• David Palmieri, D.M.D., M.S. ​
  • Nathan Schoenly, D.D.S. ​
  • Frank R. Portell, D.M.D., M.S.​
  • Nicholas Leon-Guerrero D.D.S.

Office Locations

Office Parking

ALEXANDRIA

FALLS CHURCH

ARLINGTON

Technology

Digital Radiography

We use computerized x-rays, called digital radiography, which produce substantially less radiation exposure than conventional dental x-rays. These digital images can be optimized, archived, printed and sent to other dentists via e-mail or disk.

Surgical Operating Microscopes

We utilize surgical operating microscopes for every procedure. Magnification and fiber optic illumination are helpful in aiding our endodontists to see tiny details inside your tooth and more predictably treat endodontic pathology. Also, a camera on the microscope can record images of your tooth to further document and report findings to your dentist.

Computed Tomography Scan (CT Scan) Imaging

This three-dimensional x-ray allows for enhanced visualization of the internal and external anatomy of the tooth and surrounding structures beneath the gum tissue. These images enable our endodontists to accurately diagnosis endodontic pathology, restorative processes and traumatic injuries.

Ultrasonics

Ultrasonic instrumentation is utilized for both surgical and non-surgical techniques. For surgery, ultrasonic instruments help minimize the size of the surgical field and assist in cleaning the end of the root. During non-surgical procedures, it is used to remove posts or files and provide acoustic streaming to more thoroughly clean the canals.

David Palmieri, D.M.D., M.S.

EDUCATION:

  • Bachelor of Science in Biology, University of Pittsburg, Pittsburg, PA
  • Doctor of Medicine in Dentistry, University of Pittsburg, Pittsburg, PA
  • Certificate of Endodontics, University of Pittsburg, Pittsburg, PA
  • Master of Science, University of Pittsburg, Pittsburg, PA

MEMBER, DENTISTRY:

  • American Dental Association
  • Virginia Dental Association
  • Northern Virginia Dental Society
  • Alexandria Dental Club (Past President)

MEMBER, ENDODONTICS:

  • American Association of Endodontists
  • Virginia Academy of Endodontics (Past President)
    Penick Endodontic Study Club
  • Seattle Study Club
  • Spear Study Club

HONORS:

  • Fellow of the Virginia Dental Association
  • Omicron Kappa Upsilon National Dental Honor Society
  • American Association of Endodontics Student Achievement Award
  • Pierre Fauchard Academy Fellow
  • Voted Top Endodontist by Northern Virginia Magazine
  • Voted Top Endodontist by Virginia Living Magazine
  • Voted Top Endodontist by Washingtonian Magazine
  • Voted Top Endodontist by Washington Consumer Checkbook Magazine

Nathan Schoenly, D.D.S.

EDUCATION:

  • Bachelor of Science, Saint Michael’s College, Burlington, VT
  • Bachelor of Arts, English Literature, Saint Michael’s College, Burlington, VT
  • Doctor of Dental Surgery, University of BuffalSchool of Dental Medicine, Buffalo, NY
  • Certificate of Endodontics, University of BuffalSchool of Dental Medicine, Buffalo, NY

MEMBER, DENTISTRY:

  • American Dental Association
  • Virginia Dental Association
  • Northern Virginia Dental Society
  • Korean American Dental Association
  • Alpha Omega Dental Fraternity

MEMBER, ENDODONTICS:

  • American Association of Endodontists
  • Virginia Academy of Endodontics
  • American Board of Endodontics
  • College of Diplomates of the American Board of Endodontics

HONORS:

  • Diplomate, American Board of Endodontics
  • Eagle Scout, Boy Scout of America

Frank Portell, D.M.D., M.S.

EDUCATION:

  • Doctor of Medical Dentistry, University of PuertRico, San Juan, PuertRico
  • Certificate of Endodontics, Walter Reed Army Medical Center, Washington, DC
  • Master of Science, George Washington University, Washington, DC

MEMBER, DENTISTRY:

  • American Dental Association
  • Virginia Dental Association
  • Northern Virginia Dental Society

MEMBER, ENDODONTICS

  • American Association of Endodontists
  • Virginia Academy of Endodontics (Past President)

HONORS:

  • Fellow of The American College of Dentistry
  • Fellow of The International College of Dentistry
  • Fellow of The Academy of General Dentistry
  • Pierre Fauchard Academy Fellow
  • Fellow of The Virginia Dental Association
  • Voted Top Endodontist by Northern Virginia Magazine
  • Voted Top Endodontist by Virginia Living Magazine
  • Voted Top Endodontist by Washingtonian Magazine

Nicholas Leon-Guerrero D.D.S

EDUCATION:

  • Bachelor of Science, University of the Pacific, Stocton, CA
  • Doctor of Dental Surgery, University of the Pacific Arthur A. Dugoni School of Dentistry, San Francisco, CA
  • General Practice Residency, Kings County Hospital Center, Brooklyn, NY
  • Certificate of Endodontics, Columbia University College of Dental Medicine, New York, NY

MEMBER, DENTISTRY:

  • American Dental Association
  • Virginia Dental Association
  • Northern Virginia Dental Society
  • Delta Sigma Delta Dental Fraternity

MEMBER, ENDODONTICS:

  • American Association of Endodontics

HONORS:

  • Board Eligible, American Board of Endodontics
  • Eagle Scout, Boy Scout of America
  • AAE Foundation Mission Outreach Participant
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