Discover personalized dental care in the heart of San Francisco.

3003 Fillmore St. San Francisco, CA 94123

Primary Line

(415) 346-9173

Secondary Line

(415) 346-9174

Open Hours

MON
8:40 AM - 5:30 PM
TUE
8:40 AM - 5:30 PM
THU
8:40 AM - 5:30 PM
FRI
8:40 AM - 5:30 PM

Conservative, Aesthetic, Patient-Centered

modern Dentistry in San Francisco

Welcome to Union Fillmore Dental, where your smile is our priority. Led by Dr. Marianna Rexan, we focus on providing minimally invasive care that preserves your natural teeth and enhances your smile. From Bioclear restorations to Invisalign, we offer advanced treatments in a comfortable, patient-centered environment. Our mission? Creating a positive dental experience for every patient, every visit.

Expertise You Can Trust

Meet Dr. Marianna Rexan

Dr. Marianna Rexan combines years of training with an artist’s eye and a scientist’s precision to deliver world-class dental care. A graduate of the prestigious UCSF School of Dentistry, she specializes in minimally invasive treatments like Bioclear restorations and Invisalign. Known for her gentle approach and commitment to continuing education, Dr. Rexan ensures each patient receives tailored care in a welcoming environment. Learn more about her dedication to transforming smiles in San Francisco.

See what people are saying

Dr. Rexan and her staff are amazing. I have many dental issues and they constantly take care of my needs.

Justin P.

Warm and welcoming office! Very thorough with explanations and cleaning. I am scared of the dentist, but they made me feel comfortable and relaxed. Thank you!

Cynthia

I see Dr. Rexan for both cleanings and just finished my Invisalign treatment with her! The staff is wonderful and welcoming and really helpful with all things scheduling - Invisalign required multiple appts, and they always worked around my schedule. Dr. Rexan is thorough, competent, kind, and my teeth have been in wonderful shape since I started seeing her!

Lizzie S.

I had such a great experience with my Invisalign with Dr. Rexan and the Union Fillmore Dental Team. She and was thorough, kind and incredibly helpful and supportive throughout the process. And my teeth look better than I ever thought possible! The entire team is has been amazing to work with, and very flexible as well. Thank you so much!

Emmy W.

A dentist you can trust! Dr Rexan is excellent. She doesn’t push unnecessary treatments or scare tactics. I feel safe and well cared for in her hands. So happy to have found a great dentist in SF!

Neekaan O.

Featured Services

Invisalign

Straighten your teeth discreetly with Invisalign, the clear aligner system designed to fit seamlessly into your lifestyle. Under Dr. Rexan’s expert care, you can achieve a straight, healthy smile without relying on traditional metal braces.

Bioclear Composite Restoration

Preserve your natural teeth with Bioclear, a revolutionary alternative to crowns and veneers. This minimally invasive treatment offers durable, beautiful results while saving your natural tooth structure.

Veneers

Achieve a brighter, more youthful smile with custom-crafted veneers. These thin porcelain laminates deliver stunning results and long-lasting durability for patients seeking a true smile transformation.

New Patient Special

Make your first visit a breeze with our comprehensive new patient package. This special includes a professional cleaning, a full oral exam, and state-of-the-art digital X-rays and scanning. Perfect for setting the foundation for a lifetime of great oral health.

Professional Cleaning

Comprehensive Exam

Digital X-rays & Scan

Why Choose Us?

The Union Fillmore Dental Difference

At Union Fillmore Dental, we redefine the dental experience with advanced care, personalized attention, and a minimally invasive philosophy.

Minimally Invasive Approach

We specialize in preserving your natural teeth through conservative treatment techniques, like Bioclear, ensuring long-lasting results without unnecessary procedures.

Advanced Techniques & Technology

From iTero digital scanning to laser diagnostics, our advanced tools make your treatment faster, more precise, and more comfortable.

Personalized Care

Every patient is unique, and we take the time to tailor your care plan to your individual goals, ensuring a comfortable and effective experience.

Conservative, Aesthetic, Patient-Centered