Sienella Thomaszadeh, DDS Reviews
4.9 out of 5 stars based on 336 reviews on Google.
Demetra Molina (BoozyLife) 路 5 out of 5 stars 路 4 months ago
Her practice is incredible! I have ptsd and neurodivergence (AuDHD) and Dr. Thomaszadeh has been the only dentist that I am comfortable with and trust. She explains everything and is well educated , plus helps her clients as neurodivergent individuals with sensory issues at each appointment. I had not been to a dentist in fifteen years and had a prior root canal that I was suffering with from nerve pain from.
Several appointments later and today I went for my first cleaning visit. I鈥檓 so very blessed that my husband did research and found us the perfect dentist 馃グ
Danielle Bell 路 5 out of 5 stars 路 4 months ago
Dr. Thomaszadeh is so kind, understanding and funny! She made me feel so at ease and comfortable for my filling today. I鈥檓 not a huge fan of the dentist but she is absolutely wonderful and her team is great too!!
Lori Crow 路 5 out of 5 stars 路 3 weeks ago
First class and professional front office staff and hygienists. The office and exam rooms are spotless and extremely clean and comfortable. Dr Thomaszadeh is friendly, kind, caring and spends time with you to address any concerns or questions you may have.
Joanne Smith 路 5 out of 5 stars 路 4 months ago
Dr. Thomaszadeh is great dentist if you have any questions or concerns she listens and explains in easy understanding explanation. Her work is very thorough done right and looks good. Staff is very friendly and welcoming.
Jessica Goudy 路 5 out of 5 stars 路 4 months ago
Love Dr. Thomaszadeh! Her entire staff is incredibly kind, thorough, and knowledgeable and she鈥檚 the best. I鈥檝e had multiple cleanings and work done (crowns, a mouth guard and minor fillings), and every time she鈥檚 amazing!
Reviews provided by Google.
About Sienella Thomaszadeh, DDS
Sienella Thomaszadeh, DDS is a general dental practice in Atascadero, California, serving North San Luis Obispo County. The practice offers a full range of dental services, including implants, as part of a broader approach to helping patients achieve healthy, durable smiles.
The office describes a conservative philosophy built on preventive care, patient education, and working with a network of local specialists. For patients considering dental implants, this means treatment is approached as part of overall dental health rather than a standalone procedure, with the practice's continuing education and established professional relationships supporting the process.
Meet the Doctors
The practice is led by Dr. Sienella Thomaszadeh, DDS, who earned her Bachelor's degree in Biology from the University of California, Los Angeles, and her dental doctorate from New York University College of Dentistry in 2012. She began her dental career as a dental assistant before becoming a dentist, and she has spent time volunteering in dental clinics and community organizations. Dr. Thomaszadeh emphasizes building real connections with her patients alongside providing technical dental care.
