Our staff

You have a choice of doctors, and you make that choice based on a number of factors. Above all, you want a doctor who is experienced, understanding, available, and attentive to your medical needs. And that doctor needs to be supported by a responsive and caring staff that will keep you informed about all aspects of your care.

That’s why personalized, quality care in a supportive environment is our goal, and my staff and I work as a team everyday to reach that goal.

Candice Sebastian
Your first point of contact in our office will be Candice Sebastian, our office manager. She has worked for Dr. Nass for many years and has more than 15 years experience in the health-care industry. Like Dr. Nass she believes that you don’t just treat the illness you treat the patient. In addition to her expertise in medical-office administration, Ms. Sebastian is clinically trained and experienced as a surgical coordinator. Pic attached. Size and wrap text.

Vanessa Seidell
Vanessa Seidell, our Physicians Assistant (PA) obtained her Master’s degree in Physician Assistant Studies from Le Moyne College and holds a Bachelor of Science degree in Medical Technology from the University of Connecticut. She holds certifications from the New York State Society of Physician Assistants, the American Academy of Physician Assistants, and from the American Academy of Physician Assistants in allergy, asthma, and immunology.

Prior to working with Dr. Nass Ms Seidell worked in internal medicine and ambulatory surgery, and in the field of allergy and asthma since 2015.  She’s available for routine asthma and allergy care, urgent visits, and patient education. She can help you and your family understand you’re your allergy and asthma diagnosis and assist in setting treatment goals to make living with these conditions as manageable as possible.


Dr. Richard Nass

ENT & Sinus Specialist in Manhattan, NY

Richard Nass, MD

Richard Nass MD FACS

 I’m Dr. Richard Nass, a specialist in the diagnosis and treatment of sinus disease, acute and chronic sinus infections, nasal abnormalities, sleep apnea, nasal breathing problems, poor sleep quality, snoring, facial pain, and all problems of the ears, nose, and throat. I am also a sinus and nasal surgeon, so I can offer any medical or surgical treatment options for your specific situation.

One of my related areas of expertise is inhalant (respiratory) allergies, as they often coexist in a variety of sinus, ear, nose, and throat problems. In my medical practice, I combine the diagnosis and management of inhalant allergies where appropriate.

My professional approach is simple:  I combine individualized patient care with the latest technology to treat your health problems.

If you suffer from any type of sinus, breathing, nose, ear, or throat problems, my state-of-the-art ENT practice can help.

As Clinical Associate Professor of Otolaryngology – Head and Neck Surgery, I teach ENT residents at the New York University School of Medicine. I was among the first U.S. doctors to pursue endoscopic sinus diagnosis, treatment, and surgery and studied with its innovators at the Johns Hopkins Hospital in Baltimore and the Faculty of Medicine at the University of Graz, Austria. I have co-directed continuing education courses in the principles and techniques of endoscopic sinus surgery, and organized and co-directed international symposia on sinus disease, and written articles for medical journals.

In addition to my position as Clinical Associate Professor of Otolaryngology – Head and Neck Surgery at the NYU School of Medicine, I’m an attending physician at the NYU Langone Medical Center, Lenox Hill Hospital/Manhattan Eye and Ear Hospital, Bellevue Hospital Center, the Manhattan VA Hospital, and an Honorary Surgeon of the New York City Police Department.

I am a graduate of the NYU School of Medicine and I completed both an internship in general surgery and a residency in otolaryngology at the Bellevue Hospital Center - NYU School of Medicine.

Stephanie Moore-Saldiran

Stephanie Moore-Saldiran

Our office manager, Stephanie Moore-Saldiran is New York State certified in three areas – Clinical Medical Assistant, Phlebotomy Technician, and EKG Technician. She has a broad background as a medical assistant, in health-care office and records management, and medical scheduling.

Prior to working with Dr. Nass, she worked at a number of other medical practices in the New York area.

Dr. Rhea Varadi

Dr. Rhea Varadi

Dr. Rhea Varadi earned her Master of Science in Audiology from Columbia University Teachers College and Doctor of Audiology degree from Salus University. She is licensed in Audiology by the New York State Department of Education. She is also a New York State licensed hearing-aid dispenser.

Prior to working with Dr. Nass, Dr. Varadi was employed by the Department of Veterans Affairs Medical Center in Manhattan, Mount Sinai Faculty Practice ENT, and a private neurotology practice.  She taught Master’s and Doctoral level students at Hunter College and the CUNY Graduate Center as an adjunct lecturer.