Chemical Peel before and after

If you’re in O’Fallon, Missouri and looking for a dermatology office that’s focused on clear answers and high-quality in-person care, St. Louis Dermatology & Cosmetic Surgery is here to help.

Many patients from O’Fallon and St. Charles County choose our practice in Troy, MO, for a thoughtful, medically guided approach—whether they’re dealing with a long-standing skin issue or a new concern that needs a professional evaluation.

  • Locally owned and patient-centered
    • We’re a community-focused practice, not a corporate chain. Patients often appreciate the continuity of care and our prioritization of communication.
  • Advanced medical training and credentials
  • Evidence-based care without pressure
    • We’ll explain what we see, what it may mean, and what your options are—so you can make an informed decision. No hype. No rushed recommendations.
  • A visit that respects your time
    • Our team works to keep appointments efficient and organized while remaining thorough—especially important for busy families and professionals from O’Fallon.

Medical Dermatology

Our office provides comprehensive medical dermatology for Missouri residents. We treat acne, perform skin cancer screenings, evaluate and remove moles, and manage chronic conditions such as eczema, psoriasis, and rosacea. We also treat warts, cysts, and other benign skin growths. Every diagnosis and treatment plan is tailored to the individual, with a focus on long-term skin health and evidence-based care.

Cosmetic Dermatology

We offer cosmetic dermatology services designed to enhance natural features while maintaining balance and expression. Treatments include dermal fillers for facial restoration; acne scar treatments such as subcision, microneedling, and laser procedures; and laser treatments for pigmentation and sun damage. Each cosmetic consultation includes personalized recommendations based on your goals, skin type, and desired downtime. Results vary, and a consultation is required.

Surgical Procedures

Our practice provides advanced surgical dermatology with careful attention to both medical precision and cosmetic outcome. We perform skin cancer excisions, cyst and lipoma removal, scar revision procedures, and reconstructive repairs when needed following skin cancer removal or trauma. Dr. Beal’s fellowship training in facial plastic and reconstructive surgery allows for thoughtful repair techniques that aim to preserve both function and appearance.

Mohs Surgery

For certain types of skin cancer, Mohs Micrographic Surgery may be recommended. Dr. Beal is fellowship-trained in this specialized, tissue-sparing technique that enables precise removal of cancer while preserving as much healthy tissue as possible. During the procedure, tissue is examined under a microscope in real time to ensure clear margins before reconstruction. When appropriate, repairs are completed the same day to optimize healing and cosmetic outcomes.

If something on your skin is bothering you—persistent, painful, changing, or simply uncertain—it’s reasonable to get it checked. We can evaluate and guide you on the next steps.

Second opinions are welcome. If you have prior records, biopsy results, or photos, bring them along—we’ll incorporate that information into your visit.

Bring your ID, insurance card (if applicable), a medication list, and any relevant history. If you’re concerned about a specific area, note when it started and any changes you’ve observed.

We work with many insurance plans. Coverage varies, so the best next step is to call, and our team can help verify your plan details.

Joycelyn Archer
5 days ago
Great doctor an nice staff
Response from the owner:Thanks for taking the time to share your positive experience. We truly appreciate it!
Jenny Kroeger
7 days ago
Staff is super friendly and professional. Appt was thorough and quick. Treatment was explained clearly. Highly recommend St.Louis Dermatology!
Response from the owner:We are thrilled to learn that you had a positive experience with us!
Evan Smith
1 week ago
Response from the owner:Thank you so much for leaving us a stellar review!
Kelsey Atteberry
2 weeks ago
Dr. Beal and everyone in his office were very friendly and courteous. I got into the office relatively fast as a new patient. They all listened to me when I talked about my concerns and why I was there for my visit. Every follow up has been thorough and my surgical scars have healed beautifully after my procedures.
Response from the owner:Your feedback is highly appreciated. Thank you for the review!
Kathleen Horn
2 weeks ago
They have a very professional staff. Kayleigh Nissel was very nice and personable. Overall experience was pleasant. Thank you!
Response from the owner:We appreciate the kind words and are glad we could provide you with a positive experience!
Trisha Johnson
2 weeks ago
Doctor and staff were great. Explained everything so I understood.
Response from the owner:Thanks for taking the time to share your positive experience. We truly appreciate it!
Brian Letendre
2 weeks ago
For a first visit I was in for a full body screening. Cancer runs in my family, so I can't be too careful. The team was very polite and professional. Thanks
Response from the owner:We are thrilled to learn that you had a positive experience with us!
Lisa Wilson
2 weeks ago
The staff at STL DERMATOLOGY is warm, welcoming, caring and professional. If you are looking for a new dermatologist, I would check them out!
Response from the owner:Thank you so much for leaving us a stellar review!
AmericanVantige
2 weeks ago
Response from the owner:Your feedback is highly appreciated. Thank you for the review!
Daffanee Vogt
2 weeks ago
Everyone is very welcoming and nice . No long wait time . The facility is very clean and Spacious.
Response from the owner:We appreciate the kind words and are glad we could provide you with a positive experience!

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