RFSA Dermatology in San Antonio
Our mission is to provide the highest level of dermatology care to our patients in the San Antonio area. We, as skin specialists, strive to have easily available appointments at our two locations in Castle Hills and Olmos Park. At RFSA Dermatology, our entire team is dedicated to helping you maintain healthy, beautiful skin.
Our Doctors

Get to know and learn more about our doctors.
RFSA Dermatology offers the people of San Antonio the best dermatological care to maintain healthy and youthful skin. You can look your best even when age is catching up with you. We also offer consultation services to help you determine whether botox San Antonio treatment is the best service for you or if you should explore any other services we offer.


Are unmanaged, unruly, unbearable eczema symptoms causing you unwanted pain, discomfort, and shame? There’s no need to endure the often downright miserable effects of eczema-related severe skin irritation, itching, and inflammation.
As common of a problem as acne is, experiencing it is often surrounded by feelings of shame. When we wake up in the morning and find such an unwelcome guest, it’s all we can think about throughout the day.

Patient Reviews from The Best Dermatology in San Antonio
Great staff – very friendly – they take the time to fully address all of your concerns – and provide excellent care.

Herman Alexander
1673546310
Absolutely the best. Honors appointment times. Dr. Rainey gets to task quickly and is thorough in the exam. Another big plus is that Dr Rainey is very pleasing to the eyes. You will find yourself looking forward to the next visit.

Denis Cowley
1664907899
I’ve been to both the Olmos park and the Castle Hills locations and all of their staff are so kind and professional. Dr. Rainey is an incredible physician. I have had several laser sessions done by one of the estheticians named Bianca and I’ve been extremely happy with my results!

Lauren
1694013981
I’ve only seen Dr. Finklea. She is Amazing! So quick to see all little things that could be a problem as well as the obvious. Wow! I’m impressed every time I come.

cindy lou
1666141399
I was able to schedule an appointment within 24 hours. My wait time once I got to the clinic was minimal. My clinic visit was informative and engaging. I suffer from dermatitis and the treatment prescribed provided relief within hours. I have been going to RFSA dermatology for 5 years and will continue to go due to their personal care and attention

Iris Sanchez
1677339021
Everyone on the staff was super friendly! (It’s rare to see this nowadays!) Dr. Rainey is knowledgeable and so sweet! They got me in and out in such a timely manner which I truly appreciate. Keep up the great work ladies!!

Talland Blanchard
1690830241
Always a professional and pleasant appointment. Highly recommend.

Russ Vick
1683729612

Francisca Aleman
1684249317
Super friendly and it was very easy to get an appointment. Knowledgeable and efficient staff.

Lorena Garza
1667225131
AWESOME DOCTOR- REALLY CARES AND TAKES TIME TO LISTEN

Beverly Schaefer
1672153718
I have been a patient of Dr. Lindsey Finklea for several years. During that time, she has always been professional, attentive, and caring. I have never felt rushed, and Dr. Finklea has always addressed my questions and concerns. The physical office space is beautiful and serene, and the staff is friendly and professional as well. A 5-star experience!

jan ross
1677625257
I’ve always had a great experience with RFSA. PA Galvan is always knowledgeable and seems to truly care about his patients. All the staff is great as well. I always recommend this business to others if I ever get the chance to. I couldn’t be happier! 😊

Cyleste Gonzalez
1684507654
Very pleasant experience. They were attentive and professional. Highly recommend and will return.

Robert Marmolejo
1666795594
Great service lik always.

Jose Guillen
1673976376
I have had great success using RFSA Dermatology. My appointments have been kept on time. The doctor has been thorough and has always told me what she was doing and why.

Stet Reid
1684258995
Love it!! I have been going here for years since it was in the Nix building and was called Rainey Dermatology. The Staff is Awesome and all the new locations make it very convenient!! Now my Husband, Son & Daughter go here too and Love it as well!! Thank you for being so caring!! 🙌🏽🫶🏽

Yari Ramirez
1673542560
I saw Dr.Finklea last week and she is exceptional! She examined my skin concern very closely, gave me information about my diagnosis, and provided relief within 1 day of treatment!! Dr. Finklea truly has excellent bedside manner. She is so kind and treats you like family. I have been seeing her for 5 years and will refer my family/friends to see her! I highly recommend her, she’s a one of a kind doctor!!

Bianca G
1681873941

Foxxy Flowers
1668017801
I was very nervous about having a sublative lazer procedure. When I called the office I spoke with Bianca who was very friendly and knowledgeable about the procedure all around, that really gave me piece of mind. When I had arrived to the facility I was impressed with the cleanliness and friendly staff! I was was still nervous but again Bianca’s friendliness and professionalism made me feel safe. The procedure went well and didn’t hurt as bad as I thought it would. It took less than a week to completely heal.Thank you Bianca for your professionalism and warm welcoming attitude!

Zack Martinez
1688160455

Jerry Garcia
1673925762

Nina Medrano
1670350933
On time surgery to remove Basil cell from arm. Painless and completely satisfied! I am a repeat patient.

James Lacy
1675784856
When I was seen several months ago, they got me in quickly, excellent and professional, My family members have gone after me with good outcomes.

Lorenzo Gonzalez
1675278727
Treat you like family

Roy Leslie
1669738087
excellent!!!!

Josie Cigarroa
1684313242
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Have any questions, concerns, or simply just want to get more information, use the form and we will be in touch soon!