Dr. Nicholas Leon-Guerrero, DDS, Arlington, VA

About Dr. Nicholas Leon-Guerrero

Dr. Nicholas Leon-Guerrero is a board-certified endodontist who pairs meticulous technique with a calm, steady presence that immediately puts patients at ease. He has advanced training in conventional, regenerative, minimally invasive, and surgical endodontics, with a focus on preserving natural teeth while relieving pain as quickly and comfortably as possible. As a Diplomate of the American Board of Endodontics — a distinction held by fewer than one-quarter of endodontists nationwide — he is committed to the profession’s highest standards. Patients appreciate his gentle chairside manner and his thoughtful use of advanced technology to enhance comfort, predictability, and healing. Dr. Leon-Guerrero is honored to bring his expertise to Omni Endodontics in Arlington, Virginia, where a modern, calming environment and patient-first philosophy guide every decision. He begins each visit by listening closely to the patient’s symptoms, personal history, and goals, then takes the full picture into account to help them make thoughtful, informed decisions about their care. Outside the operatory, he maintains a strong commitment to service and education. He volunteers regularly at the Northern Virginia Community Dental Clinic and has provided humanitarian dental care in underserved communities across the world. He serves on the Executive Committee of the Northern Virginia Dental Society and previously sat on the Alumni Executive Committee of Columbia University College of Dental Medicine. Dr. Leon-Guerrero is recognized as a Fellow of the Virginia Dental Association for his contributions to organized dentistry. These leadership roles reflect his dedication to advancing the profession and mentoring the next generation. At home, he recharges through strength training, travel, and weekend adventures with his wife and young daughter — a balance that reinforces the empathy, attentiveness, and compassion he brings to each patient interaction.

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Popular visit reasons

CT Scan - Teeth (Dental Scan)

Dental Consultation

Dental Emergency

Dental Pain

Dental Pain Consultation

Dental Pain Follow Up

Root Canal

Toothache

CT Scan - Teeth (Dental Scan)

Dental Consultation

Dental Emergency

Dental Pain

Office location

Omni Endodontics

2700 S Quincy St, Ste 325, Arlington, VA 22206

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Education and background

Practice names

Omni Endodontics

Board certifications

American Board of Endodontics

Education and training

Dental School - University of the Pacific, Arthur A. Dugoni School of Dentistry, Doctor of Dental Surgery
Columbia University College of Dental Medicine, Certificate in Endodontics

Professional memberships

American Association of Endodontists
American Dental Association
Virginia Dental Association
Pierre Fauchard Academy

Languages spoken

English

Provider's gender

Male

NPI number

1972979607

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Frequently asked questions

How soon can I make an appointment with Dr. Nicholas Leon-Guerrero?

Generally, Dr. Nicholas Leon-Guerrero has appointments available on Zocdoc within 1 week. You can see Dr. Leon-Guerrero's earliest availability on Zocdoc and make an appointment online.

Is Dr. Nicholas Leon-Guerrero accepting new patients?

Dr. Nicholas Leon-Guerrero generally accepts new patients on Zocdoc. You can see Dr. Leon-Guerrero's earliest availability on Zocdoc and schedule an appointment online.

Does Dr. Nicholas Leon-Guerrero accept my insurance?

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Can I make an appointment with Dr. Nicholas Leon-Guerrero online?

Yes, you can make an appointment online with Dr. Leon-Guerrero using Zocdoc. It’s simple, secure, and free.

What practice does Dr. Nicholas Leon-Guerrero work with?

Dr. Nicholas Leon-Guerrero works with Omni Endodontics.

Where is Dr. Nicholas Leon-Guerrero's office located?

Dr. Nicholas Leon-Guerrero's office is located at 2700 S Quincy St, Arlington, VA 22206.

Which board certifications does Dr. Nicholas Leon-Guerrero have?

Dr. Nicholas Leon-Guerrero is certified by American Board of Endodontics.

What are common reasons for patients to see Dr. Nicholas Leon-Guerrero?

Dr. Nicholas Leon-Guerrero frequently sees patients for Dental Consultation, Dental Emergency, Dental Pain, Root Canal, and Toothache. You can see other visit reasons for Dr. Nicholas Leon-Guerrero on their profile.