Serving O’Fallon, Missouri

Dermatology & Cosmetic Surgery for O’Fallon, MO. Physician-owned, two nearby locations.

For O’Fallon residents, St. Louis Dermatology & Cosmetic Surgery offers medical dermatology, cosmetic surgery, and laser care in a locally owned, medically directed practice led by Dr. Brandon T. Beal — double board-certified in dermatology and Mohs surgery, fellowship-trained in facial plastic and reconstructive surgery. Our Chesterfield location is an easy drive away, with our original Troy office also serving the region.

4.9★★★★★760+ Google reviews
2020Established in Troy
2Missouri locations
St. Louis Dermatology & Cosmetic Surgery — serving O'Fallon, MO

Cleveland Clinic Residency

American College of Mohs Surgery

American Academy of Dermatology

Zitelli & Brodland Fellowship

A trusted dermatologist for O’Fallon, Missouri

O’Fallon and St. Charles County residents have specialist-level skin care close to home. Our Chesterfield location puts medical dermatology, cosmetic surgery, and advanced laser treatment within an easy drive, and our original Troy office continues to serve the wider region. We care for busy families and professionals from O’Fallon, Lake St. Louis, and the surrounding communities.

As a locally owned, medically directed practice, we prioritize personalized treatment plans over one-size-fits-all protocols. Whether you’re booking a routine skin exam, treating acne, or considering cosmetic surgery, care comes from Dr. Brandon T. Beal and our exceptional team — never a corporate chain. Most new patients are seen within the same week, and we accept Medicare and most major insurance for medical visits.

Call (314) 834-1400 or request an appointment online. With two Missouri locations — Troy and Chesterfield — we make specialist care convenient for O’Fallon families.

Before & after

Real results from our patients.

A selection of documented results across the conditions and procedures we treat most. Every photo is from a patient of this practice. Results vary.

Common questions

FAQs for O’Fallon patients.

What kinds of concerns should I come in for?

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

What if I’m coming for a second opinion?

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

How should I prepare for my appointment?

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

Do you accept insurance?

We accept Medicare and work with many major insurance plans for medical dermatology. Coverage varies, so the best next step is to call — our team can help verify your specific plan details. Cosmetic procedures are typically self-pay.

4.9
★★★★★
From 760+ Google reviews
Google verified
Donna Snider
21 hours ago
Response from the owner:Your feedback is highly appreciated. Thank you for the review!
Katie G
6 days ago
I had a wonderful experience here! Everyone was kind, welcoming & professional. The Doctor (Jennifer Swofford) I saw took the time to listen to all my questions & concerns. Everything was explained super well to me and I never felt rushed. I’m so grateful for the excellent care and would highly recommend this office to anyone looking for a dermatologist!
Response from the owner:We appreciate the kind words and are glad we could provide you with a positive experience!
I had a Great experience and all was explained to me thoroughly. Will definitely keep coming back!
Response from the owner:Thanks for taking the time to share your positive experience. We truly appreciate it!
deb martinek
6 days ago
Response from the owner:Thank you so much for leaving us a stellar review!
Kara Butler
6 days ago
I have never had a skin cancer check before but I am fair skinned, have a lot of irregular looking spots, tanned a lot in my 20’s, so I came here for a check, the office in Chesterfield. The office staff were really nice and I didn’t wait long to be seen. I saw Kayleigh Nissle and her assistant. They were both knowledgeable gave me peace of mind.
Response from the owner:We are thrilled to learn that you had a positive experience with us!
Brenna Walton
6 days ago
Response from the owner:Your feedback is highly appreciated. Thank you for the review!
LEONARD PEARCE
6 days ago
Very professional and detailed. Would highly recommend them
Response from the owner:We appreciate the kind words and are glad we could provide you with a positive experience!
Kevin Raines
7 days ago
I am happy to say that every member of STL Dermatology & Cosmetic Surgery that I have been served by or interacted with has been more than Professionally Helpful. Each and all, in their own Personal Manner, have been a Source of Kindness who support Physical Wellbeing by, first, focusing on Peace of Mind.
Response from the owner:Thanks for taking the time to share your positive experience. We truly appreciate it!
Everyone was very kind.When I saw the Dermatologist I didn't feel rushed. She listened to all my concerns and explained everything.The assistant check to see if my insurance would cover a procedure.The office was alot larger with more seating and was very clean.
Response from the owner:We are thrilled to learn that you had a positive experience with us!
Terri Trzecki
7 days ago
Response from the owner:Thank you so much for leaving us a stellar review!

Exceptional skin care for O’Fallon, MO.

Same-week appointments. Medicare accepted. Two Missouri locations — Troy and Chesterfield.