MCD Staff



Lisa has been in the dental field for ten years, and joined Medical Center Dental Group in April of 2012. As our Treatment/Financial Coordinator, Lisa spends her time discussing the insurance and financial arrangements for our patients treatment needs.

Lisa was born and raised in Belize, Central America. She is very family oriented, recently got married and has three beautiful children, which keep her very busy and entertained. In her spare time, she enjoys traveling, spending time with her family and friends, shopping, entertaining people, and loves the beach!

She enjoys working with Dr. Ramirez, Dr. Mari, and the friendly staff at MCD. She enjoys helping patients feel better about their dental care as well as getting to know them on a personal level. Her goal is to make every experience at MCD, whether over the phone or in the office, one of the best dental experiences our patients have ever had. She and our team aspire to provide our patients with the highest quality of dental care.


Darlene was born in San Antonio, Texas and lived here for about 10 years. She then moved with her family to the Rio Grande Valley and lived in Harlingen, Texas for the next 24 years. While living in Harlingen, Darlene received her Bachelor’s degree in History with a double minor in English and Psychology. Currently, she is working towards her Master’s degree in Organizational Development and Leadership with the University of the Incarnate Word. She has been involved in the dental field for 5 years, where she has served as Patient Care Coordinator and Business Manager. She is the most recent member to join the  Medical Center Dental family and is happy to serve MCD patients the best way she can.

Darlene is also a loving wife and mother of four wonderful children. Typically, on her off time she is either driving one of her children to some type of sporting event or supporting her nieces and nephews in their extracurricular activities. Other than spending time with her family, Darlene enjoys sipping on a good cup of joe and is an avid Spurs fan!




Margo was born and raised in San Antonio. She graduated from Sandra Day O’Connor High School in May of 2002 and then pursued her collegiate career at Northwest Vista and San Antonio College. In the Spring of 2004, Margo joined Ramsgate Family Dental (now Medical Center Dental Group), where she split her time between the San Antonio practice and Hebbronville Dental Group. The daughter of Dr. Ramirez, Margo enjoys serving those in need, and for that reason has spent a lot of time in the rural community.

Having been a part of our dental team for over 11 years, Margo has extensive knowledge in insurance matters, as well as greeting patients, scheduling patients, and keeping the office laughing! In her spare time, Margo enjoys going to the movies, bowling, and enjoys painting on canvas’ at “Pino’s Palette”. She also enjoys quality time with her family!


Michelle was born and raised in San Antonio, Texas. Now a resident in Cibolo, Michelle makes quite the trek to make it to our practice each day. She has been a registered Dental Hygienist for 22 years, having graduated from the University of Texas Health Science Center of San Antonio in 1994. She began working for Dr. Ramirez at Ramsgate Family Dental from 2001-2008, before taking a few year hiatus to raise her two beautiful children, now grown.

Michelle has since returned, and joined Medical Center Dental Group again in 2014. We are very lucky to have her back! Michelle loves being a Dental Hygienist and gives the best possible care to her patients each and every day. Her ability to connect with patients on a personal level and her passion for life make her an asset to our dental team. Michelle spends quality time with our patients and knows the importance to educating our patients so that they can make informed decisions about their dental care.

In her spare time, Michelle enjoys cooking and entertaining for her family and friends. She is also a phenomenal bake, and MCD loves trying out her delicious recipes!




Karen is a native of San Antonio, Texas. Karen joined the team in April 1988. Since 1979, dentistry has been a big part of her life. Karen graduated as a dental hygienist from the University of Texas Health Science Center in San Antonio in 1984. Since then she has enjoyed working in many areas of dentistry, especially orthodontics. With her many years in orthodontics, she has brought knowledge and skill to a practice that encourages excellence and a love for people.

Karen also has two wonderful children, Christopher and Avery, and a great son-in-law, Matthew. In her spare time, she enjoys traveling, the outdoors, photography and spending time with family and friends. She also has a love for dogs and has one of her very own.

Karen feels very blessed to have found such a wonderful Doctor and Team to work with all these years!


Margie is a native Texan, born and raised in San Antonio. She came on board with Ramsgate Family Dental (now Medical Center Dental Group) in November, 1998. Margie’s dental career began as a dental technician in 1958, working for the well-respected Duffin dental laboratory. Seeking to expand her career, she was offered an opportunity to train and work as a Dental Assistant, which she gladly accepted.

After one year as an assistant, Margie attended San Antonio College to receive her required hours and after passing her final exam at Rice University, received her certification. She also became a member of the San Antonio Dental Assistants Society.

Margie is the widow of E.A. (Doc) Holliday and has four loving children, Albert, Johnny, Naomi and Samuel; 14 grandchildren and 4 great-grandchildren, and one more to be added in January, 2016. Margie also has diverse interests and hobbies. She loves to crochet, write poems, read, play the piano and especially spend time with family. Coming from a background of musicians, she had the once-in-a-lifetime opportunity to record a Gospel CD in 2013. She also completed a four-year Bible and ministry study and received a Diploma. Through the years, Margie has been an active member of the Church and continues to be a student of God’s Word.

She has enjoyed many years in dentistry, helping people with their dental needs and serving her employer with loyalty, dedication and commitment. Margie has found fulfillment as an assistant because it has given her the opportunity to show kindness and compassion to her patients and become a good listener.



Myrna was born and raised in El Paso, Texas and graduated from El Paso Community College with an associates of Applied Science in Dental Assisting. She moved to San Antonio in 2012 and is continuing her professional aspirations with us here at Medical Center Dental Group. 

She has a wonderful husband and 3 beautiful children. In her spare time she loves traveling with her family, enjoying her love of baseball and spending quality time with her children.

Her passion is working in the dental field because it gives her the opportunity to help educate her patients on their oral health. 




Arleen was born and raised in Corpus Christi, Texas. She has been in the Dental profession since 1989, and started her career as a Dental Assistant. In order to expand her dental career, she attended Del Mar College and graduated as a registered Dental Hygienist in 2003.

Arleen joined Hebbronville Dental Group in 2015 and we are very lucky to have her. She travels from San Antonio to Hebbronville, Texas on a bi-monthly basis to serve those in need. Arleen has a very boisterous personality and keeps the office laughing on a daily basis.

Arleen is a devoted mother, friend, and Steeler’s fan! Her perfect day would consist of early morning coffee in pajamas, and ending the day with quiet time and reading a good book.



Amanda Wilson, received her certificate in dental hygiene from the University of Texas Health and Science Center San Antonio in 2002. She grew up in Oklahoma and moved to San Antonio with her husband of almost 19 years in 1999. She lived in Germany from 2007-2011 and visited 16 countries while living there. She has one 10 year old son and 3 fur babies, a German Shephard, a greyhound, and a rescue mutt. Her hobbies include spending time with family and friends, traveling and dancing.

Amanda has worked for MCD since 2013 and loves working in a general practice setting because of the diversity of the patients seen. She has a passion for educating her patients, helping them reach optimum oral health, and providing high quality care.