Our Dental Team Helps You Get a Beautiful Smile & Better Health in Collegeville & South Williamsport

Our dental team at the LANAP and Implant Center has many decades of experience and a shared love of putting patients first. Learn more about how they will care for you below.

Allison Parks


Registered Dental Hygienist

Allison graduated with honors, receiving an associate’s degree in dental hygiene from Pennsylvania College of Technology in 2006. She’s been working in both periodontics and general dentistry since that time. Starting at the age of 14, Allison worked as an assistant to the hygienists for A. David Parks, DMD, Periodontist (her dad). During her high school years, she trained to be a periodontal surgical assistant, and finally she trained to fulfill the position of office manager.

She is dedicated to providing a high standard of care for the patients she treats, and she enjoys personal patient interaction as well. She truly cares about each individual patient while simultaneously providing quality hygiene care in a structured and organized manner. Her goals are to make every patient feel comfortable and at ease during treatment, to educate each patient about the state of his or her mouth, and to make appropriate treatment recommendations addressing each patient’s particular needs.

What Allison finds exciting and unique about Dr. David DiGiallorenzo’s office is the variety of treatment options used to achieve optimum oral health for our patients. In addressing oral issues, Dr. DiGiallorenzo also looks at the body as a whole and how the oral situation affects it.

Angie Yi


Director of Patient Relations - Collegeville

Angie brings more than 15 years’ experience in office management and billing management to our practice. She had extensive experience in assisting oncology and end-stage renal patients with their medical, emotional, and financial concerns at three Philadelphia hospitals. She has full knowledge of the day-to-day operations of a medical practice, from initial consultations to navigating the intricacies of insurance.

A graduate of Moravian College, Angie is thrilled to join Dr. DiGiallorenzo’s team and add her patient care–centric philosophy to such an innovative, holistic practice that puts patient comfort first. As Director of Patient Relations, Angie is the first point of contact for both new and existing patients. She enjoys helping patients on their journey to achieving healthy gums, a beautiful smile, and better health, and overcoming their dental fears from previous bad experiences.

In her spare time, Angie is an avid reader, plays tennis, and enjoys spending time with family and friends. She’s looking forward to traveling again once her sons get a little older.


Expanded Functions Dental Assistant

Anne is a Pennsylvania licensed expanded functions dental assistant (EFDA) and graduate of the Keystone Technical Institute in Harrisburg, PA. Anne has been in the dental field since 2008 and concentrated in specialty practices where she can provide dental care and encouragement for patients undergoing complex and advanced treatment. She has been assisting in prosthodontics and periodontics.

She is competent in advanced procedures such as PRGF – Phlebotomy (plasma rich in growth factors), dental implant placement, denture adjusting and relining, temporary restorative fabrication and placement, occlusal adjustments with crown and bridge and dentures, biostimulation therapy, LANAP laser treatment, and many elective and surgical therapies. Anne also is involved in patient education and consultations.

Anne has a passion for and demonstrates a genuine nurturing and empathetic spirit for patients and in building a team approach to care for patients and staff. Her goal is to maintain and continually grow through continuing education and experience to reach the highest level of skill, dental care, and expertise for patients. Her enthusiasm and willingness to care for patients (enhanced through her own experience as a patient) and love for dentistry create a comforting presence for patients.

Brenda Kline


Registered Dental Hygienist & Director of Treatment Planning - South Williamsport

Brenda has worked in the dental field since 1997. She furthered her education at Pennsylvania College of Technology with her husband’s encouragement. Brenda graduated in 2003 with an associate’s degree in dental hygiene and worked in a general practice for eight years. It took determination for her to get through the hygiene program while caring for two small children, and she takes this same determination into her work ethic and caring for her patients. Working for Dr. DiGiallorenzo has opened her up to new experiences, and she is glad to have received this opportunity.

Char Saulino


A native of Ohio, Char attended the University of Toledo before moving to Philadelphia. She received her degree in Applied Sciences and Dental Hygiene from Community College of Philadelphia. She completed clinical rotations at the University of Pennsylvania School of Dental Medicine. She continued her education to earn her Public Health Dental Hygiene Practitioners license and anesthesia license.

She has worked in all facets of dental hygiene, from pediatrics to geriatrics. As a Public Health Dental Hygiene Practitioner, she’s provided direct patient care in rehabilitation centers and assisted-living facilities and has volunteered at clinics for the disadvantaged. She’s passionate about continuing education. She is excited to be involved with a skilled team that incorporates less invasive, more holistic options for patients. An empathetic clinician, she is dedicated to providing personalized care to help patients achieve optimal health.

Char resides in Montgomery County with her husband and three children. Her family enjoys volunteering in our community: collecting, packaging, and delivering holiday dinners or raising awareness for mental health and suicide prevention. She enjoys entertaining, cooking, and crafting. She loves to travel, especially beach vacations with her family. They recently found a dog-friendly hotel so they could include Duke, her daughters’ German shepherd.

Di Giallorenzo Staff Cheryl


Massage Therapist & Reflexologist - South Williamsport

Cheryl joined our staff as a licensed massage therapist and relaxation specialist in 2009. She received her education from Pennsylvania State University and Mt. Nittany School of Natural Health. She has worked in the healing arts for more than 30 years in sports rehabilitation centers, pain clinics, elder care facilities, hospitals, and chiropractic practices in California, Colorado, and her native state of Pennsylvania.

Cheryl provides therapeutic massage and reflexology to our patients during their treatments and surgical procedures. She is delighted to have found a dental office that incorporates massage as an integral part of its care and treatment plan. The goal of her treatment is to relieve tension, calm and balance the nervous system, improve circulation to expedite healing, relieve sinus congestion, improve digestion, help remove anesthesia from tissues, and act as a liaison between the doctor and the patient.

For fun, Cheryl enjoys travel, exploring other cultures, and meeting people from all walks of life. She’s visited many countries around the world, speaks fluent Spanish, and is a professional pianist and vocalist.


Director of Patient Relations - South Williamsport

Karen graduated from Pennsylvania College of Technology in 1996 with an associate’s degree in medical office administration and has been with our practice ever since. As the director of patient relations, Karen schedules all appointments, takes care of all insurance billing, and meets with patients to discuss and arrange financial plans. Her favorite thing about working for Dr. DiGiallorenzo is the opportunity to meet new people. She enjoys knowing that she plays a part in helping patients make great dental decisions. She is compassionate and understanding when it comes to patient needs and is also very organized and reliable.

Karen has been married for more than eight years and has a young son. She thinks spending time with family and friends is the most important thing she can do.

Leslie Smith


Registered Dental Hygienist

Leslie has been practicing dental hygiene continually for 30-plus years. Her entire career has focused on periodontics and has included many years in general dentistry as well. Her experience gives her a wealth of knowledge to share with patients and allows her to best assist them in decisions regarding optimal oral health and tooth replacement.

Born and raised in Florida, she attended college in South Williamsport, PA. She and her husband are parents of four children and have one grandchild. Her favorite hobbies include kayaking and sewing. She has a very strong interest in nutrition and healthy lifestyles.

She enjoys working with the most modern dental techniques, paired with a holistic approach, at the LANAP and Implant Center. Each day brings new exciting challenges and incredible fulfillment.

Di Giallorenzo Staff Marta


Bio coming soon.

Sandy Metzger


Dental & Surgical Assistant - Collegeville

Sandy entered the dental field right out of high school. She started out at the front desk in reception but then developed an interest in the clinical aspects of dentistry. She trained chairside as a dental assistant and obtained her X-ray certification. After many years of working in general dentistry, Sandy had the opportunity to come and work with Dr. DiGiallorenzo at his periodontal office. She worked with him for five years and learned so much about periodontal and implant dentistry. During that time, she also trained to become a certified phlebotomist.

Sandy left Dr. DiGiallorenzo’s practice for a few years to return to general dentistry but realized that periodontal and implant surgery assisting was really her true passion. After returning to work here, she is thrilled to be back doing what she loves. As a trained surgical assistant, she has a passion for helping others and is dedicated to the well-being of the patients under her care. She has also found the practice’s whole-person approach to treatment refreshing.

When not at work, Sandy spends time with her husband, three grown children, and friends. She also loves to travel.

Di Giallorenzo Staff


Bio coming soon!

Meet Dr. D

Dr. David DiGiallorenzo received his training at the University of Pennsylvania in the Department of Periodontics and Periodontal Prosthesis in the early 1990s. His training included prosthodontics, orthodontics, periodontics, and advanced oral reconstructive techniques, including oral implantology.

Call Today to Make an Appointment

Collegeville 610-228-4366
Williamsport 570-505-6908
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