elaine h. o'brien, dmd

General Dentist

Dr. Elaine O’Brien grew up in Drexel Hill, PA.  She graduated from Villanova University with a Bachelor of Science degree in Biology.  Continuing her education, she received her Doctor of Dental Medicine (DMD) degree from Temple University School of Dental Medicine in Philadelphia.  Dr. O’Brien worked in Philadelphia before moving to Plymouth in 1987 with her husband.  She has been growing her practice here ever since.

Dr. O’Brien’s experience and leadership skills have allowed her to develop a successful practice where both her patients and staff have come to love her. Her kind and calm demeanor in combination with a gentle hand allows patients to have an enjoyable dental experience.

Dr. O’Brien likes to hike, ski, kayak, and spend time with her family.  She enjoyed watching her twins, Joann and Sean, grow up and both pursue careers in dentistry.  As many people know, she especially loves her Belgian Tervuren dog, Shannon, and takes her for walks around Plymouth.

Affiliations:

  • American Dental Association (ADA)
  • Massachusetts Dental Society
  • South Shore District Dental Society
  • New England Dental Society
  • Mayflower Study Group

Joann h. o'brien, dmd

General Dentist

Dr. Joann O’Brien was born and raised in Plymouth, MA alongside her twin brother, Sean.  She attended Sacred Heart in Kingston from kindergarten through high school and received a Bachelor of Arts in Cell and Molecular Biological Sciences with a minor in Human Development from Connecticut College.

Dr. O’Brien decided to follow in her parents’ footsteps and chose a career in dentistry.  She graduated from Tufts University School of Dental Medicine in Boston where she earned her DMD degree.  While at Tufts, Dr. O’Brien was awarded the Dean’s Research Honors Scholarship and conducted research under Dr. Jonathan Garlick at the Center for Tissue Integrated Engineering in the Department of Oral and Maxillofacial Pathology.  Dr. O’Brien was inducted into the Robert Andrews Honors Society and was awarded the Johansen Scholarship Award. She also served as the Community Service Chair and Public Relations Representative for the Student Research Group.

Dr. O’Brien completed an externship at the Community Health Center of Cape Cod where she provided dental care to under-served patients.  After dental school, she continued her education by completing an Advanced Education in General Dentistry residency program through NYU Lutheran Medical Center.  She provided dental care to patients at the Charles River Community Health Center in Brighton.

Dr. O'Brien enjoys running, spending time with her family and friends, traveling, skiing, and photography. She brings her passion for dentistry and organizational skills to the practice and looks forward to serving the community in which she was raised.

Affiliations:

  • American Dental Association (ADA)
  • Massachusetts Dental Society
  • South Shore District Dental Society
  • New England Dental Society
  • Mayflower Study Group

Heather sivertsen, rdh

Dental Hygienist

A dental hygienist since 2001, Heather joined Dr. Elaine O’Brien’s practice in 2003.  She performs dental cleanings, periodontal evaluations as well as oral cancer screenings.  Her top priorities are patient care, comfort, and relationships.  Strongly believing that all members of the dental practice are crucial, Heather appreciates the teamwork present in the practice.  Her approachable nature makes patients feel comfortable during their recall appointments.  She resides in Plymouth where she enjoys raising her three sons.


Jill Horrigan, RDH

Dental Hygienist

Jill has been a resident of Carver, MA for over 30 years.  She attended Carver High School and graduated in 1996.  In 2005, she received an Associate Degree in Science and then decided to pursue an Associate Degree in Dental Hygiene, which she earned in 2007.  Jill’s sense of humor keeps both our patients and staff laughing.  She values the time she gets to spend with her family, including her three brothers and nephew.  Jill enjoys vacationing, shopping, exercising, cleaning, and spending time with her friends.


Heather Costley, RDA

Dental Assistant

Heather attended Health Care Training Services in Fall River to complete her Dental Assisting training in 2009.  She has worked in multiple dental settings including Mass General Hospital.  Heather began working with Dr. Elaine O’Brien in 2014 at which time she was given the nickname H20 since she was the second "Heather" to join our team.  Everyone appreciates her dedication to keeping our office running smoothly.  Heather is an avid walker and often explores downtown.  She loves to do all types of arts and crafts and enjoys baking, especially with her young daughter, Starr.


Final Claire.jpg

CLAIRE LESTER, CDA

Dental Assistant

Claire completed her Dental Assisting training program at Massasoit Community College.  She joins our practice with 23 years of experience as a Dental Assistant.  Our office appreciates her willingness to perform any task needed and for being a team player.  Claire enjoys living in Plymouth, especially because she can be close to the ocean.  During her free time, she likes to go on hikes and ride her bike.


Mary Perry

Insurance Coordinator

Mary has been working in the dental field for 41 years as a dental assistant and more recently as an insurance coordinator.  She has been with Dr. Elaine O’Brien’s office for 10 years.  She enjoys the variety that each day brings in the dental practice.  Mary’s work ethic and attention to detail are two qualities that we are grateful for.  A Plymouth resident, Mary enjoys spending time with her family and her four grandchildren.  She also enjoys walking and gardening.


Liz Brennan

Front Desk Receptionist

Liz has been a part of the front office staff for Dr. Elaine O’Brien for 10 years.  She is an integral part of our team and often says that the staff in our practice is her second family.  We appreciate her hard work and dedication to the team.  Our patients find it comforting to see a familiar face upon entering the office.  Liz enjoys cooking, reading, and going to the beach.  She also loves spending time with her husband and family, especially her grandson.


Ann Dempster

Front Desk Receptionist

Ann has worked in a dental setting for 35 years.  She was a dental assistant for Dr. Elaine O’Brien for 15 years, but has now joined our front desk team.  Ann is an irreplaceable team member in our office as she has become very popular among our patients.  Her sense of humor makes our patients feel welcome and comfortable.  Ann raised her children in the area and enjoys watching her grandchildren grow up in the same community.  She loves going to the gym, playing Mahjong, and getting together with family and friends.


JUDY SIMMONS

Front Desk Receptionist

Judy completed training in patient communication, insurance, and financial management through the Yankee Dental Congress.  She has many years of experience as a patient and financial coordinator.  Judy helps patients with different financing options as well as explaining insurance benefits to patients.  She is a valuable team member in our practice.  Prior to her front desk training, Judy and her husband owned and operated a dental laboratory, allowing her to have expanded knowledge in dental techniques and prosthodontics.  Judy enjoys riding her bike and walking her Australian Shepherd.


Photos courtesy of Jennifer Denizard Photography.