Meet our Team
Dr. Daniel Jammal
Daniel Jammal DMD is excited to join Hartnett Dental Care to take care of our
growing dental family with a focus on general dentistry, sedation dentistry,
sleep apnea and oral surgery.
Having grown up around teeth his whole life (his mother is also a dentist),
Dr. Jammal has a great appreciation for the strong doctor/patient relationship.
He is a very outgoing and friendly individual and we’re so happy to have him
join us. Dr. Jammal has a unique way of connecting with his patients. Not only
is he a great dentist, he’s an all-around great guy too.
A native WNY-er, he graduated from Boston University Dental School where he
was awarded an Excellence in Oral Biology Designation upon graduation.
In his free time, he enjoys sailing, skiing, and spending time with family
& friends and planning his upcoming wedding next year.
Patti Voit, RDH, Office Manager and Treatment Coordinator
Patti has worked in the dental field for over 20 years and started her career as a Dental Assistant for Hartnett Dental Care. In 2005 she earned her Associate Degree in Dental Hygiene from Erie Community College and is a member of the Dental Hygiene Honor Society. She practiced dental hygiene in other dental offices after graduation, and returned to Dr. Hartnett’s office in 2013 to assume the role of Office Manager and Treatment Coordinator. In this role, she is responsible for managing the day to day operations of the practice and for making sure patients receive the quality care they deserve.
Like our Dentists, Patti is also a strong proponent in education and providing the latest education to patients, and is also a member of the American Association of Dental Office Managers.
Patti lives in Colden with her husband, Dan. They have 3 sons and two beautiful granddaughters.
When she is not managing the practice, Patti enjoys spending time with her family and friends as well as going to the beach or hitting the ski slopes.
Diane Hagelin, RDH
Diane has been a Dental Hygienist for over 40 years practicing with Hartnett Dental Care for over 30 years. She loves her work and enjoys helping patients achieve overall oral health.
Diane graduated from Erie Community College with an honorary award from the Eighth District Dental Society.
Diane and her husband Eric, grew up in Hamburg, NY and still reside there today. They have three daughters and 4 grandchildren. When she is not practicing dentistry she is enjoys working in the garden, hiking, playing piano and most of all, being a Grandma.
Ellen Puckett, RDH
Ellen has been practicing dental hygiene for over 20 years and been with Hartnett Dental Care for fourteen of them. She is a graduate of Erie Community College where she received an Associate’s Degree in Applied Science. She was recognized with an award for patient management.
When she is not practicing dentistry she is working in her dance studio where she teaches children to dance.
Sandy Kwietniewski, RDH
Sandy has been a Dental Hygenist for 15 years and has been with Hartnett Dental Care for 14 years. She is a graduate of Erie Community College where she earned her degree in Dental Hygiene.
Sandy was raised in the Town of Hamburg, NY and still lives there today. Sandy is the proud mother of two sons.
When she is not practicing dentistry, she enjoys music, being outdoors, and spending time with my family and friends.
Pattie is the the smiling face you see at Hartnett Dental Care front desk. She is the Dental Benefits and Treatment Coordinator and she has been working for Hartnett Dental Care for over twenty years.
She lives in Lakeview with her husband Michael. They have three daughters and three granddaughters. When she is not working in the practice she enjoys traveling, camping, gardening and spending time with family.