Dr. Marshall L. Wallace, DMD, MHS

3 Professional Ct, 29150, Sumter

Dr. Marshall L. Wallace, DMD, MHS, is a board-certified periodontist and dental implant surgeon serving the Sumter, South Carolina community with over 35 years of distinguished experience. Located at 3 Professional Ct, Dr. Wallace’s practice is dedicated to providing compassionate, high-quality care for patients seeking solutions for gum disease, tooth loss, and aesthetic dental concerns. As a trusted expert and member of the American Academy of Periodontology, he combines advanced 3D dental imaging technology with personalized treatment plans to ensure optimal oral health and lasting results.

Our comprehensive services are designed to restore your smile and confidence. We specialize in dental implants, offering a durable, natural-looking solution for missing teeth that preserves jawbone integrity. For patients battling periodontal disease, we provide effective treatments at every stage, from deep cleanings (scaling and root planing) to surgical interventions, aiming to halt progression and restore gum health. Additionally, Dr. Wallace performs sinus grafting procedures to prepare patients for successful implant placement and offers tooth extractions and implant-supported dentures with a focus on patient comfort and minimal downtime.

At Dr. Wallace’s office, we believe that comfort and communication are just as important as clinical excellence. Our caring team ensures a relaxed environment where your specific needs are met efficiently. Whether you require cosmetic periodontal surgery or routine hygiene care, you can trust Dr. Wallace to deliver the exceptional care you deserve. Contact us today at (803) 469-9461 to schedule your appointment and take the first step toward a healthier, radiant smile.

Opening hours

  • sunday: (closed)
  • monday: 7:30-12:30, 14h-17h
  • tuesday: 7:30-12:30, 14h-17h
  • wednesday: 7:30-12h, 13h-16h
  • thursday: 7:30-12:30, 14h-17h
  • friday: (closed)
  • saturday: (closed)

Photos of Dr. Marshall L. Wallace, DMD, MHS

Dr. Marshall L. Wallace, DMD, MHS

Dr. Marshall L. Wallace, DMD, MHS: Reviews

5/5 (265 Reviews)

Reviews are the opinions of their authors. We do not verify that the author was a customer.

Reviews on Google

5,0 out of 5 from 265 reviews

Michael Buero Published on Google

Fantastic experience: Made me feel comfortable about an uncertain situation

Sharon Macias Published on Google

Fantastic experience: Wonderful staff. Great dentist.

Nancy Price Published on Google

Fantastic experience: I have been going here for a very long time never been mistreated always answered any questions that I had very nice if your appointments at 10 they’re taking you in at 10 I would recommend Them to anybody

Alfieri Alamo Published on Google

Fantastic experience: Excellent service; very friendly and communicative.

Kathy Rollins Published on Google

Fantastic experience: Quick, knowledgeable and efficient. Their hygienists and office staff also deserve kudos.

Jim Moore Published on Google

Fantastic experience: Very professional and courteous.

Joe Nemedy Published on Google

Fantastic experience: Visit was explained in detail so I had complete understanding of the procedure.

Jeanie Sabbagha Published on Google

Fantastic experience: The whole office is very professional and make sure that you are comfortable.

Mr_Scat392 Published on Google

Fantastic experience: The entire staff from receptionist to dental tech should be commended. Staff very friendly and helpful .

Pepper “Pepper” Haynes Published on Google

Fantastic experience: I have been going to Dr. Wallace's office every 8 months for almost 30 years now. He and his staff have always been friendly, helpful, professional and even compassionate if an uncomfortable procedure should have to be done. I trust them.

Takayes Rock Published on Google

Fantastic experience: Very professional Setting, friendly and courteous staff. Would definitely recommend.

Don White Published on Google

Fantastic experience: Visits to Dr. Wallace's office are always met by smiles, dedicated and knowledgeable staff and a welcoming atmosphere. If a trip to a dental office can be deemed pleasant, then my visits to Dr. Wallace's office are always a pleasure. He has been my dental specialist for well over 30 years. He's the best!

loraine trail Published on Google

Fantastic experience: Fantastic dentist. My dental hygienist is wonderful. She makes sure you’re comfortable and is very gentle while cleaning your teeth. Highly recommend

EM Rivera Published on Google

Fantastic experience: This office provides a relaxed and professional atmosphere. Excellent communication and very accommodating with scheduling . Thorough in the explanation of what’s needed and time frames . Also went over procedures and costs . Very satisfied. I recommend.

Thomas McElveen Published on Google

Fantastic experience: Dr. Wallace is a good man and he and his staff are all consummate professionals. It was an easy decision to trust them with my dental care.

Pattie Sinner Published on Google

Fantastic experience: Dr Wallace and his staff were great! I will be going back to him for my procedure! And recommend anyone I know to him. Thank you all for your help and understanding.

Tommy Bultman Published on Google

Fantastic experience: I’ve been a patient of Dr. Wallace for over thirty years and he and his team have provided excellent dental care!

Caroline Hardesty Published on Google

Fantastic experience: Dr. Marshall Wallace, was very professional and knowledgeable, I would recommend him to all my friends and family!

Richard Young Published on Google

Fantastic experience: My 1st visit and I am impressed. Already a plan established and dates set. Thank you !!

Brenda Early Published on Google

Fantastic experience: My experience with Dr. Marshall L. Wallace was very pleasant. He discussed the recommended treatment plan with me and I wasn't pressured to do anything, but rather was given time to consider how I wish to proceed. I would recommend this office to anyone in need of their services.

ruth white Published on Google

Fantastic experience: Very professional, Great attitude towards me and was seen on a timely basis. Very personable as well

Roslyn Johnson Published on Google

Fantastic experience: Each visit I'm comfortable and relaxed. Feels like a visit with family.

Gail Carregal Published on Google

Fantastic experience: Everyone was very friendly and kind. Everyone was very professional and Dr. Wallace was knowledgeable and helpful with my concerns and fear.

Susan Visentin Published on Google

Fantastic experience: Fantastic staff! Questions answered and reassuring. It feels good to have clean teeth again! Thank you everyone. Happy holidays! See you next year!

Mimi Wrobel Published on Google

Fantastic experience: Dr Marshall was highly recommended as a specialist in implant placement, and I was very impressed by his knowledge and ability to explain what I needed to understand. He is also very personable and down to earth, and I would recommend him without reservation.

Calvin Price Published on Google

Fantastic experience: Everyone at Dr.Marshall Wallace dentistry was very polite and friendly. Dr Wallace is easily the best dentist i have ever had. The entire team is a very awesome bunch. An enjoyable experience today.

Bud Lavanish Published on Google

Fantastic experience: I liked Dr. Wallace very much...If I go ahead with any procedure it is because he impressed me

Dawn StJohn Published on Google

Fantastic experience: Dr. Wallace and his staff were amazing. He explained everything very clearly and what all my options were for the issue I'm having. I'm looking forward to my next visit.

Victor Hannon Published on Google

Fantastic experience: I have been a patient of Dr. Wallace for 10 years. Every visit has been a very pleasant experience. The Staff is very friendly and efficient.

Vicki Dorak Published on Google

Fantastic experience: Always the best at what they do. From the front desk receptionist to the dental hygienist, to the Dentist Dr. Wallce.I have been very pleased. I have recommended this practice to many people. If your in need of a Periodontist, don't hesitate to contact this facility.

Gloria McDonald Published on Google

Fantastic experience: He is very thorough. Excellent.

Georgette Perry Published on Google

Fantastic experience: Dr. Wallace is top tier! He's very kind and provides the best care. He and his staff... especially Ms Julie, are awesome! Ms. Julie is my preferred tech at this office as she's the most cAring, compassionate tech I've met in a long time. She's sooo calming ( anybody that knows me, KNOWS how much I hate going to the dentist). I appreciate her taking her time with me and helping me alleviate my worries when I come for care.

Roger Baynard Published on Google

Fantastic experience: Dr. Wallace and his entire staff are true professionals. Everyone is courteous and helpful. Superb customer service.

Deborah Sage Published on Google

Fantastic experience: Update: Had cleaning appointment today and set up appointment to have the other side of my mouth done with the deep cleaning. Everyone there is so nice and helpful and caring! Dr Wallace and Julie took very good care of me today! I’m gonna need some work done and Dr. Wallace explained the procedure to me and had the young lady at the front desk get an estimate to see what my insurance would pay. I felt very comfortable and very cared for. Highly recommend him, Julie and the staff!

Herb Leaird Published on Google

Positive experience: Good,dated, I am 87 so that’s what I perfer

Elizabeth Rhodes Published on Google

Fantastic experience: I love Dr. Wallace and all of his staff. I have been his patient since 2018 and have always received excellent care. I totally trust their recommendations for the good health of my teeth and gums.

ivy Published on Google

Fantastic experience: When I first got there I was greeted by a very friendly staff. That was nice. The appointment was on time which I appreciate because I consider my time valuable also. Then when I got in the back with the doctor he explained his process to me which was nice and told me he would do the exam and then we would decide the treatment plan. He took his time and answered all my questions he was very friendly and professional. Kudos to him and his staff

Angela Taylor Published on Google

Fantastic experience: I have been a patient of Dr. Wallace for many years He is an excellent periodontis. He also has a great staff.

Sarah G. Published on Google

Fantastic experience: I love Dr. Wallace. He's patient, kind, and always ready to address questions and or concerns. His staff,likewise, is kind and considerate. Excellent service without extensive waiting. You get what you pay for!

Bryan DuRant Published on Google

Fantastic experience: Always a great visit. Everyone is very kind and helpful. Dr. Wallace is a fantastic Peridontist.

Laura Published on Google

Fantastic experience: Dr. Wallace and all the staff i interacted with while I was there were all very professional and kind. He allowed me to ask all my questions and gave amazing feedback. I would definitely recommend going to see him for any dental issues.

Amyra Wiley Published on Google

Fantastic experience: Great job no down time on schedule and ready to work.

Harold Garrett Published on Google

Fantastic experience: Christy is always concerned if I have any discomfort and strives to make my visits very pleasant. She's a pro from the get go. I thoroughly appreciate all she has done for me. Dr Wallace always provides the friendliest patient care. Thanks to you and your whole staff!

lisa borgsteede Published on Google

Fantastic experience: Very patient with my nerves and emotions on a FIRST periodontal appointment.

mike avery Published on Google

Fantastic experience: Only complaint is that they stop taking my insurance after 23 years of taking it. Now I have to pay and get reimbursed from the insurance company. But they do file it for me. Dr. Wallace is great and so is his staff.

J Com Published on Google

Fantastic experience: Doctor and staff were very professional, and friendly. (Very comfortable).

Stacey Archie Published on Google

Fantastic experience: Amazing staff very professional always good to me I have been going here for years never had a bad experience. Treat me like family since day one, I will always support them.

Lucille Cummings Published on Google

Fantastic experience: Great experience and excellent Customer Service starting with the Receptionist at the front desk who thank me for being early to Dr. Wallce and his team who took the time to attend to my needs and I thank you for that and for accepting me as your patient . Also, thank you Dr. Wallace for your call to check on me to see if I was alright after procedure. Great Service!!!

sandi jones Published on Google

Fantastic experience: During my recent visit Julie was very gentle as always. Dr. Wallace is very kind and considerate.

Is that crazier .763900 Harling Published on Google

Fantastic experience: Very relaxed but professional at the same time all were very friendly definitely going back

Teresa Colclough Published on Google

Fantastic experience: Dr. Wallace and his staff are exceptional.

Debbie W Published on Google

Fantastic experience: Loved the staff and Dr Wallace Straightforward which I like and to the point!

Elaine Secrist Published on Google

Fantastic experience: Dr. Wallace is amazing! Many trips to him and all procedures have been perfect!

JOYCE BILTON Published on Google

Fantastic experience: Dr Wallace and his staff are my favorite. He has been taking care of me for over 30 years

Eddie Gleaton Published on Google

Fantastic experience: If you’re considering dental implants look no further than Dr. Marshall L. Wallace. Dr. Wallace and his staff provide service that is absolutely unsurpassed in professionalism and quality. This service is delivered with the most delightful degree of courtesy and respect.

Judy McDonald Published on Google

Fantastic experience: Dr Wallace and his staff explained in detail the procedure I was going to have. They were professional, yet caring. All instructions for my after care was explained to me in great detail. I would absolutely recommend Dr Wallace to anyone needing his services.

Michael Cotterman Published on Google

Fantastic experience: It was such a pleasure meeting Dr. Wallace and his staff, they treated me like a person I highly recommend all my friends to Dr. Wallace

carletha addison Published on Google

Fantastic experience: I was seen promptly and the staff was friendly, competent in their work and caring.

John Beck Published on Google

Fantastic experience: Very respectful and patient and to the point about the process. I was relaxed and I could understand the procedure.

Earl Reese Published on Google

Fantastic experience: My experience was GREAT! Dr Wallace took the time to his philosophy on treatment which made me feel reassured that I'd get the best treatment possible without unnecessary procedures or unwarranted expectations. And his staff was wonderful...made me feel they truly cared! These folks are caring while having an iron clad grasp on what can be done and what needs to be done

Frosty Pollard Published on Google

Fantastic experience: Super nice, fabulous customer service and a pain free experience. My kind of service.

Jasmine Matterson Published on Google

Fantastic experience: Julie usually does a good job. She explained each step in the procedure and took pains to ensure my comfort. Dr. Wallace showed genuine concern for my overall dental health, as usual.

Theresa Kelly Published on Google

Fantastic experience: I have been a patient to Dr. Wallace for some years now. And every time I go the office, it's always clean and welcoming. The staff greets you with a warming smile.

Lance Towery Published on Google

Fantastic experience: Dr Wallace is the consummate professional. He and his staff truly care about their patients and the quality of care they deliver.

todd mcdonald Published on Google

Fantastic experience: Very friendly staff! Dr. Wallace is a really down to earth gentleman with an authentic, caring demeanor. They take good care of their patients

Fred Moore Published on Google

Fantastic experience: I trust Dr. Wallace and dental hygienist Barnes to take care of my teeth. Very friendly too.

Mike Puck Published on Google

Fantastic experience: Had a great consult today with Dr. Wallace!! Quick simple and informative. 5 minutes max in the waiting room and then on to the consultation. A little poking and prodding and then took the time to ensure all my questions and concerns were answered. Hope the actual procedure is that smooth!!

darrell dobbs Published on Google

Fantastic experience: Very professional and super friendly, the entire staff, and Dr Wallace was happy to answer any questions. Just a great visit!

Lloyd Published on Google

Fantastic experience: Dr. Wallace is a very skilled and professional dentist. He repaired my # 12 tooth implant that was done by another dentist and save me 5,000. Dollars so I can use the implant. I highly recommend Dr. Wallace for any one who is able to get an implant. Thank you Dr.Wallace.

James Fulcher Published on Google

Fantastic experience: Very helpful advice and concern with working though a particular difficulty I’m dealing with.

RICKY Nelson Published on Google

Positive experience: Provide excellent service, and explain every detail to you. Recommend to anyone who needs a dentist.

Gloria Scott Published on Google

Fantastic experience: 01/06/26 ⭐⭐⭐⭐⭐ Dr. Marshall Wallace is caring, professional, and very knowledgeable. He and his staff take the time to explain what’s going to happen, which really puts you at ease. He even calls to check in after procedures, which shows how much he truly cares about his patients. I highly recommend him if you’re looking for a periodontist that knows what he’s doing.

James Gardner Published on Google

Negative experience: I used my last vacation day to have my dental procedure. And they called and cancelled my appointment. Now I'm out of my deductible and my vacation day for the year.

Marlise Guillerault Published on Google

Fantastic experience: He did a fine job. It’s smooth and healthy and I have had almost no pain. Discomfort handled with Tylenol is a winner!! Many thanks!!!!!! I wrote this several months ago after th extraction. I had my final check and referral back to the regular dentist and I second the the first comment which I forgot to send. He did a great job- little pain or discomfort except that thing that takes X-rays. I recommend Dr. Warren’s staff as well as him!

Marguerite Wilder Published on Google

Fantastic experience: Dr. Wallace and my hygienist Julie are always very friendly, efficient and professional. I have entrusted them with my oral hygiene for many years.

Chris Rouse Published on Google

Fantastic experience: The hygienist, that work with me and did my deep cleaning was the best I ever had honestly. The reason I said it, is because I never felt not one needle when she numb my gums. That’s a first for me any where else is always discomfort. Thanks again for everything!

henrietta burton Published on Google

Fantastic experience: My visit is always pleasant despite the fact that dental work is not my thing. Dr Wallace and I have been together since the mid 80s. What a fantastic Dr. he is! Keep up the good work, Dr.

Melissa Gurney Published on Google

Fantastic experience: Always very friendly and professional. No long wait - always on time. I'm no fan of going to the dentist, but I've never been anxious going here. Nothing but great things to say about Dr. Wallace and his staff.

Deborah Chan Published on Google

Fantastic experience: Dr. Wallace and his staff are extremely personable, ensuring that I am comfortable and pain-free. I have been a client for many years and have never considered finding a different periodontist even though I live 50 minutes away.

Brenda Mace Published on Google

Fantastic experience: Dr Wallace knows what he is doing. He is confident in the outcome and that gives a reassurance. Fast and painless. His assistants are all as professional as he is.

Carol D Smith Published on Google

Fantastic experience: Ronnie Smith is the patient. He is very happy with the service of Dr Marshall. He is very professional and very caring Doctor and his staff is also wonderful.

JATNE Publishing Published on Google

Fantastic experience: Unfortunately had two issues. However, Dr. Wallace did an exemplary job and I’m pleased to say the healing process is going well. The cost is significant but the outcomes make is cost-edfective.

Flora Gadson Published on Google

Fantastic experience: I always receive prompt and professional service from Dr Wallace’s staff. The office and personnels carry a people friendly atmosphere. I would recommend his business to anyone .

Debbie Davidson Published on Google

Fantastic experience: I’ve been going to Dr Wallace for about 35 years and have always received the BEST care from him and his staff. He and his crew are terrific!

Dorothy Published on Google

Fantastic experience: “My experience at the periodontist’s office was excellent. The technician was very careful, knowledgeable, and made sure I was comfortable throughout the entire visit. Their professionalism and attention to detail really stood out, and I felt confident that I was in good hands.”

Erica McDaniel Published on Google

Fantastic experience: Absolutely phenomenal! Hands down some of the best service provided from both the staff and Dr. Wallace! One of the best referrals I’ve ever received!! Thank you for taking care of me!!

Cathe Harrison Published on Google

Fantastic experience: I cannot say I enjoy going to the Dentist but Dr. Wallace and his team make it a pleasant experience. I have been with them for over 15 years and have nothing but appreciate for how they care for me and my teeth. Cathe Harrison

Miles Hodge Published on Google

Fantastic experience: Dr Wallace has been my Periodicontics for several years and I have only good positive things to say about him and his abilities.

Herb Keefe Published on Google

Fantastic experience: The very best care you can get. Been going to Dr. Wallace for over twenty five years. Always satisfied when I leave the office.

Brandy Handwork Published on Google

Fantastic experience: We had an absolutely amazing experience with Dr Wallace & his staff! Emotions were high & he made us feel like there was a solution to the problem we are facing. Very knowledgeable & personable. Couldn’t be happier thank you so much!

Debbie Quick Published on Google

Fantastic experience: Dr. Wallace took time and talked with me. Most Dr's rush out of the room. Very caring and professional.

Sharon Durden Published on Google

Fantastic experience: First time visiting this office. Fast, friendly, professional doctor and staff.

Lisa Scott Published on Google

Fantastic experience: Everyone at Dr. Wallace's office was great! Very polite, courteous & personable.

Wilbur Lowder Published on Google

Fantastic experience: The appointment was made very easy and didn’t wait long. The receptionist was very friendly helpful. The dentist and assistant were very professional.

Lynn Philpott Published on Google

Fantastic experience: My experience couldn't have been better, staff were friendly, knowledgeable, helpful. I was impressed. Dr Wallace was very professional, personable, helpful, answered all my questions as if I were his only patient. Overall, impressive.

Donald Huggins Published on Google

Fantastic experience: Never thought I'd enjoy going to the dentist! Dr. Wallace and his staff are so personable and friendly. If you ever need an implant, this is the place to go.

Charles Fienning Published on Google

Fantastic experience: For 25 years, I have been a patient of Dr. Marshall L. Wallace. I have been well satisfied in all respects with the professional care and concern demonstrated by Dr. Wallace and his staff.

rebecca touchberry Published on Google

Fantastic experience: One again this year I enjoyed my visit for a thorough cleaning of my teeth at Dr Wallace office in Sumter. Friendly and efficient staff. Always look forward to their professional evaluation. Great results! Thanks!!

Sam Johnson Published on Google

Fantastic experience: Very pleased with the care Dr Wallace and his staff give. They are very professional and friendly and know what they're doing.

Mike Strgmoyer Published on Google

Fantastic experience: Dr Wallace and everyone in his office are super. Dr Wallace is very good

Leave your review about Dr. Marshall L. Wallace, DMD, MHS:

1 = Poor
5 = Excellent

Reviews are checked before they are published. We do not publish reviews containing insults, accusations of criminal conduct or references to specific individuals. We also do not verify that the author was a customer.

Dr. Marshall L. Wallace, DMD, MHS appears in the following listings:

Other dentists you might be interested in

Add your business to our directory for free

If you have a dental clinic and want to appear in our guide, send us your business information and you can appear completely free of charge.

Add your profile for free

The largest directory of dentists in United States

Find the best dentists near you