City Endo Specialists

Marcus Johnson DDS,MSD

Dr. Johnson, a Denver, CO native headed East to pursue his lifelong dream of becoming a dentist. A Rutgers University alum and graduate of New York University Dental School, he advanced his knowledge and training receiving his Certificate of Endodontics from Case Western Reserve University in Cleveland, Ohio while earning his Masters Degree of Science in Dentistry. Dr. Johnson an intellectual and progressive-minded clinician, won an award in 2011 from the American Association of Endodontists for his research on new treatment techniques within endodontics.

Dr. Johnson is on staff at Interfaith Medical Hospital in Brooklyn, New York. His responsibilities as the Endodontic attending include lecturing, teaching dental residents and management of dental trauma emergencies. Dr. Johnson stays abreast of new and current treatment technologies and endodontic modalities. He is a key opinion leader and official speaker for Coltene, a dental equipment manufacturing company. He lectures nationally and internationally on current trends within endodontics, endodontic products, and provides continuing education courses for dental professionals.

Dr. Johnson is an active member of numerous organizations including: American Association of Endodontists, American Dental Association, National Dental Association as well as the New York State Dental Association. Dr. Johnson's motto "Lift as you climb" illustrates his commitment to patient care and community involvement. Dr. Johnson served as a volunteer treating communities abroad on outreach programs to Jamaica with his alma mater NYU, providing free care to those most in need. In addition Dr. Johnson founded Operation Dental Success a program in which he lectures to local students highlighting dentistry as a career while promoting proper oral hygiene.

Dr. Johnson, an astute clinician and visible community activist, dedicates himself to optimum patient care, with the goal of treating every patient

"Like family!"

Howard Stieglitz DDS

Dr. Stieglitz, an intellectual, progressive-minded clinician and a native New Yorker graduated Cum Laude at City College of New York, then pursued his career in dentistry after attending New York University College of Dentistry Postgraduate Program in Endodontics.

Dr. Stieglitz was also a director and instructor in Endodontics at Beth Israel Medical Center, Mount Sinai Hospital and was a clinical assistant professor at NYU College of dentistry.

Dr. Stieglitz is affiliated with professional dentistry organizations such as: American Dental Association, American Association of Endodontics, First District Dental Society, Omicron Kappa Upsilon and the American Heart Association: Instructor of Basic Cardiac Life Support.

When Dr. Stieglitz is not practing, he enjoys his free time traveling with family.

Dawn Weldon DDS

Dr. Dawn Weldon serves as the on-call emergency Endodontist for City Endodontics in addition to Dr. Johnson. Dr. Weldon also treats patients on select Fridays and Saturdays in our Manhattan practice. Originally from North Carolina, Dr. Weldon graduated from UNC Chapel Hill with a BA degree in Psychology and a minor in Chemistry and continued her education receiving her Master of Science degree in Human Nutrition. Dr. Weldon was always passionate about healthcare and was fortunate to pursue her academic endeavors and interest at NYU College of Dentistry, earning a degree in dental surgery (DDS).

She explored many different specialties and although excelled in esthetics; she realized that she wanted to pursue the area in which she was most felt, she was making a timely impact, Endodontics. Following NYUCD, she completed a general practice residency in dentistry at the VA Hospital in Manhattan, and completed her specialty residency in Endodontics at the VA Hospital where she was the favorite dentist of many veterans due to her relatable and kind nature balanced with her precision in delivering high quality care to those in pain.

Since her residency, Dr. Weldon has been involved in hospital, corporate, and private dentistry. She believes in making patients feel as comfortable as possible while providing them with the best care and quality service.

 Michael Y. Chen  DMD

Dr. Michael Chen grew up in Boston, MA, and Huntsville, AL, before graduating from Duke University. Dr. Chen graduated from Harvard School of Dental Medicine and completed the Columbia University Graduate Endodontics Program. As a resident, Dr. Chen presented his research at the American Association of Endodontists annual meetings each year. Dr. Chen has a passion for excellence in Endodontics and delivering high quality care to patients.


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30 E. 40th Street, Suite 1004 | New York, NY 10016


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