer!
I had an epic journey/​battle with a root canal-​starting at UCSF endo school (NOOOOOOOO! Don’t go there!), and ending in the loving hands of Dr Rezai to finish it (If you need an endodontist, look no further than him!). But this isn’t a story about other dentists. It’s about Dr. Hummer.
He’s gentle, knowledgeable, patient with anxiety, kind, and most of all, does GREAT WORK! I took my sore mouth to him for my post-​root canal crown, and he fixed it! He explained the whole process and set expectations for me, so I wouldn’t be surprised or scared (well, less scared). I got the temporary crown, fitted for the permanent (gold! Fancy and better for your body than any other material!) crown.
I returned a couple weeks later for my permanent crown, and it fits like a dream! I love it, and it is SO nice to know I don’t have to deal with that particular saga anymore. Plus, if the apocalypse hits, I have currency in my mouth. So there’s that.
Thank you, Dr Hummer– for your caring, careful work. For the calls to check up on me (I’m doing much beter, thank you!), and thank you for the grape custom chap-​stick with your office’s information on it. It helped in the middle of the procedure, and every time I use it, I remember that extra touch. I’ll be back!
Place rating: 5
Walnut Creek, CA
My late mother, my husband and I have been going to Dr. Hummer since 1997! He is wonderful, smart, patient and extremely detail oriented dentist. Prior to us moving to the East Bay we would drive from
San Francisco to be treated by him.
We would highly recommend him and his staff! A++++++
Place rating: 5
Oakland, CA
I have rated another dentist here and while he is awesome I would like to give a recommendation to the East Bay peeps I know:
Dr. Hummer is no fucking joke.
Why? Oh well it’s Sunday, middle of the day on a perfect 74º East Bay day. Not a cloud in the sky… Dr. Hummer was probably sailing, or golfing, or even saving small kittens from fire. Me? Me, well, I was saving my manpanion from the most debilitating pain I’ve ever seen him in my entire knowing of him. His tooth? It exploded. I mean, not really EXPLODED… but it might as well has…
So for months I’ve been carrying around this Dr.‘s number. So I call the phone number… fully understanding that I would be getting a machine — cause hello? Sunday? So the machine says «in case of dental emergency call xxx-​xxx-​xxxx» I look over at manpanion, back at phone, back at writhing manpanion. Yeah, it’s an emergency. I call. I get Dr. Hummer on the phone. I say «Hey doc, I’m referred by such and such patient… you don’t know me but my manpanion is in bad shape.»
Long story longer it’s Sunday and Doc stops saving kittens to drive to his office to give an emergency root canal to my man. As a former dental assistant I can tell you something: His work is really good. He allowed me to inspect the drilled tooth with the calcium filling the emptied root cavities. The hole was impeccably drilled with great symmetry. Manpanion (he who hates all dentists everywhere all the time) said it was the best experience he’d ever had.
Doc explained all our options and as non-​insurance carrying patient (s) he advised what he could do for us in order to maintain best dental health and easing our wallet pain.
This man is awesome. He got a patient for life from both of us… I can’t speak more highly of this dentist.