Meet Our St. Louis Dentists at Dr. Waite & Associates

 At the core of our dental practice is a friendly team of professionals that are dedicated to your utmost comfort and optimal oral health.  We view each patient as a unique individual, and tailor each treatment to your specific needs.  As part of our commitment to providing close, personalized attention to every patient, we want to encourage patient communication.  Please know that we are here to provide outstanding patient care, and that we value the trust you have placed in us.

As your dental health professionals, we want you to be confident knowing that we are a team of highly trained and skilled clinicians. We pride ourselves in providing the care you need to keep your smile healthy.

To give you the best possible service and results, we are committed to continual education and learning. We attend dental lectures, meetings, and dental conventions to stay informed of new techniques, the latest products, and the newest equipment that a modern dental office can utilize to provide state-of-the-art dental care. Also, being members of various professional dental associations helps us to stay abreast of the changes and recommendations for our profession.


Front Desk Team 

Assistant Team

Hygiene Team

Dr. Stuart D. Waite, DDS, MBA

Specialty: Dental Medicine     Subspecialty: General

Undergraduate Graceland University Lamoni, IA
Medical (D.D.S.) University of Minnesota School of Dentistry
Residency University of Alabama School of Dentistry
M.B.A. Washington University Olin School of Business St. Louis, MO

I transplanted from Minnesota to St. Louis in 1989. I came to organize a training program for dentists at Mercy Hospital and never left. I enjoy being part of a team that takes pleasure in serving others. I enjoy meeting people and having the opportunity to improve their total health by education and clinical care. Building relationships with people who value others and want to make a difference in the world gives me joy and satisfaction.

Dr. Scott A. McClain, DDS

Specialty: Dental Medicine     Subspecialty: General

Undergraduate Graceland University Lamoni, IA
Medical (D.D.S.) University of Missouri – Kansas City School of Dentistry
Residency St. Johns Mercy Medical Center

After completing dental school, I returned back home to St. Louis to do my residency right here at Mercy Medical Center. I’ve been practicing at Dr. Waite and Associates since fall of 2013 as an Associate Dentist and attending faculty in the GPR program. I’m happily married with 3 great kids, enjoy golf, the Cardinals, and reading in my spare time.

Dr. Tiffany M. Krimminger, DMD

Specialty: Dental Medicine     Subspecialty: General

Undergraduate University of Central Florida
Medical (D.M.D) Southern Illinois University School of Dental Medicine
Residency Two-Year General Practice Residency at Mercy Hospital St. Louis


Dr. Krimminger grew up in Southern Illinois and moved to St. Louis after finishing dental school. Upon completion of her two-year dental residency at Mercy Hospital, she joined the practice as an associate. She was excited for the opportunity to stay because of the exceptional quality of care provided to patients, the compassionate team members, and the positive educational atmosphere. She is a member of the Academy of General Dentistry, American Dental Association, Missouri Dental Association, and Greater St. Louis Dental Society. She enjoys practicing all aspects of general dentistry and working with adults, children, and patients with special needs. She volunteers annually at Give Kids a Smile and Missouri Mission of Mercy. In her time away from the office she loves exploring the outdoors, running, baking desserts, and watching movie favorites. In June of 2018 she married her husband Maxim with whom she has a puppy named Zara.

Dr. Karissa Cook, DDS