Meet Our Doctors

Nasim Levin, DMD

Lower Gwynedd, PA

Dr. Nasim Levin, DDS, DMD, was born and raised in Tehran, Iran, and earned her Doctor of Dental Surgery Degree (DDS) from the Tehran Azad Dental School. In 2020, Dr. Levin earned her Doctor of Dental Medicine Degree (DMD) from The University of Pennsylvania with an honors distinction in community oral health. Dr. Levin received the Drs. Samuel and Louis Rossman Endodontic Scholarship Award and PASS International Dentist Award. Dr. Levin was also inducted as a member of the Omicron Kappa Upsilon (OKU) Honor Society. The members of OKU, elected from top 20 percent of the class. After receiving her DMD, Dr. Levin went on to graduate from the University of Pennsylvania School of Dental Medicine’s Endodontics Program, where she completed advanced training in microsurgery. During this time, Dr. Levin provided instruction on advanced microsurgery techniques to Endodontists from around the world.


Dr. Levin also earned recognition for her poster presentation related to endodontic microsurgery at the 2022 American Association of Endodontists (AAE) Annual Meeting. Dr. Levin is a part-time faculty member at the Graduate Endodontic Department of The University of Pennsylvania. Dr. Levin is an active professional member of the American Association of Endodontics (AAE) and the American Dental Association (ADA).

On her free time Dr. Levin enjoys hiking, reading, cooking, and spending time with her family.

Ada Greenfield, DMD

Lower Gwynedd, PA

Dr. Greenfield has been a practicing Endodontist since 1991. She was originally trained in Lima, Peru, and earned her DDS degree at the Federico Villarreal School of Dentistry. She was also Member of the Board at the Peruvian Association of Endodontists. From 1991-1999 she continued her association as a Faculty Member in Endodontics while establishing an endodontic practice in Lima.


She was encouraged by Dr. Samuel Seltzer, one of the founding fathers of endodontics, to receive further training in the USA. She completed a DMD in 2003 and a Specialty in Endodontics in 2007 at Temple University School of Dentistry in Philadelphia. She is a superb clinician, achieving a perfect score on the clinical portion of her general dental licensing exam(NERB). While enrolled in both programs, Dr. Greenfield was a Clinical Instructor of Endodontics at Temple University School of Dentistry from 2000-2008.


Dr. Greenfield is an Active Member of the AAE (American Association of Endodontists), the ADA (American Dental Association) and the PDA (Pennsylvania Dental Association) and Member of the Board of the Montgomery Bucks Dental Society and The Dental Clinic Club of Philadelphia. She upgrades her skills through Continuing Education Courses at the AAE, University of Pennsylvania and other well renowned Institutions.

She is married to Dr. Leonard Greenfield and has a daughter, Hannah.