Our Dental Team

League City Family Dentistry

Dentists:

Dr. Martinsen, Dr. Patterson & Dr. Seelbach

Mark Martinsen, DDS, Partner

I was raised in Friendswood where I graduated from Friendswood High School in 1997. I then attended Texas A&M University where I received my Bachelors of Science degree in Biomedical Science with honors. After graduation, I studied at Texas A&M University-Baylor College of Dentistry where I received my degree of Doctor of Dental Surgery.

Since then, I have completed hundreds of hours of postdoctoral continuing education. I am dedicated to the newest advancements in cosmetics, implant, and general dentistry. I enjoy keeping up-to-date with the latest technologies and the most state of the art dental procedures.

I have practiced in the League City and Texas City area since 2013. When I am not practicing my passion for dentistry, I spend most of my time with my two daughters, my son, and my wife Stacey. In my free time, I enjoy all sports and anything involving the water as well as coaching my children’s sports teams.

Certifications

Bachelor of Science – Texas A&M University

Doctor of Dental Surgery – Texas A&M University Baylor College of Dentistry

Professional Memberships / Awards

Ninth District Dental Society: State Delegate, Peer Review Committee Chair, Secretary / Treasurer, President Elect, President

UTMB St. Vincent’s volunteer Dentist

Lighthouse Christian Ministries volunteer Dentist

American Dental Association

Academy of General Dentistry: Dentist of the Year Nomination 2020, New Dentist of the Year Nomination 2018

American Academy of Cosmetic Dentistry

American Association of Implant Dentistry

American Academy of Esthetic Dentistry Award-AAED

Community Leadership Award-TAMBCD

Community Dentistry and Dental Public Health Award-AAPHD

Brent Pattterson, DDS, Partner

In 1999 my wife Michele and I founded Texas City Family Dentistry. A few years later in 2005 we opened League City Family Dentistry. Since then, our practice has grown to one of the longest running and well-known dental providers in Galveston County. We have strived to become a full-service quality driven dental office that accepts small children to the most senior of our neighbors. Currently our patients range from 1 year old to 97 years young!

I was born in the old “County hospital” just across the parking lot from our Texas City office in 1970. After graduation from Texas City High School in 1989, my educational travels found me at Texas A&M University where I graduated with a Degree in Biomedical Science in 1993. While at TAMU, I founded TAMU Pre Dental Society which is a legacy that I am very proud of. My dental career started at The University of Texas Dental School at San Antonio where I received my Doctor of Dental Surgery in 1997. While in dental school, I served in leadership positions as a class officer and as the school’s representative to the American Student Dental Association. My education has continued over the years in many areas but the one specialty that I have found to be extremely rewarding is the treatment of snoring and Obstructive Sleep Apnea. After attending a Dental Sleep Residency Program at Tufts University Dental School in Boston, I achieved Diplomate status as an elite group of practitioners in Dental Sleep Medicine. I have recently joined the American Academy of Facial Esthetics where I have been trained in TMJ and Facial Pain using Botulinum toxin administration for those “hopeless” head and neck pain and migraine suffering patients.

During my career as a dentist here in the Bay Area, I have been very involved with the community and local service organizations. Some of my accomplishments include President of the TC/LM Jaycees Member of the Texas City ISD Foundation for the Future, and panel member of the College of the Mainland’s Dental Hygiene Advisory Board. As a member of the Ninth District Dental Society, I served as, President, Vice President, Treauser, TDA Delegate, and Peer review Chair. I have also received 2 nominations for Texas Academy of General Dentistry’s Dentist of the Year.

Education and Accomplishments

1993 Bachelor of Science – Texas A&M University

1997 Doctor of Dental Surgery – University of Texas HEALTH Science Center – San Antonio

2021 Dental Sleep mini-Residency – Tufts University Dental School – Boston, MA

2021 Diplomate – American Board of Dental Sleep Medicine

2023 Botulinum Toxin Therapy for facial Pain and Migraines – American Academy of Facial Esthetics

Professional Affiliations

American Dental Association (31 years)

Texas Dental Association (31 years)

Academy of General Dentistry (28 years)

American Academy of Dental Sleep Medicine (14 years)

American Board of Dental Sleep Medicine – Diplomate (2021)

American Academy of Facial Esthetics (2023)

Dr. Ann Seelbach

Dr. Seelbach is a native Texan who grew up in West Texas and has lived on the Gulf Coast for the past decade. She completed her Bachelor of Science at Texas A&M University and her Doctor of Dental Surgery at The University of Texas School of Dentistry. If Dr. Seelbach seems familiar to you, it might be from the four years she practiced as a dental hygienist at our office before leaving to pursue her dream of becoming a dentist.

When Dr. Seelbach is away from the office, she enjoys spending time with her husband, Andy, as well as sewing, reading, gardening, and traveling to new places. On beautiful Clear Lake sunsets you might find her walking her Great Dane, Stella.

Liz L, Registered Dental Hygienist

Hi, neighbor! My name is Liz and I have been a Dental Hygienist provider in the League City area since 2006. I graduated with a Bachelor of Science degree in Dental Hygiene from The University of Texas Dental School in Houston and currently attend graduate school at Sam Houston State University. Outside the office I love to garden, travel, hike, backpack, learn languages and take walks with our shih tzu, Lachlan. During the late summer and fall you can often find me traveling with the Clear Falls High School Band and pushing props at football games and band competitions. Go Knights! If we haven’t met around the village already, I look forward to meeting you!

Britney N, Front Office

My name is Britney, I’m 29 years old, I’ve been doing receptionist work for about four years now and I love it! I studied for my associates of applied science in Iowa for my funeral directors license and mortuary science pre Covid. Since then I have taken a break from my studies to focus more on my daughter. On my off time we enjoy going to church, soccer and we both do ballet. We love music and Broadway shows. I have lots of passions and teeth is definitely one of them. I learn something new every day working in the dental field and it’s rewarding.

Blaire O, Registered Dental Hygienist

Hello! My name is Blaire. I grew up in Texas City, graduating from Texas City High School, and now live in League City. I attended college at Texas State University, graduating with a major in Biology and a minor in Chemistry. I studied Dental Hygiene at Blinn College and became a registered dental hygienist in 2011. I am married with 2 children and a Chihuahua. I spend my free time with my and friends. I love getting to know patients and providing them with the best care possible!

Maria B, Registered Dental Hygienist

I was born and raised in Minnesota and moved here to League City in 2017. I graduated from Herzing University and became a Dental Hygienist in 2011. Aside of the clinic, I enjoy reading, spending time with my husband, our two toddlers and yorkie Dinnie.

Beth G, Front Office

My name is Beth. I’m 33 years old and have been in dentistry for 12 years. I have been with my high school sweetheart since 2007 and been married since 2011! We live in Deer Park and have an 8 years old son, who loves baseball and plays for the Deer Park League. I love football and baseball! Go Astros! I also like reading when I’m not running errands! I love going to social gatherings, having fun with friends and meeting new people! I hope to see you soon in our office!

Trezlyn B, Front Office

Trezlyn is born and raised in Texas City. She’s an EMT and Pharmacy Tech who’s worked front desk in the dental field for 3 years now. In her spare time she enjoys bingeing her favorite TV series and is an avid reader who always has a book with her wherever she goes.

Tanya C, Registered Dental Assistant

Hello! I am Tanya and I have been a dental assistant for 26 years. I enjoy spending time with my family and spoiling my eight grandkids.

Sofia G, Registered Dental Assistant

Hi I’m Sofia, I have had the honors of being a Dental Assistant at LCFD for almost 2 years. As well as I am also a part time cosmetology student, pursuing to be a professional hair and makeup artist for big events. My favorite thing to do on my free time is cooking and baking as well as of course, learning new makeup and hairstyles such as bridal updos and more!

Inger G, Registered Dental Assistant

I’ve been a RDA since 2017, and enjoy my role in a patient’s dental health journey! My husband and I met in 2014, and had a beautiful wedding in the fall of 2022. Throughout the years our small family of fur babies has grown. We currently have 2 dogs, 2 cats and even a turtle. In my spare time I enjoy painting, catching the occasional horror movie, or flying above League City with my husband! If you see me around the office, make sure to ask which fun socks I’m wearing that day.

Joann M, Registered Dental Assistant

I started my dental career in 2008, and throughout all those years my favorite part has always been seeing my patients smile and building a relationship with them. I’m a sports mom at my core, and have had the joy of watching my two boys play baseball, basketball and football for CCISD during their high school careers.

During my free time, I enjoy watching the Astros play or dinging a new restaurant to check out alongside my husband of 24 years. I enjoy music and my favorite artist is Taylor Swift. So make sure to tell me your favorite place to eat next time you see me in the office!

Adriana S, LCFD, Office Manager

Hi, I’m Adriana. I’m an active member of this beautiful community and graduate of Clear Creek High School. I’m the office manager here at League City Family Dentistry. With over 23 years of experience in the dental field with 18 of those at LCFD. I bring a tremendous value to our team. I understand all of your needs from intake to discharge and I emphasize the “Family” within our facility. Our staff is here for you, and our goal is to treat you and your family like our family.

In addition to my position at LCFD, I have been a licensed realtor since 2019. I enjoy helping my clients find the perfect home for their families.

Michele P, CFO

Hello! My name is Michele and I have managed the financials HR and marketing for both LCFD and TCFD since 1999. I was born and raised in Texas City and, after receiving my Bachelors in Business Administration from Texas A&M, I became a Certified Public Accountant. We moved back to the bay area to raise our two children and we couldn’t have picked a more supportive community.

In addition to my work at the dental office, I enjoy traveling, concerts, movies, books and our silly dog, Jack. I am also passionate about supporting the Alzheimer’s Association in honor of my beautiful mom, Patsy June.

I am so proud of what our offices have become and the patients we have helped over the last 25 years. Our goal has always been to treat our patients like family and we work every day to achieve it. Thank you to everyone who made our dream a reality.

Texas City Family Dentistry