Dean Duncan, DDS

Oral & Maxillofacial Surgeons in San Francisco, California

5.0 (64)

Category	Oral & Maxillofacial Surgeons
Address	99 W Portal Ave, San Francisco, CA 94127
Street	West Portal Avenue
Area	San Francisco, California
Phone	(415) 661-6006
Google rating	5.0 (64)
Source	Google Maps and public records · listed Sep 23, 2026 · updated Sep 24, 2026

Hours

Monday	9 am–5 pm
Tuesday	8 am–5 pm
Wednesday	8 am–2 pm
Thursday	8 am–5 pm
Friday	8 am–4 pm
Saturday	Closed
Sunday	Closed

About Dean Duncan, DDS

Drs. Duncan, Scharf, Patwardhan, Yang, and Tolstunov, offer oral surgery services in San Francisco, CA.

Dean Duncan, DDS is one of the oral & maxillofacial surgeons listed in San Francisco, California. The business is registered at 99 W Portal Ave, San Francisco, CA 94127; use this page to check its hours, phone number and Google rating before you make the trip.

Hours are published for 5 days a week. The most common schedule is 8 am–5 pm. Note that it does not open on Saturday, Sunday. Hours in the United States do change around federal holidays and long weekends, so a quick call before a special trip is sensible. You can reach Dean Duncan, DDS at (415) 661-6006; calling is usually the quickest way to ask about availability, prices or directions. Its website is 7x7oralsurgery.com, where you may find menus, price lists or booking options.

Customers rate it 5.0 out of 5 on Google across 64 reviews.

How Dean Duncan, DDS compares with other oral & maxillofacial surgeons in San Francisco

It has the third-most Google reviews (64) of the 13 oral & maxillofacial surgeons listed in San Francisco.
Its 5.0 rating is the highest among the 7 oral & maxillofacial surgeons in San Francisco with at least 20 reviews (2 others share it).
It shares West Portal Avenue with 2 other listed businesses.
Nearest other oral & maxillofacial surgeons: Lee Oral & Maxillofacial Surgery and Periodontics - San Francisco (0.3 mi), UCSF Oral and Maxillofacial Surgery Clinic (1.6 mi), Bay Area Oral & Facial Surgery (2.9 mi)

Before your visit

Every US dentist and dental practice has a National Provider Identifier; the NPI Registry shows the provider's specialty and practice address.
Ask whether the practice is in your dental plan's network, and for a written treatment plan with costs before crowns, implants or orthodontics.
Ask how the practice handles dental emergencies outside opening hours.

Latest Google reviews

The 5 most recent reviews shown on Google Maps. Reviews belong to their authors; read all of them on Google.

Jean Ryan a year ago

Dr. Duncan and his staff were great. I required much hand holding because I was coming off a horrendous experience with an infected tooth, with the infection spreading to the rest of my mouth. I am sure the implant will go as smoothly as the extraction

Art Fong a year ago

Had a tooth extraction done on my molar. The staff was able to squeeze me in for a consultation with the doctor and even accelerated my appointment because I was going to be out of town for several weeks. The pre-surgery and post surgery videos of what I can expect was really helpful and the extraction process was quick and relatively painless. The follow up call after the surgery by Dr. Duncan was much appreciated and heartfelt! Great customer service!

david Jude Thomas 2 years ago

Dr. Duncan has been taking care of me and my teeth for a decade. I can’t think of any other orthodontist I would allow To work on me. His attention to his practice and his craft is beyond compare. The staff and services go above and beyond to make sure that patients are Cared for in the best way possible. I completely recommend him and 7 x 7.

Olha Ivanchenko 2 years ago

Best oral surgeon! Removed my wisdom teeth here, didn’t have any side effects. All the process was smooth and easy. Dr. Duncan was always easy to reach after surgery and answer all my questions. Highly recommend Dr.Duncan!

Debbie Ramos 2 years ago

Dr. Duncan and his staff gets more than 5 stars! Had to have an extraction and now an implant and he was absolutely the best. Dr. Duncan provided professional quality care, great follow up and always put me at ease. Highly recommend him for any oral surgery. He’s he is truly top notch.

All reviews on Google ↗

Frequently asked questions

Where is Dean Duncan, DDS located?

Dean Duncan, DDS is at 99 W Portal Ave, San Francisco, CA 94127, in San Francisco, California. Use the “Open in Google Maps” button on this page for directions.

What kind of business is Dean Duncan, DDS?

Dean Duncan, DDS is listed as an oral.

What are the hours of Dean Duncan, DDS?

Published hours are Monday: 9 am–5 pm; Tuesday: 8 am–5 pm; Wednesday: 8 am–2 pm; Thursday: 8 am–5 pm; Friday: 8 am–4 pm; Saturday: Closed; Sunday: Closed. It is closed on Saturday, Sunday. Hours can change on holidays, so call before a special trip.

Is Dean Duncan, DDS open on Sunday?

No, Dean Duncan, DDS is closed on Sunday.

What is the phone number of Dean Duncan, DDS?

You can call Dean Duncan, DDS at (415) 661-6006.

How is Dean Duncan, DDS rated on Google?

Dean Duncan, DDS has a Google rating of 5.0 out of 5 from 64 reviews.

Does Dean Duncan, DDS have a website?

Yes, the website of Dean Duncan, DDS is 7x7oralsurgery.com (linked on this page).