Dr. Janice Vlasak Weinman

Dr. Janice Vlasak Weinman is a dentist in Seguin, Texas, who specializes in rendering caring, quality dental care to patients of all ages.

Dr. Weinman received her Bachelor of Science from Texas Lutheran in 1985 and her Doctor of Dental Surgery degree from the University of Texas Health Science Center in San Antonio in 1988.

She opened her solo general and cosmetic dental practice in a beautiful, state-of-the-art facility in Seguin in July 2008. Prior to that, she practiced in Gonzales from 1989 to 2008 and in San Antonio in 1988. Dr. Weinman enjoys all phases of dentistry. She works well with a TEAM of specialists for more complex cases that may require their assistance.

Dr. Weinman is a member of the American Dental Association, Texas Dental Association, River District Dental Society, Texas Association of Women Dentists, the Seguin Area Chamber of Commerce, the Seguin-Guadalupe County Hispanic Chamber of Commerce, and Spirit of Joy Lutheran Church. She is a past president of the Texas Association of Women Dentists and the River District Dental Society.

Dr. Weinman actively attends Spirit of Joy Lutheran Church and enjoys participating in various activities within the ministry.

Dr. Weinman is married to Kevin Seider. After 35 years, God put this wonderful, caring man back into Dr. Weinman’s life, and the two quickly became great friends! God worked everything out so that Kevin was able to transfer his position with the Texas Department of Transportation to the Seguin office in November of 2015, the same month that they were married! The couple especially enjoys spending time together hunting, which is Kevin’s passion.

Dr. Weinman is blessed with a beautiful daughter, Janelle Brooke, who graduated from Seguin High School in May 2014. Janelle is currently attending St. Olaf College in Northfield, Minnesota, a private Lutheran college where she is pursuing an undergraduate degree in biology. Janelle decided to do her undergraduate studies away from Seguin to gain a broader prospective of the world, as she hopes to one day return to Seguin as a dental or medical professional.

The heritage of a Lutheran education runs deep in Dr. Weinman’s family, as both of Dr. Weinman’s parents, all five of her siblings, and numerous family members have attended Texas Lutheran University. The Vlasak Family Scholarship has been established in praise and thanksgiving for the wonderful foundation TLU has given to so many of the family members.

Dr. Weinman’s favorite pastime activities are spending time with the many friends and family she has been blessed with. She also enjoys swimming, reading, and watching basketball.

Dr. Forrest Anthony Arguelles

Dr. Forrest Arguelles attended Texas Tech University for his undergraduate studies, earning a Bachelor of Science degree in chemistry, with a minor in biology. He then attended the University of Texas School of Dentistry at Houston, graduating in 2016. Dr. Arguelles is an avid attendee of continuing education courses and continues to advance his dental knowledge and skills frequently, and has received advanced training in sedation dentistry.

Dr. Arguelles is a member of several professional organizations, including the American Dental Association, the Texas Dental Association and the Academy of General Dentistry. As a dentist, he makes it his goal to provide the best and most gentle care he possible can and to give his patients an amazing experience in the dental office.

Dr. Arguelles and his wife, Courtney, are expecting their first child in March, and they have a dog named Kevin. His hobbies include carpentry, hunting, working out, being outdoors and watching Disney movies with his family. He is also a huge fan of the Astros, the Rockets and Harry Potter.


Meet Our Team


Crystal Guerra, Office Manager
Crystal was introduced to our practice in October of 2008 as an extern in training from Kaplan Career Institute. She was then offered a position as a Registered Dental Assistant and is even certified to place sealants and to do coronal polishing. Crystal has now been promoted to Office Manager, specializing in scheduling and accounts receivable. Crystal loves her job and being part of a great TEAM, which strives to create and maintain beautiful smiles! She enjoys spending her free time with her husband, Michael, and their children.


Sharon Herbold, Business Assistant
Sharon joined Dr. Weinman’s TEAM when she opened her state-of-the-art practice in July 2008. Sharon is a 1980 graduate of Texas Lutheran College, where she earned a B.A. in Accounting. Sharon’s responsibilities include patient scheduling, the input and maintenance of patient records, accounts receivables, billing, insurance matters, and various other day-to-day operations of the office. Sharon likes spending time with her family, baking, and truly enjoys reading a good book.


Shyla Vick, Business Assistant
Shyla Vick joined Dr. Weinman’s TEAM on March 2, 2016. She is a native of West Texas, spending most of her youth in Seminole. After graduating high school, she moved to Missouri, where she completed her certification as a paralegal. Shyla felt the need to be closer to family, so in 2006 she came back to Texas, making her home in New Braunfels. In 2013, she married Randy, and together they are very busy with their four children. Shyla and Randy enjoy traveling, shopping, and spending quality time with their family.


Lindsay May, Marketing Manager
Lindsay joined the Seguin Smiles TEAM in January 2013 as our Marketing Manager. In 2005 she attended San Antonio College of Medical and Dental Assistant, where she received her Dental Assistant Certificate. Then, in 2009, she earned her Coronal Polish and Sealant Certification. She loves educating people and children in the community about dentistry and oral health. Lindsay’s favorite thing about working at Seguin Smiles is the Christian atmosphere and that everyone that walks through our door is treated like family. When Lindsay is not working, she loves spending her time with her husband, Brandon, and their two children. She also enjoys antique shopping and making wood projects.


Luisa Rodriguez, Registered Dental Assistant
Luisa was born in Eagle Pass but has lived in Seguin all her life. She graduated from Seguin High School in 2009, and then attended Texas State University for her dental assisting certification. Luisa loves the atmosphere at Seguin Smiles and enjoys meeting new people. When Luisa is not working, she enjoys shopping, playing basketball, and spending time with her daughter.


Tiarra Miranda, Registered Dental Assistant
Tiarra joined the Seguin Smiles TEAM in June 2016. Tiarra attended Texas State University, where she graduated with a dental assistant certification. Tiarra’s favorite things about working at Seguin Smiles are the friendly environment and getting to know the patients. Tiarra is from New Braunfels, and she recently moved to Seguin after marrying her husband, Gabriel, in October. Outside of work, Tiarra loves to spend time with her husband, fur babies, and their families.


Anthony Castillo, Registered Dental Assistant
Anthony was born and raised in Seguin and graduated from Seguin High School in 2014. Anthony attended Texas State University, where he graduated with a Dental Assisting Certification. Anthony started his externship at Seguin Smiles, which lead him to join the TEAM in August 2017. Some of Anthony’s favorite things about Seguin Smiles are the friendly atmosphere and the characteristics of the patients. In Anthony’s spare time, he likes to work on art projects that consist of drawings and paintings. Anthony also enjoys spending time outside with his dogs, and the company of his friends.


Tiffany Frothingham, Registered Dental Hygienist
Tiffany joined the Seguin Smiles TEAM in August 2013. She graduated with honors The University of Texas Health Science Center at San Antonio in 2011, achieving a bachelor’s degree in dental hygiene. She was president of her graduating class, which included leading her fellow hygiene students and assisting in impetrative decisions for the class. Like some of the other members of the TEAM, she also attended Texas Lutheran University for a short period of time. Tiffany has some experience in dental assisting, as well as hygiene recall and insurance.

Tiffany has been with her husband, Jeff, for six years, and they have a been married for two years. They recently had their first baby girl named Kylie, and she is the light of their lives! She enjoys spending her time with her family and friends in her free time. She also enjoys hunting and being outdoors!


Becca Klaus, Registered Dental Hygienist
Becca joined the Seguin Smiles TEAM in December 2014. After becoming a dental assistant, Becca fell in love with the preventative nature of dental hygiene, so she went back to school to pursue becoming a dental hygienist. She graduated with honors in 2012 from Coastal Bend College in Beeville, Texas. Becca was honored to deliver the commencement speech at her graduation ceremony and was awarded the Hu-Friedy Golden Scaler Award for her outstanding performance as a dental hygiene clinician. In addition to dental hygiene, and dental assisting, Becca also has experience with dental insurance and scheduling. Becca is married to Danny, and they have three children: Noah, Tyler, Savannah. They also have four dogs. Outside of the office, she enjoys fishing and kayaking.


Amanda Zunker, Registered Dental Hygienist
Amanda joined our Seguin Smiles TEAM in August 2016. She graduated Summa Cum Lade in 2012 from the University of Texas Health Science Center in San Antonio with a Bachelor’s of Science in Dental Hygiene. Amanda enjoys working for Seguin Smiles because this office is a patient-centered practice where the main goal is to treat and educate our patients on ways to make their oral health the best that it can be. Amanda has been married to her husband, Kade, since 2012. They are first-time parents to their baby boy, Lucas, and they could not be happier to have this joy in their life. Kade and Amanda are currently working on building their new home in Marion, Texas, where they can be close to their families.


Amy Goff, Hygiene Coordinator
We are very excited to have Amy become part of our Seguin Smiles TEAM as our new Hygiene Coordinator. She brings to the practice many years of experience in the dental field. Fourteen of those years were spent as a pediatric dental assistant. Her bubbly personality, dental knowledge, and great people skills make her a perfect fit for our office. In her free time, Amy enjoys motorcycle rides, spending time with her family, camping, and taking trips to the beach.