Meet the doctors & staff at our

Portland Location

Located at:

101 Cox Dr

Portland, TX 78374


Medina 183 5x7 

Dr. Sarah Medina 

Dr. Medina graduated from Baylor College of Dentistry in Dallas in 2013 and is excited to be back in South Texas where she was born and raised!  Since graduating from dental school, Dr. Medina has been very involved in the Junior League of Corpus Christi, which has provided her with several opportunities to give back to the local community.  

When she’s not working, Dr. Medina enjoys spending time outdoors with her son, Sam, volunteering in the local community, or getting away for the weekend for a fun concert or some down time.



Jennifer Thornton-Office Manager

I became a dental assistant at the young age of 19 and now have about 13 years experience under my belt. I began my career in San Antonio, where I was born and raised. I moved to Portland about seven years ago and started working with the Allen Dental Family. One of my favorite sayings is “Do what you love, and you’ll never work a day in your live.” I feel blessed to be able to say that I love what I do! Outside of work, I enjoy attending my son and daughter’s sporting events and reading long books.


 Robin Terry – Patient Coordinator

Originally I am from Maryland but have lived in Virginia, where I began my dental career as a dental assistant in 1994. I have extensive experience in all areas of the dental office and enjoy working with people. In 2004, I moved to Aransas Pass with my husband and two sons. I started working with Dr. Cuellar in 2009 and have found a new home working with this team. In our spare time our family enjoys spending time at the beach and having fun in the South Texas sun.



Corrin Ebby-Registered Dental Hygienist

I am a Dental Hygienist originally from Dripping Springs, Texas.  I joined the dental field at a young age, but have been practicing dental hygiene for five years now.  I graduated from Coastal Bend College in Beeville, Texas in 2010 and I love my job.  Our practice at Allen Portland Dental is the best place to work!  When I’m at home I enjoy hanging out by the pool with my husband and our five sons.  I also enjoy yard work, exercise and going to the beach.

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 Hollie Swierc-Registered Dental Hygienist

I am a 1999 Gregory Portland HS graduate. I graduated from Del Mar College in 2001 with an associate’s degree and a certificate as a certified dental assistant. As I was working as a dental assistant, I was actively pursuing becoming a registered dental hygienist. In 2005 I graduated from Del Mar College as a registered dental hygienist.

I’m married to my hero, a Portland fire fighter! We have two awesome children together. In my free time I enjoy spending time with my husband and kids. 



Danielle Gutierrez-Registered Dental Assistant

I have lived here in South Texas my whole life. I graduated from the Dental Assisting program at Del Mar College in 2011. I was very fortunate to find my job with Dr. Cuellar during my externship and began my dental career in the summer of 2011. I really enjoy coming to work everyday with Dr. Cuellar and our wonderful team. I look forward to a long and exciting career in dentistry! Outside of the office, I enjoy shopping, music, traveling, and spending time with family and friends.


Photo Coming Soon!

 Sonya Midkiff-Registered Dental Assistant