About Your Dentist

Brian Cahill, DDS

My Mission

“To provide my patients with the highest quality care.”

Education & Continuing Education

Doctor of Dental Surgery The Medical College of Virginia – Richmond, Virginia (1999)

Bachelor of Science Arizona State University – Tempe, Arizona (1994)

Following graduation from dental school, Dr. Cahill opened and operated a highly successful family practice in Mesa, Arizona, and has participated in hundreds of hours of post-graduate continuing education, with special emphasis on cosmetic and implant dentistry. Additionally, he has extensive training in all aspects of General Dentistry including routine restorative care, crowns and bridges, root canals, veneers, implant restorations, and Invisalign.

Life & Hobbies

Dr. Cahill is married to his lovely wife, Laurie, and the couple has three wonderful children- Dustin, Ashley, and Tyler.

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Angel Lopez, DMD

My Mission

“To provide my patients with the best possible care.”

Education & Continuing Education

Doctor of Dental Surgery
University of Puerto Rico – San Juan, Puerto Rico (1988)

Doctor of Medicine
University of Puerto Rico – San Juan, Puerto Rico (1988)

Dr. Lopez is fully bilingual in English and Spanish and is continually participating in advanced training and continuing education. He concentrates his practice on oral rehabilitation with strong cosmetic and endodontic components.

Professional Memberships

Dr. Lopez is a faculty member at the University of Puerto Rico, the University of Massachusetts, and Harvard University. He is also a member of several professional dental organizations, including the American Dental Association, the North Carolina Dental Society, and the Hispanic Dental Association.

Life & Hobbies

Dr. Lopez is married to his beautiful wife and is the proud father of three young adults and one grandchild. When he isn’t at the office, he enjoys coaching youth sports and mentoring young clinicians to help them in their career path.

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Mark Walker, DDS

My Mission

"To make sure that patients receive my full attention and expertise whether for extensive care or simple routine care. I provide straightforward solutions to assist you in developing your care plan and bring a thorough, caring, and honest style to dentistry with a kind approach. My consistent desire to keep abreast of advancements in dentistry motivates my continued dedication to the profession, and to the quality of care for you and your family.”

Education & Continuing Education

Doctor of Dental Surgery University of New York at Buffalo School of Dental Medicine – Buffalo, New York Honors: Cum Laude

Bachelor of Arts in Biology

University of New York at Buffalo – Buffalo, New York

Throughout his career, Dr. Walker has continued his education with an emphasis in comprehensive restorative dentistry, cosmetic dentistry, and TMD/chronic facial pain therapy. In the last twelve years, he has completed well over 1300 hours of continuing education to be able to bring the best and most current care to the families he cares for. Dr. Walker is a provider of Invisalign® and has extensive training and experience in Comprehensive Restorative Dentistry, Dental Sleep Medicine, and Therapeutic Chronic Pain/TMJ Management.

Life & Hobbies

Dr. Walker has practiced dentistry in New York, Colorado, and Albuquerque, New Mexico, where he established his former practice. After nearly 15 years in the desert, Dr. Walker decided to move back to the east coast, choosing North Carolina for his new home.

When he isn’t at the office, Dr. Walker and his wife Karen, a teacher, enjoy spending time with their family. The couple is very proud of their daughter, who is in high school, and their son, who is in the U.S. Army. During his free time, Dr. Walker enjoys running/fitness, traveling, and landscaping.

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Lalita Nekkanti, DMD

“Be kind to your dentist – he has ‘fillings’ too.”

My Mission

“Growing up in New Jersey and India, I had several cavities. Sealants and fluoridated water were never an option for me while I was living in India. Once I returned to NJ, I had my cavities filled at my local dentist. Personally, I was always scared before dental visits. My dentist, however, always had a way of calming me before appointments and making me as comfortable as possible to get my cavities filled.

I decided to become a dentist based on my own experiences as a patient. My childhood dentist inspired me to enter a profession where I would serve a community in need and in fear of dental care. I hope to engage my patients in their treatment and reduce their anxiety from dental procedures at Holly Springs.”

Education & Continuing Education

Doctor of Dental Medicine
Tufts University School of Dental Medicine – Boston, Massachusetts

Master’s in Public Health
Bachelor of Science in Biochemistry/Molecular Biology, Women’s and Gender Studies
Drew University – Madison, New Jersey

Dr. Nekkanti is a certified Invisalign provider and has received CEREC CAD/CAM certification.

Professional Memberships

Dr. Nekkanti is an active member of the American Dental Association.

Life & Hobbies

Dr. Nekkanti grew up in New Jersey but spent some time in India as a child. She’s a former Varsity Tennis player, and in her free time, she enjoys playing tennis or practicing/teaching yoga (she is also a Registered Yoga Teacher with over 200 hours of training!)