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Welcome to your dental home.


At Greater Portland Health, we understand the importance of oral health for patients' overall well-being at any age. We offer comprehensive dental services for adults at Bayside and for children at Portland High School. In addition, preventive services are offered by dental hygienists on-site at 180 Park Avenue, Riverton Community Center, Portland Public Schools, and South Portland High School.


Through our dental program we are able to offer patients a continuum of care across all of our locations as an integrated medical and dental home. Establishing Greater Portland Health as your dental home allows us to easily coordinate your medical and dental care between your team of healthcare providers. Our re-care system continues to provide dental patients with regular preventative treatment, exams, follow-up treatment, oral health education, appointment confirmations and reminders, referrals, and community outreach to ensure continuous care and long-term oral health. If you require a more complex procedure, a referral will be made to a local specialist. The dental team will assist you with referrals.  

Dental services offered at these sites include:

  • restorative treatment
  • dental exams
  • diagnostic imaging (x-rays)
  • dental sealants
  • extractions
  • treatment plans
  • preventive care including cleanings and fluoride
  • oral health education

Need dental services for your child?

Learn more about our pediatric dental services for children ages 6 months to 21 years through our Children's Oral Health Program. 

Children's Oral Health Program

Dental Locations


Portland High School

Meet the Dental Team

John Fitzsimons, DMD, Dental Director


John earned his DMD at Boston University in 2011 and then completed a general practice residency at Penobscot Healthcare in Bangor.  Following residency, Dr. Fitzsimons served six years at a federally qualified health center in Portsmouth, NH.  He is excited to return to Maine and is looking forward to expanding the scope of services provided in the dental component of this integrated mission. Dr. Fitzsimons is an active member of the Academy of General Dentistry, Maine Dental Association, and the American Dental Association.

Kathy Martin, MS, MA, RDH, Dental Program Manager


Kathy has worked in dental public health for over 20 years, most recently with the City of Portland’s Children’s Oral Health Program. She earned her undergrad degrees in dental hygiene and health education from the University of Maine and holds Masters degrees from the University of Southern Maine and Bangor Theological Seminary. Kathy believes that everyone should have access to comprehensive oral health care. She has a particular interest in oral health as it relates to overall wellness.

Kristen Hoglund, DMD


Dr. Hoglund has proudly served the dental needs residents of northern & southern Maine since 2006 with dental hygiene and as of 2021 as a dentist. She earned her DMD from the University of New England’s College of Dental Medicine. She is passionate about education and prevention for dental health and enjoys diverse treatments and tailoring care to each individual with compassion and honesty. When not practicing dentistry, she enjoys spending time with her husband & three children watching shows, playing games and enjoying the outdoors.

Jenna MacDonald, Dental Hygienist


Jenna MacDonald earned her Master of Science in Dental Hygiene from the University of Bridgeport and her Bachelor of Science in Dental Hygiene from the University of New England. She has been working in dentistry since 2006 with experience as a dental assistant, hygienist, and instructor. Jenna’s hopes to promote and demonstrate the mastery of the clinical skills necessary to provide a high standard of care for all patients.  

Delaney Mullen, Dental Hygienist


Delaney Mullen earned her Bachelor of Science in Dental Hygiene from the University of New England. She worked as a dental assistant before joining the Greater Portland Health team. Delaney has a local anesthesia license. In her role at Greater Portland Health, she enjoys traveling to Portland area schools and working with children. 

Elizabeth Sullivan, Dental Hygienist


Elizabeth Sullivan received her Bachelor of Science in Dental Hygiene from the University of New England. She volunteered with Head Start providing sealants to local students and has experience in providing exceptional preventative and therapeutic care. Elizabeth loves connecting with community members while working as a Dental Hygienist at Greater Portland Health.