About Our Practice

At Milliron Dentistry, we’re dedicated to comprehensive, prevention-oriented care that supports both oral health and overall wellness. Our doctors bring decades of experience, advanced training, and a passion for esthetic dentistry, while our hygienists, assistants, and staff provide attentive, compassionate support. Together, we deliver personalized treatment in a warm, professional environment, with a commitment to both our patients and the broader community.

Dr. Dennis Milliron, DDS

Preventive, Restorative & Cosmetic Dentistry

Dr. Milliron offers experienced, comprehensive dental care. A Potomac State and WVU alum, he earned his DDS at WVU and completed executive training at Kellogg. He remains active in organized dentistry and values thoughtful, informed care. Outside the office he enjoys travel, cooking for family, exercise, and time with his pets.

Dr. Karen Kozak, DDS

Preventive, Restorative & Cosmetic Dentistry

Dr. Kozak offers attentive, modern dental care. A Davidson alum and VCU DDS, she completed an AEGD at the Martinsburg VA and actively participates with continued professional education with Pankey and Spear. She meets patients where they are and supports informed decisions. Off-hours she enjoys travel, reading, and family.

Meet Your Dedicated Team

Our hygienists, assistants, and staff bring warmth, skill, and personal attention to every visit. From guiding you through treatment plans to making sure you feel comfortable and cared for, they’re here to support your health and your smile every step of the way.

Marcela Lyles
Dental Hygienist

Marcela radiates warmth, ease, and professionalism to every patient interaction. Known for her friendly demeanor and collaborative spirit, she delivers attentive care while helping each visit feel comfortable, calm, and positive.

Masha Peacock
Dental Hygienist

Masha offers clinical expertise and a patient-centered mindset to every appointment. She is committed to preventive care, patient education, and delivering thorough, attentive treatment with consistency and professionalism.

Asontae Smith
Dental Hygienist

Asontae brings extensive clinical experience and a strong, patient-focused approach. She is skilled at building trust, maintaining lasting relationships, and delivering thoughtful, attentive care with professionalism and confidence.

Sandra Escobar
Dental Assistant

Sandra delivers skilled, attentive care with a calm and professional presence. Known for her focus and precision, she helps patients feel comfortable while supporting the clinical team with consistency, confidence, and respect.

Anna Mitchell
Dental Assistant

Anna grounds the clinical team with experience, insight, and a calm, reassuring presence. With deep knowledge built over years in dentistry, she supports patients and colleagues alike with confidence, care, and steady professionalism.

Sharnae Via
Dental Assistant

As a Dental Assistant, Sharnae is enthusiastic, dependable, and self-motivated, bringing positive energy to every day. She supports patients and the team with care and focus, and is eager to learn, grow, and contribute.

Neyda King
Adm/Dental Assistant

Neyda supports the practice through a versatile blend of administrative and clinical expertise. With a steady, organized approach, she assists patients and staff alike, helping daily operations run smoothly and efficiently.

Joe Ontiveros
Practice Administrator

Joe provides trusted leadership and operational expertise to the practice. As Dr. Milliron’s right-hand partner, he oversees daily operations, supports the team, and ensures the practice runs smoothly with precision, reliability, and care.

Evelyn Ratcliffe
Asst. Office Admin.

Evelyn anchors the practice with decades of institutional knowledge and steady leadership. With over twenty years at Milliron, she understands every detail of operations and supports with unmatched expertise.

Nina Ratcliffe
Client Liaison

Nina brings a fresh perspective and strong organizational focus. She supports clinical and business needs, bridges communication gaps, and upholds daily operations with professionalism and consistent dedication care.

Sydney
Office VIP

As Office VIP, Sydney charms the whole team with radar ears, velvet brindle, and a serious-yet-silly head tilt. She welcomes guests, boosts morale, and inspects snack breaks—ensuring every visit feels warmer, lighter, and more wag-filled.

Call us now at

1-202-618-0964