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Meet The Team

Our Doctors

Dr. Robert F. Morrison

CEO and Clinical Directo
Dr. Morrison is the owner and founder of Robert F. Morrison, DMD, PC, a General Williamsburg Dentist Practice for children and adults since 1992.

Dr. Morrison founded the practice after returning from being stationed with the U.S. Navy in England with the goal of providing genuine and compassionate care for the families of Williamsburg and the greater Hampton-Roads area.

The practice has grown to incorporate some of the latest dental technologies as well as continue to provide extensive and patient-oriented care for families and individuals. With a great team of Williamsburg dentists and staff, the offices of Morrison Dental Group pride themselves on the personal attention and skill that they can offer their patients. Dr. Morrison graduated from Southern Illinois University with a Bachelor of Science degree in Chemistry in 1979. He attended Southern Illinois University School of Dental Medicine, graduating in 1982, completing a post-doctoral residency in Comprehensive Dentistry. He served as a dental officer ashore and afloat from 1982-1991 in the U.S. Navy and was the dentistry department head afloat the U.S.S. Guam. Dr. Morrison was head of the Pediatric Department from 1987-1988, Dental Clinic, Norfolk Naval Station, Norfolk, Virginia.

Dr. Morrison is married to Alison, who serves as Morrison Dental Group’s CFO. They have two sons: Frank, a LCDR in the United States Coast Guard and Alex, who also works with Morrison Dental Group as the Chief Compliance Officer. In his spare time, Dr. Morrison is a dedicated family man and enjoys fishing on the Chesapeake Bay, as well as kayaking and restoring British MG cars.

Dr. Morrison is a member of the ADA, American Academy of Sleep Medicine, The VDA, the PDA, and the International College of Dentistry.

Dr. Stephen L. Murphy

Dr. Stephen L. Murphy joined Morrison Dental Group in 1996 after retiring from the United States Navy. 

Dr. Murphy and Dr. Morrison served together in the Navy while stationed in England, and they have remained good friends and colleagues ever since. Dr. Murphy brings a wealth of knowledge and experience to the practice, as well as a great deal of compassion, which is much appreciated by his patients.

Dr. Murphy is a graduate of Sacramento State College with a Bachelor of Arts degree. He attended the University of California, Santa Barbara Masters of Scientific Instrumentation Program and is a graduate of the University of California, Los Angeles School of Dentistry. He served as a naval aviator and as an active duty Naval Dentist Officer both ashore and afloat. Dr. Murphy attended the Advanced Clinical Program in General Dentistry at the Naval Regional Dental Center in Norfolk, Virginia. He also attended Command and Staff College at the United States Marine Base in Quantico, Virginia.

Dr. Murphy is on the Board of Advisors for Olde Towne Dental Clinic, a volunteer dentist for Physicians for Peace in the Dominican Republic, and a volunteer at Give Kids A Smile.

Dr. Murphy is married to Marcia. They have 4 children: Kelly, Heather, Eric, and Sean, all of whom are married. He is active in the community. He enjoys classic British car restoration and is an avid cyclist.

Dr. David J. Maharty

Dr. David J. Maharty strongly believes in helping others whenever possible and enjoys boosting patients’ self-confidence. That’s why the dental field is a perfect fit for him. 

Dr. Maharty joins the MDG family with over 20 years of experience and has been able to see how dentistry can change lives for the better. He specializes in dental implants and enjoys seeing his patients have the smile they have always wanted.

Dr. Maharty grew up in Wilkes-Barre, PA, and was recruited in high school to play football at the college level but chose academics over sports. He has a Bachelor of Science from the University of Scranton in Pennsylvania and then went on to the Temple University School of Dentistry in Philadelphia.

Dr. Maharty enjoys being a member of a close-knit community that offers many opportunities for his children. He is married to Kelly, his high school sweetheart from GAR Memorial HS. Together they have three daughters: Morgan Elizabeth, Madison Lynn, and Maleah Audriana. The family has two dogs: Keda, a Goldendoodle, and Khloe, a Golden Retriever rescue. In his spare time, Dr. Maharty enjoys going on vacation with his family, attending sporting events, watching college football, tailgating, coaching softball, traveling, and spending time with friends.

The Maharty family originated a Sports Scholarship Memorial Fund at Avalon Women and Children’s Shelter so that the children there can play recreational sports. The family believes in helping others and giving children the opportunity to grow physically, mentally, and emotionally through team sports.

Dr. Jesus Sanchez

For Dr. Jesús Sánchez, dentistry has been a part of his entire life. Growing up in Puerto Rico, he visited his parents’ dental practice daily and the field always intrigued him. 

As he grew older, Dr. Sánchez realized the importance of his parents’ work, and helping people in their community, which is what fuels his passion for dentistry today. Dr. Sánchez remembers, “As I was growing up, I understood that in the field of dentistry I would be able to do something I enjoy and give back. That mentality of helping people is what drives me to work and do the best that I can.” Dr. Sánchez is thrilled to be a part of Morrison Dental Group and is excited to meet new patients. He is an “eternal student,” constantly looking to learn more about new technologies in the dental field and how he can better serve his patients.

Dr. Sánchez attended the University of Puerto Rico of Dental Medicine and completed two residencies, one being a General Practice Residency at Lehigh Valley Health Network in Allentown, PA, and the second at Newark Beth Israel Medical Center in Newark, NJ with a focus on Oral Surgery.

Dr. Sánchez is a proud Eagle Scout and is looking forward to sharing his love for the outdoors with his children. Dr. Sánchez enjoys spending time with his family, traveling, reading, water sports, and being a part of the community. He is married to his high school sweetheart, Susana, a former dancer and wedding coordinator who now dedicates her days to being a stay-at-home mom for their sons, Lorenzo and Javier. The family lives in Williamsburg with their dog, Emma, whom they adopted from the Humane Society on the couple’s first anniversary.

Dr. Julita Marasigan

Dr. Julita Marasigan was always considered quite the “handyman” growing up in the Philippines. As a young adult, she was not sure what type of work she wanted to do but knew she wanted to help others improve their health. 

Her love for fixing and repairing things and a desire to work in the healthcare field led her to dentistry, and she’s never looked back. Dr. Marasigan said, “I feel a great sense of accomplishment when I have changed another person’s outlook on life because they feel better about their smile.”

Dr. Marasigan grew up in the Philippines but also spent a few years in Zambia. She attended dental school at the University of the Philippines, and then went on to complete a two-year Advanced Education degree in General Dentistry with Lutheran Medical Center in New York. Dr. Marasigan and her family have recently moved to Williamsburg, VA, and they are looking forward to being active members in the community. In the past, she has participated with volunteer outreach programs in the Philippines, and now Dr. Marasigan looks forward to settling down and volunteering here in Williamsburg.

Dr. Marasigan is married to Ariel, a medical technologist. They have a teenage daughter, Faith, who despite being an only child, is very kind and generous. They also have a five-year-old Mini Dachshund named Hershey. In her spare time, Dr. Marasigan is an amateur photographer and furniture restorer. She enjoys finding old pieces of furniture and restoring them to their original glory. Dr. Marasigan and her family also enjoy finding new places to visit, especially historic towns and cities. In addition, they love camping and hiking.

Dr. Loren Masuoka

Dr. Loren Masuoka grew up in Portland, Oregon and attended Lewis and Clark College where he studied Biology. After completing his undergraduate degree, he attended Oregon Health Sciences University where he received his DMD.

After completing dental school, he did a fellowship in general dentistry here in Virginia for one year. Dr. Masuoka spent over 30 years in the Navy before joining the Morrison Dental Group team.

He was first drawn to dentistry because he had an interest in the medical field during undergrad. He saw the type of care he could provide to patients as a dentist and has been driven by that desire to care for people ever since. He loves being able to help someone feel better and improve their dental health, as well as their overall health.

Dr. Masuoka is married to Lorraine and they have two kids – Sawyer and Camden. They are a very athletic family and enjoy running, hiking, travelling and cooking. They also have a corgi/chihuahua mix named Baxter. Dr. Masuoka describes himself as friendly, caring and talkative. He coached youth lacrosse for five years, and both his father and sister are dentists.

Dr. Rafael Siqueira

Dr. Rafael Siqueira is originally from Recife, a beautiful town on the coast of Brazil. He attended the University of Pernambuco in Brazil and graduated from dental school in 2010. 

He then went on to complete a Masters of Implantology which is similar to a US residency program. After completing that, he joined a PhD program at the Federal University of Pernambuco which sent him to the University of Michigan to do research for his master’s thesis. Once he completed his PhD, he headed back to Michigan School of Dentistry for a 3-year residency in Periodontics. During his time in school and residency, he was able to publish over 30 scientific articles in international peer reviewed journals and write five book chapters. This resulted in a few awards over the years. 

Dr. Siqueira’s interest in dentistry started to develop very early in his life by watching his parents who are both dentists. He observed his father teaching students and treating both students and patients with compassionate care. He witnessed a few instances where patients were moved to tears by the results of his father’s care and students whose lives were so strongly impacted by the mentorship his father provided on their path to become a Periodontist or Implantologist. Dr. Siqueira soon realized he wanted to have that same positive impact by being a dentist, educator and researcher.  

Dr. Siqueira describes himself as not only family-oriented and very sociable, but also easy-going and calm. He loves being with friends, having a good time and sharing great food. He is typically very optimistic. He is married to Renata, a lawyer, who just recently gave birth to their first child, Thomas. They do not currently have any pets but hope to add a dog to their family in the near future. Dr. Siqueira is a big sports fan, food lover and loves to travel. His hobbies include playing tennis, watching sports, exploring new restaurants, travelling and meeting new people, and learning new languages. A fun fact about Dr. Siqueira is that he speaks his native language, Portuguese, as well as English, Italian, and can communicate quite well in Spanish. He is currently taking a Spanish course to improve his fluency.

Dr. Joseph Ramahlo

Dr. Ramahlo was first drawn to dentistry because he wanted to connect with patients, but also enjoyed the artistic side of the field where he could work with his hands.

Dr. Joseph Ramahlo grew up in New York and attended BYU for his undergraduate degree in exercise science with a minor in Spanish. He then attended Stony Brook University in Long Island for dental school, as well as completed a residency in Advanced Education in General Dentistry at a VA in Miami.

Dr. Ramahlo enjoys cosmetic dentistry and helping patients look and feel better about themselves. He volunteers with the James River Association River Rats Program to help prevent pollution and maintain the waterways.

Dr. Ramahlo is married with children and they have a family cat and dog. He describes himself as meticulous and a good mix of introverted and extroverted. On the weekends, you can find Dr. Ramahlo hiking, fishing, kayaking, and just enjoying the great outdoors! A fun fact about him is that he speaks Spanish and lived in South America for a few years as a missionary.

Dr. Paul Jiral

Dr. Paul Jiral was raised in Chesapeake, VA, and lived there from 1st grade through high school. He attended James Madison University for his undergraduate degree in education and taught for a year before realizing his desire to go to dental school.

Dr. Jiral attended MCV for his dental education and is a member of the ADA, Academy of General Dentistry, and the VDA. Dr. Jiral is also an approved Invisalign Provider and spent time volunteering with Big Brothers Big Sisters and the Richmond Jaycees.

Dr. Jiral was first drawn to dentistry because he loved the idea of working in the healing arts. He grew up enjoying his experience in the dental office but didn’t pursue the field until he had worked in the “real world” for a year. He is very personable and wanted to do something medical but didn’t like the idea of working in a hospital setting. He also enjoyed working with his hands, so dentistry seemed to be a great fit! Dr. Jiral is motivated each day by the simple pleasures in life like waking up and feeling the sunshine on his skin. He gets a great deal of satisfaction from planning out detailed treatment and seeing it executed perfectly, leaving the patient happy.

In his spare time, Dr. Jiral likes to find unorthodox ways of fixing things in his house and designing his own tools for his athletic hobbies. He considers himself a bit of an inventor. For example, he built his own trailer to pull his kayak behind his bike! His wife, Celia, ran his previous dental office but is retired now. She is on the hunt for her own new adventure! Dr. Jiral and Celia have three adult children and one grandchild who all reside in Virginia. Dr. Jiral describes himself as a well-adjusted middle child and enjoys any athletic activity. He has participated competitively in swimming, football, basketball, baseball, soccer, tennis, alpine skiing, volleyball, archery, track and field, a mini triathlon and wrestling. He enjoys any activity that gets him outside!

Our Staff

Carol Dunkle

Regional Manager

Bio coming soon.

Holly Belena

Office Coordinator

Growing up in a military family, Holly spent most of her time in the great state of Ohio as her dad was in the Navy for 22 years. Holly loves being a part of the dental field and worked previously in the medical field. Holly enjoys learning new things and being a part of such an amazing team.

Holly’s husband, Erick, is in the US Navy. They have two kids, Harley and Autumn. Holly’s furry baby is named Nico. She has four grandsons, Fred, Henry, Zacharias, and Kieran, and it is the highlight of her life to be their Mimi.


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