What patients are saying
Overall rating
4.71
Average wait time
4.57
Bedside manner
4.71
“I had a really positive experience here. Dr. Williams is very knowledgeable and took the time to clearly explain everything, which I genuinely appreciated. Sabrina, my dental hygienist, was also excellent, gentle, thorough, and attentive throughout the visit.
The entire team was professional and made the experience comfortable from start to finish. I would definitely recommend this office to anyone looking for quality dental care.”
RHLess than 3 months ago
“Everything went smooth and painless from start to finish. Dr. Williams and his staff were not only very professional, but also, very caring! I was explained each step that would be taking place.”
BLLess than 3 months ago
About Dr. Mark Williams
Anxious about the dentist? Dr. Mark Williams, DMD, MPH, has made anxiety management a cornerstone of his practice: a calm, patient-driven approach that helps nervous patients feel relaxed and in control. He earned his DMD from the Arizona School of Dentistry and Oral Health, completed Advanced Education in General Dentistry at UT Health Science Center in Houston as Chief Resident, and holds a Master of Public Health. He practices at an award-winning office named to Houstonia Magazine's Top Dentists 2026 and America's Best Dentists 2025, with over 4,000 five-star Google reviews.
Book your new patient exam, teeth cleaning, and digital X-rays online, often with same-day availability. Visits are gentle and thorough: ultrasonic and laser cleanings, FDA-approved AI cavity detection, and low-radiation X-rays, with an honest plan and zero pressure.
In pain right now? A toothache, broken tooth, or knocked-out tooth can't wait, and you won't have to. Emergency care is one of Dr. Williams's focus areas, with same-day appointments and Saturday availability, including emergency tooth extractions.
His expertise spans restorative and cosmetic dentistry, root canals, oral surgery including wisdom teeth removal, crowns, bridges, and dentures, and deep cleanings for gum disease, with BPA-free materials and a 10-year warranty on crowns, veneers, and fillings maintained with routine cleanings.
Ready for a new smile? Dr. Williams provides Invisalign at a Sapphire-level office (top 0.5% of providers), and his office offers porcelain veneers from the same elite labs celebrities trust at no added cost, teeth whitening, dental implants placed by a board-certified periodontist using Straumann and Neodent systems, and FDA-approved VIVOS treatment for snoring and sleep apnea.
In-network with all major PPO dental insurances, with complimentary verification.
Calm visits, complete care. Book with Dr. Williams on Zocdoc today.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Delta Dental
Guardian
Metlife
UnitedHealthcare
Office locations
URBN Dental Implants & Invisalign (2 of 13)
6363 San Felipe, Ste 200b, Houston, TX 77057
URBN Dental Implants & Invisalign (6 of 13)
803 W Sam Houston Pkwy N, Ste 124, Houston, TX 77024
URBN Dental Implants & Invisalign (7 of 13)
2921 Riverby Rd, Ste 110, Houston, TX 77020
URBN Dental Implants & Invisalign (8 of 13)
3201 Allen Pkwy, Ste E 200, Houston, TX 77019
URBN Dental Implants & Invisalign (13 of 13)
6645 South Fry Road, Ste #1000, Katy, TX 77494
1 of 13
Education and background
Practice names
Education and training
- Dental School - A.T. Still University - Arizona School of Dentistry & Oral Health, Doctor of Dental Surgery
- UTHealth Houston School of Dentistry, Residency in General Dentistry
- Arizona State Public Health Laboratory (Master's)
Professional memberships
- American Dental Association
Languages spoken
- English
- Spanish
Provider's gender
Male
NPI number
1073012969
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.71
Wait time
4.57
Bedside manner
4.71
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
21 reviews
Most relevant
We love Alyssa in the room and Chelsea in the front! Also, Dr. Williams is amazing and thorough! Thank you!
Less than 1 year agoKS
Great atmosphere, Dr William explained very thoroughly and was very helpful
Less than 6 months agoFL
I had a really positive experience here. Dr. Williams is very knowledgeable and took the time to clearly explain everything, which I genuinely appreciated. Sabrina, my dental hygienist, was also excellent, gentle, thorough, and attentive throughout the visit.
The entire team was professional and made the experience comfortable from start to finish. I would definitely recommend this office to anyone looking for quality dental care.
Less than 3 months agoRH
The front desk people were very friendly, but I just didn’t like especially the dental assistant like he was always in the exam room by my side. It won’t give me breathing room. Then when they were doing the x-rays, I felt like they were not being cautious and hearing my concerns, cause it hurt, especially when they told me to bite down. It was taking over an hour just to be seen by the dentist and then you’re saying that you need to see my x-rays again cause you couldn’t see it clearly which I feel like that was a lie because you wanted to just get extra money from my insurance to get x-rays, which is ridiculous. I really came for a braces consultation and I was just being seen from medical stuff and now you’re telling me to give medical clearance and then giving me all these things that I need to do for my teeth, which is well over $2000 just to get a clearance for my braces to be referred to an orthodontist. SMH so I will never be returning or referring anyone to URBN dental.
April 20, 2026Samusdeen B.Verified patient
Everything went smooth and painless from start to finish. Dr. Williams and his staff were not only very professional, but also, very caring! I was explained each step that would be taking place.
Less than 3 months agoBL
Very nice people everyone.
March 7, 2026Kevill B.Verified patient
clean and professional
Less than 6 months agoPH
Great visit everyone was professional
January 24, 2026Wayne B.Verified patient
I walked in expecting a Basic cleaning and customary dental experience And I left completely amazed at the quality of service I received from the front desk to the dental work. There was much more I needed to get done than expected, and I felt extremely comfortable entrusting the Team with my care.
Thank you, Dr. Williams, for one of the most thorough, informative, and complete experience I’ve had with a dental professional:
Less than 6 months agoMW
After my 2nd appt, Im not sure what to think. Things look promising but from an overall point of view, I think things could have been better with just a little more foresight on both our behalfs.
Less than 6 months agoAM
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February 2, 2026Rachael S.Verified patient
Less than 6 months agoJL
Less than 6 months agoInitials hiddenSource: Partner
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How soon can I make an appointment with Dr. Mark Williams?
Generally, Dr. Mark Williams has appointments available on Zocdoc within 1 week. You can see Dr. Williams's earliest availability on Zocdoc and make an appointment online.
Is Dr. Mark Williams accepting new patients?
Dr. Mark Williams generally accepts new patients on Zocdoc. You can see Dr. Williams's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Mark Williams accept my insurance?
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Can I make an appointment with Dr. Mark Williams online?
Yes, you can make an appointment online with Dr. Williams using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Mark Williams work with?
Dr. Mark Williams works with URBN Dental Implants & Invisalign.
Where is Dr. Mark Williams's office located?
Dr. Mark Williams has 13 office locations, including in Houston, Katy, and Nassau Bay, view full addresses on Dr. Williams's profile.
What are common reasons for patients to see Dr. Mark Williams?
Dr. Mark Williams frequently sees patients for Bridge, Dental Cleaning, Dental Consultation, Pediatric Dentist Consultation, and Root Canal. You can see other visit reasons for Dr. Mark Williams on their profile.
What languages does Dr. Mark Williams speak?
Dr. Mark Williams speaks English and Spanish.
How do patients rate Dr. Mark Williams in reviews?
21 patients have reviewed Dr. Mark Williams. The overall rating for this doctor is 4.71/5. They have a 4.71/5 rating for bedside manner and a 4.57/5 rating for wait time. You can read individual reviews and ratings on their profile.