Meet Dr. Ngo & Dr. Costello
Experienced, compassionate, and eco-friendly dentists proudly serving Philadelphia and Washington Crossing since 2006.
- Eco-Friendly Dentistry
- Open Saturdays
- Advanced Restorative & Cosmetic Care
- Personalized Patient Experience
Dedicated to Comfortable & Modern Dental Care
At Dentists on Washington, Dr. Duyen Ngo and Dr. William J. Costello III are committed to providing high-quality dental care in a welcoming and patient-focused environment. From preventive dentistry to advanced cosmetic and restorative procedures, their goal is to help every patient achieve a healthy and confident smile.
Their practice proudly focuses on eco-friendly dentistry while offering flexible Saturday appointments for busy patients and families.
Dr. Duyen Ngo, DMD
Dr. Duyen Ngo graduated from Temple University School of Dentistry in 2006 and was inducted into the prestigious Omicron Kappa Upsilon National Dental Honor Society for graduating among the top students in her class.
She is highly experienced in restorative and cosmetic dentistry, with particular interest in:
- Cosmetic Dentistry
- Crown & Bridge Procedures
- Invisalign Treatment
- Smile Restoration
Dr. Ngo is passionate about creating a comfortable dental experience while delivering natural-looking, long-lasting results for her patients. Outside the office, she enjoys spending time with her husband and their three children.
Dr. William J. Costello III, DMD
Dr. William Costello III also graduated from Temple University School of Dentistry in 2006 and received the Auerbach Memorial Award for outstanding academic achievement, clinical excellence, and strong moral character.
Over the years, Dr. Costello has been recognized among:
- Top Dentists of South Jersey
- Philadelphia’s Top Dentists
He is known for providing personalized dental care with a strong focus on patient comfort and long-term oral health. When away from the office, Dr. Costello enjoys spending time with family and surfing whenever possible.
Why Patients Choose Dentists on Washington
Experienced Dentists
Serving Philadelphia patients with trusted dental care since 2006.
Eco-Friendly Dentistry
Committed to environmentally conscious dental practices and modern technology.
Saturday Appointments
Flexible scheduling options for busy families and working professionals.
Comprehensive Dental Services
From cleanings to cosmetic and restorative dentistry, complete care under one roof.
Patient
Testimonials
Patients at Dentists on Washington consistently praise the practice for its gentle, painless care and highly professional staff. Reviewers frequently highlight the expertise of Dr. Ngo and Dr. Costello, noting that they take the time to explain procedures thoroughly and make even the most anxious patients feel comfortable. People also appreciate the modern, eco-friendly “green dentistry” approach, which combines advanced technology with a commitment to environmental wellness. Overall, the feedback reflects a welcoming atmosphere where patients feel like their health and time are genuinely valued.
Frequently Asked Questions
Where did Dr. Ngo and Dr. Costello attend dental school?
Both Dr. Duyen Ngo and Dr. William J. Costello III graduated from Temple University School of Dentistry in 2006.
What dental services do Dr. Ngo and Dr. Costello provide?
They provide preventive, cosmetic, restorative, crown & bridge, Invisalign, and general dental care.
Is the practice open on Saturdays?
Yes, Dentists on Washington offers Saturday appointments for added convenience.
What makes Dentists on Washington unique?
The practice focuses on eco-friendly dentistry while providing modern, patient-focused dental care.
Are new patients welcome?
Yes, the office welcomes new patients in Philadelphia and Washington Crossing.
Do the doctors focus on cosmetic dentistry?
Yes, cosmetic and restorative dentistry are among their primary areas of expertise.
How long have Dr. Ngo and Dr. Costello been practicing?
They have been practicing dentistry and serving patients since 2006.
Schedule Your Visit with Our Dental Team
Experience compassionate, modern dental care from a team dedicated to your comfort and long-term oral health.