• Beautiful Smiles

    We are located at 900 Plaza Drive, Suite 3 in Mission, TX
  • One on One Consulting

    Dr. Castillo advises a patient on her procedure.
  • Keeping Valley Families Smiling!

    We love to see our Valley Families leaving with a Smile!


Welcome to Beautiful Smiles. Dr. Miguel Castillo III, DDS, is cosmetic dentist with years of helping the people of Mission, McAllen and South Texas. Our courteous, professional staff has as its goal making your dental experience as pleasant as possible. At Dr. Castillos’ office, we strive to be more than just a local dental option. Dr. Castillo is a Cosmetic Dentist Who Can Serve All Your Needs.

We are happy to offer a wide range of general dentistry and cosmetic dentistry services. Dr. Castillo can treat most any dental condition and offers just about any procedure you might need. No running around to multiple dentists’ offices. No scrambling to make numerous appointments. Just a friendly staff and an experienced dentist. If you are in the Mission, McAllen, or in South Texas please feel free to give us a call at 956-584-1554 or contact us HERE to email us your info and we can call you to schedule an appointment.

Why you need to choose us?

Our Staff are all very Courteous and Very well Qualified.

You’re facing the loss of a tooth, a few teeth, maybe all of them. You don’t smile so much anymore, it’s painful or uncomfortable to.....Read More


Millions of Americans who are in need of dental care avoid going to the dentist out of fear. We can understand this. Some people ....Read More


With cosmetic dentistry, Dr. Castillo can make your smile light up a room when you enter. Through different procedures, he’ll.. ....Read More

Our Other Servivces

Orthodontics is a form of dentistry that specializes in the diagnosis, prevention and treatment of dental and facial irregularities. These problems....Read More
As of early 2006, the Academy of Sleep Medicine recommends “…sleep oral appliances as the #1 treatment for sleep apnea and....Read More
To ensure success in our procedures, Dr. Castillo and his team take the necessary time to thoroughly evaluate your present dental....Read More

Learn about Dental Implants Here!


  • What is Cosmetic Dentistry?

    Cosmetic dentistry focuses on the aesthetics of the whole smile. New advances allow the dentist to shape, lengthen, lighten, and straighten teeth to make the restoration look as natural as possible and achieve a natural looking smile.
  • Should I Consider Cosmetic Dentistry?

    Look carefully at your smile. If you feel it could be better, you should consider Cosmetic Dentistry. Having a beautiful smile goes deeper than appearances. It gives you confidence. It will give you an edge in your everyday activities-improving your professional and personal image.
  • Do You have Financing for Dental Work?

    Yes, for qualified applicants we offer financing programs.
  • Do you accept my insurance plan?

    Our office accepts nearly all of the major insurance plans. We’re well-versed in the latest coverage trends, and are more than happy to discuss the particulars of your plan with you prior to any treatments you may undergo.
Ask Your Question?

Make an Appointment

Address: 900 Plaza Dr, Ste. 3, Mission, TX 78572
Office Hours:
Monday 9:00 a.m. - 7:00 p.m.
Tuesday 8:00 a.m. - 3:00 p.m.
Wednesday 8:00 a.m. - 5:00 p.m.
Thursday 8:00 a.m. - 3:00 p.m.
Friday 8:00 a.m. - 12:00 p.m.

Meet Dr. Castillo

DrCastillo2015 A native of the Rio Grande Valley, Dr. Miguel Castillo III graduated high school from ....Read More
e: Email Dr. Castillo Here w: http://beautifulsmilesrgv.com f: Follow us on Facebook Here! t: Follow us on Twitter Here!