Meet Our Dental Providers

Theresa Collins, D.M.D.

General Dentist

Dr. Collins says, “The best parts about being a dentist is helping people, the variety of procedures and esthetic dentistry. I love working with people and watching someone’s self esteem greatly improve after their treatment is completed. I find the most rewarding cases to be patients who have a genuine interest in improving and maintaining their oral health.” She aims to create a welcoming and comforting environment by treating each of her patients like family.

After graduating from the University of Northern Colorado, Dr. Collins received her Dental Degree from the OHSU School of Dentistry. She’s a member of the American Dental Association, the Oregon Dental Association and the Academy of General Dentistry.

Dr. Collins says, “I spend my free time at the gym or outdoors, and love trying out all the wonderful restaurants in this city. I love the music scene in Portland. I also have a passion for nutrition, healthy cooking, and clean eating. I’m an Arizona native who fell in love with Portland while at OHSU. I’m a social butterfly that can make a mean strawberry rhubarb pie (homemade crust is key!), and am very close with my family.”


B.S., Cellular & Molecular Biology–University of Northern Colorado
D.M.D.–OHSU School of Dentistry


American Dental Association Oregon Dental Association Academy of General Dentistry


Bradley Fuller, D.D.S.

General Dentist 

When asked what he enjoys most about his profession, Dr. Fuller replies: “The ability to make a difference in a patient’s health!”
Born and raised in Boise, Idaho, Dr. Fuller received his Bachelor of Science degree from Boise State, and his dental degree from Creighton University. Dr. Fuller completed his general practice residency at OHSU and is a general dentist licensed to practice in Oregon. He is a member of the American Dental Association and the Oregon Dental Association, and he is a Fellow of the Academy of General Dentistry. Prior to joining the Downtown Portland office in 2008, Dr. Fuller practiced at Gentle Dental Gresham for thirteen years.
Outside of the office, Dr. Fuller likes to bundle up his backpack and discover the natural beauty of the Pacific Northwest. He also enjoys skiing, surfing, and golfing.


B.S. – Boise State University
D.D.S. – Creighton University


American Dental Association; Oregon Dental Association; Fellow – Academy of General Dentistry


Madeline Scheidt, D.D.S

General Dentist

Dr. Scheidt says, “I love working with my hands and have always wanted to be a part of improving the oral health of my community. I have many family members in the profession, so I looked at other options but kept coming back to dentistry. I love getting to know my patients and helping them to achieve a wonderful smile!”

After graduating from Concordia College, Dr. Scheidt received her Dental Degree from the University of Minnesota School of Dentistry. To keep up with evolving technology, she’s a member of the American Dental Association and the Academy of General Dentistry.

Dr. Scheidt says, “I Moved from Minnesota to be with my husband who is here in Optometry school. We love Oregon so far! We have a dog named Mick, an adorable, loving, mixed breed pup!” Dr. Scheidt enjoys gardening, sewing, downhill skiing and home brewing.

B.S., Biology–Concordia College
D.D.S.–University of Minnesota School of Dentistry

American Dental Association
Academy of General Dentistry

Tom Wei D.D.S 


Ruben Alcazar, DDS


Dr. Alcazar says, “I really enjoy practicing orthodontics and consider myself very fortunate to have the opportunity to work in a profession that is rewarding to both my patients and myself. The best part about being an orthodontist is the chance of building personal relationships with each patient. Also, I witness every time how the patient’s overall attitude and confidence changes positively as we improve their smiles even before the treatment is completed, and at the end of treatment is just so rewarding to know that in a way we improved the patient’s quality of life.”

Dr. Alcazar is a native of Peru and the son of a dentist himself. He received his Dental Degree from the San Martin de Porres School of Dentistry–both in Peru. He received his Orthodontics Certificate from the Jacksonville University School of Dentistry in Florida. He is a Diplomate of the American Board of Orthodontics and a current member of the American Association of Orthodontics and Pacific Coast Society of Orthodontics. He also speaks Spanish.

Dr. Alcazar says, “I like watching and practicing sports. Tennis, Racquetball, ping-pong and soccer are among my favorites. I enjoy spending time with my daughter and exploring all outdoors activities Oregon has to offer like biking, hiking, kayaking, paddle boarding, windsurfing, camping–as well as traveling and discovering new places.”


B.S.–San Martin de Porres, Peru
D.D.S.– San Martin de Porres School of Dentistry, Peru
Orthodontics Certificate–Jacksonville University School of Dentistry, Florida


Pacific Coast Society of Orthodontists
American Association of Orthodontists Board
Certified–American Board of Orthodontics

Melissa Grant, D.M.D

Dr. Grant is committed to providing comprehensive, quality care with superior long term results. Dr. Grant fulfills all periodontal care and implant services, in a safe comfortable  and caring environment for patients of all ages. She encourages her patients to be involved in their treatment in order to achieve the best results possible, and is always open to questions and is attentive to each person’s needs.
After graduating from Tufts University in Boston, Dr. Grant received both her Dental Degree and her Periodontic Certificate from the Temple University School of Dentistry in Philadelphia, PA.

Dr. Grant is an Oregonian native. She has taught Periodontics at Temple University and the University of Pennsylvania. She recently completed eight years on the Oregon Board of Dentistry.


B.S., –Tufts University in Boston
D.M.D.–Temple University School of Dentistry
Periodontic Certificate–Temple University School of Dentistry


Oregon Board of Dentistry

About Gentle Dental Downtown Portland

Gentle Dental Downtown Portland dentists would like to thank you and welcome you to our office. Our friendly staff and dental specialists are devoted to providing the most comprehensive and cutting edge modern dentistry. Gentle Dental Downtown Portland dentists are held to the highest level of dental care and our staff will take the time to listen to your dental needs and concerns to offer the best dental care to you and your family. Gentle Dental Downtown Portland dentists treat their patients as family and strive to develop long-lasting, trusting relationships with our patients.

At Gentle Dental Downtown Portland, our dental professionals are proud to serve the Portland, OR community and our dentists are held to the highest degree of professionalism, by providing you and your loved ones a comfortable atmosphere with the most state-of-the-art dental equipment, which allows our dental practitioners to stay on the cutting-edge of modern dentistry. Whether you are in need of a regular check-up or looking for a trustworthy pediatric dentist in the Portland city area, our team of dentists and staff will take care of you and your child’s smile. Our dentists are trusted in a wide variety of dental specialties, including cosmetic dentistry, regular examinations, professional cleanings, x-rays, veneers, sealants, fillings, crowns and bridges, teeth implants, dentures, root canals, teeth whitening, and braces and all aspects of general dentistry to make your smile a healthy and radiant smile.

Gentle Dental

1001 SW Fifth Avenue Suite 222
Portland, OR 97204
Call: 503-897-7065
to schedule an appointment today

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Office Hours:

Monday7:00 AM to 5:00 PM
Tuesday7:00 AM to 6:00 PM
Wednesday7:00 AM to 6:00 PM
Thursday7:00 AM to 6:00 PM
Friday7:00 AM to 4:00 PM