Guillermo Donan Dentistry
Guillermo Donan, DDS:
Practice Profile Page


Guillermo Donan Dentistry
Guillermo Donan, DDS
Fresno, CA













A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 8:00 am to 5:00 pm

Tuesday: 8:00 am to 5:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 8:00 am to 5:00 pm

Friday: 8:00 am to 5:00 pm

Saturday: Closed

Sunday: Closed





Check out what some of our happy patients are saying about us:

Adriana A. from Selma, CA (Source: Yelp)


Dr. Donan and his staff are incredibly AMAZING! As soon as I walked in his office I felt welcome. I absolutely recommend him and give a 5 star! He was able to save my tooth unlike my other dentist who wanted to pull it. Dr. Donan devoted his time and great effort into saving my tooth along with his incredible staff!. I will definitely be coming back to him in the future and will be referring him to family and friends!.. Thank you Dr. Guillermo Donan and Staff!! You guys are amazing.

Gina Marie (Source: Google)


My do and I both see Guillermo Donan. He and his staff are both wonderful and patient. I always have a ton of questions, and Anyone I talk to has been always happy to answer them. I also appreciate the flexibility with scheduling. This team has always been more than accommodating with my work schedule. I will and would recommend Guillermo and his skilled team.

Aj B. from Roosevelt, Fresno, CA (Source: Yelp)


I haven’t been to dentist in a couple of years so I decided I need to make an appointment ASAP. After a quick google search I came across Guillermo Donan’s office and gave them a call to schedule and appointment. They were able to see me relatively quickly to which I didn’t think was going to happen due to COVID but sure enough I was in the office within 2 days. My experience was amazing because the staff was friendly, kind and understanding. They made sure I knew exactly what was going to happen through each procedure and they were patient with me if at anytime I felt uncomfortable or needed a break.

Zoua V. from Fresno, CA (Source: Yelp)


Dr. Donan and his staff were amazing! My first impression at the front with the girls was great. Everyone is friendly and willing to help. I came in to get my teeth filled (tooth binding) because there were various gaps and Dr. Donan gave me different options of what I can do. He delivered to me exactly what I wanted, in fact it was much better than I imagined. To top off everything, I even got a discount for paying all cash! Definitely a 10 star if I could rate that.

Anthony Bobadilla (Source: Google)


I love coming to the dentist… I know a lot of people are scared to get dental work done but I have to say that Dr. Guillermo Donan and the staff are very welcoming and caring. The staff’s main focus is on the patient, making sure that they are comfortable and are in absolutely no pain. Overall they all make a connection with you and make you feel like family so I highly recommend that your next dental visit is with Dr. Guillermo Donan and his incredible staff!!!

Esteban B. from West Fresno, Fresno, CA (Source: Yelp)


Dr. Donan is a very gentle and amazing dentist. Everyone at the office has the attitude where it feels like they actually care about you and how you are doing. The hygienists and doctor are all very gentle when they are doing the procedures and constantly ask if you are doing okay. I would definitely recommend Dr. Donan to anyone and everyone!

Zia C. from Fresno, CA (Source: Yelp)


I’m like everyone else, afraid of going to the dentist but I try to be brave. I’m glad I picked this place. I’m so happy that Dr. Donan and his staff were nice, friendly and attentive. That was important to me, otherwise I wouldn’t be able to put my trust in his team. Dr. Donan took time to explain what kind of dental work I needed and answered any questions I had. He is one of the best dentist I’ve had in a long time. I know I’m in hands when I visit his office. Thank you, thank you. Also kudos to my dental hygienist, Maria at the front desk, Stacey and one other staff member I didn’t get her name for helping me. Thank you for the efficient work, everyone.

Jordan Aguilar (Source: Google)


It is a great place to go. They explain everything with detail and answer all your questions regarding everything. Rosita is the one that did my check up and she is amazing. First she is so nice and heartwarming plus she tells you everything with great detail and does amazing job. Would recommend anyone looking for a great dentist to come here.

Hector G. from Fresno, CA (Source: Yelp)


I’ve been coming to see Dr. Donan for many years now and I will continue to be a patient due to his outstanding service and commitment to constant improvement. All his staff are courteous, helpful and make you feel like family. If you are looking for a reliable and trustworthy dentist in Fresno please consider Dr. Donan. Thank you and God bless you.

Arely R. from Fresno, CA (Source: Yelp)


Dr. Donan and his staff are wonderful! I really love it here & they will help you teeth-wise and financial-wise. My aunt told my mom about this dentist and recommended him to us & we came & set appointments for all of us. They found things our last dentist didn’t tell us about nor we were aware about. The staff here is very nice, professional, and friendly! They will always make you feel welcomed and help you with what you need. I wouldnt go anywhere else but here, so thank you Dr. Donan, Dr. Ehrhardt & staff!

Stephanie Garcia (Source: Google)


Super nice and friendly environment! Dr Donan was very informative and helpful! The nurses were all super helpful and nice! They definitely make you feel comfortable coming into their office as soon as you walk through those doors. Rosita was super helpful and gentle. She was always checking up on me to make sure I was okay when doing my cleaning. She made me feel as if I’ve been here before even though this was my first time! I loved it here!

Senait B. from San Diego, CA (Source: Yelp)


I am so happy that I did the research to find an amazing dentist! I can be a nervous wreck when it comes to the dentist but Dr. Donan and his staff are patient and do a spectacular job! From them moment you walk in and are greeted by Maria, to meeting with the dentist, and leaving, you won’t be disappointed! Nor are you forgotten. I highly recommend.

Georgia M. from Fresno, CA (Source: Yelp)


I’ve been looking for a dentist to establish dental care again. I had a previous dentist with Medi-cal but now that I have a plan through my work I wanted to upgrade to better care. I found Dr. Donan online and they had awesome reviews. I was able to get an appointment right away and from the moment I called to when I arrived, his staff has been friendly, professional and so attentive. Dr. Donan himself was super nice and I did not feel judged at all that I had gone so long without dental care but rather positive that we established a plan to get me back on track. I would definitely recommend to anyone looking for a new dentist, this office is awesome!

Issac T. from Fresno, CA (Source: Yelp)


I’ve had gum bleeding issues for a long time and my previous dentist couldn’t figure it out. I thought it was something else so I went to my doctor and did multiple blood test and everything turned out perfectly fine. So I looked online and was able to find Dr. Donan, he took his time to listen to the issues I was having and was able to resolve it right away! The best customer service I’ve ever experienced. Thank you Dr. Donan and the whole staff here at Dr.Donan!

Stephanie Z. from Oxnard, CA (Source: Yelp)


I found Dr. Donan through google since I’m new to the area . I called to make an appointment as a new patient and gave me one for the next day ! I was so nervous going to a dentist but once I walked in they greeted me as if they knew me , and helped me right away . If you are in need of a dentist Dr. Donan is the perfect one ! Wish I found him sooner and I recommend to everyone!!

Wendy C. from Fresno, CA (Source: Yelp)


Been coming here for a couple years now I hated going to the dentist since I had horrible experiences before but with dr.Donan I got my wisdom teeth removed and recently got braces Dr.Donan has made the process so easy! The staff is always so sweet and helpful! I ALWAYS recommend any of my friends to him !

Rolando Navarro (Source: Google)


Great experience! Plenty of proffesionalism from desk to doctor. Root canal and three crowns. Plenty of medication injected to ensure no pain whatsoever.In and out so I can work in morning and have a late appointment.Unrushed service. Attentive. Staff all are well trained and friendly. Highly recommend .Easy to find online as best in town.

Adriana Avendano (Source: Google)


Dr. Donan and his staff are incredibly AMAZING! As soon as I walked in his office I felt welcome. I absolutely recommend him and give a 5 star! He was able to save my tooth unlike my other dentist who wanted to pull it. Dr. Donan devoted his time and great effort into saving my tooth along with his incredible staff!. I will definitely be coming back to him in the future and will be referring him to family and friends!.. Thank you Dr. Guillermo Donan and Staff!! You guys are amazing.

Dylan M. from San Francisco, CA (Source: Yelp)


I hate just about every dentist I’ve been, every experience I’ve had with other dentist has been not great. And I’ve been to a lot of different dentist. Donan’s office has always made me feel welcomed and at ease and they’re just so kind in general. Donan himself as well as the front office people and specifically Angie! All of them are absolutely wonderful. 🙂 Highly recommend!

Jeffrey S. from Camarillo, CA (Source: Yelp)


I just moved to Fresno about a year ago. I haven’t had a teeth cleaning for a long time so I actually found out about Dr. Donan from my fiancé by which she came here for cleaning. She told me about the place and I decided to get a check up. From my Experience Dr Donan and the staff were really awesome and took care of me really well. I felt comfortable from right when i walked in and I highly recommend this place for people who are looking for a new dentist. If i could give it more then 5 stars I would.

Billy R. from Fresno, CA (Source: Yelp)


I’ve always been afraid to go to the dentist. Not anymore I found the best dentist and staff in Fresno CA!! The care they gave me on my first visit was awesome and they are saving my teeth! I feel very comfortable and they really care about you as an individual. Your missing out if you don’t come and see for yourselves! Thank you Doctor and Staff!

Percy Williams (Source: Google)


I was obviously a little apprehensive about going to the dentist because I had not in a long time! But, fortunately my wife and daughter had found a good dentist. They were very attentive and helpful throughout my deep clean and follow up visit. So, I have a bit of cavities and replacement of a crown which I’ve decided I am going to allow them to do! It has been a good experience to date……

Belen Walvatne (Source: Google)


I was scheduled for a root canal surgery today with Dr. Donan and I was really scared because I personally haven’t had good dentist experiences in the past; especially as a kid. After my tooth got numbed, I honestly didn’t feel a thing throughout the whole root canal surgery, removal of nerve, insertion of post and reconstructionof my tooth. I want to thank Dr. Donan and his staff for the super chill and relax experience. He explained everything he and his assistant where doing so that also helped me stay calm and not panic. Overall, I had a great experience today.

Melissa S. from Roosevelt, Fresno, CA (Source: Yelp)


Im am so happy with my results, Dr. Donan made me cry when he showed me my results of my two front broken teeth he fixed! He is amazing, its like nothing ever happen to my teeth! He is a great Dr. and I highly recommend him, to anyone whi would like to improve there smile or even just for a cleaning, the staff is great, the ladys are welcoming! Five stars Dr. Donan amd staff !!

Jessica G. from Fresno, CA (Source: Yelp)


I have had teeth pain for a long time and my previous dentist wouldn’t help me with my pain. I was searching on google for another dentist because I couldn’t with the pain and called some but gave me the appointment till next month. I just called Dr. Donan and the lady Maria that I talk to made me my appointment the next day Dr. Donan remove one my wisdom teeth really fast felt no pain at all it only took less that 5 minutes.

Vong Y. from Fresno, CA (Source: Yelp)


Dr. Donan & Staff A+ I’m similar to many people out there who have this fear of dentists. I had to suck it up recently due to a tooth becoming loose. Luckily I was able to find Dr. Donan and was able to make the appointment on the same day! I went in and was taken care of throughly. Dr. Donan helped me plan a goal and re-educated me on proper dental health without making me feel ashamed of my teeth!

Brooke M. from Fresno, CA (Source: Yelp)


Dr. Donan is a great dentist that has surround himself with an excellent team. The employees that work there show warmth and concern for your comfort. They also take the time to educate and explain what may be happening that needs to be addressed. I am grateful to have been referred to Dr. Donan by a friend that has been going to him for years. I am certain that it will be the same for me!

Janine Minner (Source: Google)


Had not been to the dentist in over 15 yrs! The entire team here is amazing. I neglected a broken tooth from yrs ago and it started causing severe problems within the last 10 days. The doctor was so kind and explained my options. We did extraction and graft same day! I felt very comfortable and well cared for throughout the entire process. Could not recommend more.

Ashley McComb (Source: Google)


Dr. Donan & the whole team are amazing. 5+ stars, all around. Everyone was incredibly kind, patient, thoughtful, & professional. This was by far the best dentist visit I’ve had. I received a deep clean & two cavity fillings. The whole process was efficient & very comfortable. Dr. Donan, the hygienists, & medical assistants all took the time to explain dental health & preventative procedures/care, & they consistently checked in on how I was feeling while they worked on my teeth & gums. I am so excited to have Dr. Donan & team as my dental health go-to! I will be attending only this practice & hope that others have the privilege of seeing them as well.

Nue L. from Fresno, CA (Source: Yelp)


Found this office in my network provider, read all the positive reviews and decided to make a appointment. I was looking for a non chain clinic that provides quality service. All the staff is professional and welcoming. I did not have to wait long during my appointment to be seen by the staff. The dentist was thorough in explaining all treatments needed. The dental hygienist was really sweet as well, light with the hands when deep cleaning my teeth.  Glad I chose this place to complete all my treatments. Highly recommend if you’ve ben through some bad experiences with other clinics, and you’re currently looking for a new primary Dentist.  I have dental anxiety and I walked out feeling a lot better.

Giovanni M. from Fresno, CA (Source: Yelp)


Dr. Donan and his staff are wonderful. I was nervous at first as everyone is when they come to a new dentist for the first time. But he and his staff made me feel completely welcome and comfortable. Any questions I asked, they explained the answers completely and thoroughly. They made the whole experience easy and I did not feel pressured into doing anything. I got my wisdom teeth extracted and I didn’t feel a thing. I would recommend Dr. Donan’s office to anyone looking for a trustworthy doctor

GaoNou V. from Fresno, CA (Source: Yelp)


I had a few bad experiences from other dentist and it pretty much never want to go back. However, I knew I had to get yearly routine check so I such long and hard and came across Dr. Donan. He had many reviews and told myself I’ll go take a look. The first day I walk in the staffs was so helpful and greeted me smiles and the office was so welcoming! I felt comfortable and dr.donan was so kind and patience with listening to me concern. I’m so thankful I found him and his team! Best doctor ever!

Dean Ortiz (Source: Google)


I had lots of options to choose from when looking for a dentist. I was recommended by a friend, so I decided to try Dr. Donan. I don’t like going to the dentist but this time it was a great experience. The staff is the best ever. They treat you like a friend, a good friend. Dr. Donan is also friendly and knows what he’s doing. Everyone that I encountered here made me feel like smiling all day. I am glad I found the right place. Thank you Dr Donan and staff

Omar A. from Fresno, CA (Source: Yelp)


Dr Donan and his staff provide a very comfortable environment which allows all the work I needed done to be completed with ease. They have excellent friendly service and a variety of payment options to suit every financial situation. They are very good at providing reminders and schedule appointments especially suited to the individuals needs. Highly recommended in the Fresno area.Thanks to all the staff And Drs in the office.