Mark Landis MSN, RN, FNP
Practice: ENT & Allergy of Delaware
Specialty: Ear, Nose, and Throat, Nursing
Office locations: Newark, Middletown
Mark Landis, MSN, RN, FNP has been a practicing Registered Nurse since 1997. He achieved his Masters of Science in Nursing and became a Board Certified Family Nurse Practitioner in 2005. He has extensive experience in Cardiology and has trained under Dr. Teixido to become a Migraine Specialist, and with our other physicians to become a support provider for general ears, nose, and throat disorders.
Mark Landis, MSN, RN, FNP has been a practicing Registered Nurse since 1997. He achieved his Masters of Science in Nursing and became a Board Certified Family Nurse Practitioner in 2005. He has extensive experience in Cardiology and has trained under Dr. Teixido to become a Migraine Specialist, and with our other physicians to become a support provider for general ears, nose, and throat disorders.
ENT & Allergy of Delaware: Foulkstone Plaza
Suite 205
Wilmington, DE 19803
ENT & Allergy of Delaware: Middletown Crossing
Middletown, DE 19709
ENT & Allergy of Delaware: Newark - Iron Hill Corporate Center
Suite 200
Newark, DE 19713
ENT & Allergy of Delaware: Telehealth
Mark Landis, MSN, RN, FNP has been a practicing Registered Nurse since 1997. He achieved his Masters of Science in Nursing and became a Board Certified Family Nurse Practitioner in 2005. He has extensive experience in Cardiology and has trained under Dr. Teixido to become a Migraine Specialist, and with our other physicians to become a support provider for general ears, nose, and throat disorders. He graduated with a Bachelor’s of Science in Nursing from Widener University in 1997 and went on to practice as a Registered Nurse in several clinical settings at Christiana Care Health Systems and eventually with Delaware Cardiovascular Associates. He has privileges at Christiana Care Health Systems and is a preceptor to Nurse Practitioner and Physician Assistant students. He is also a member of the American Headache Society and annually attends migraine conferences to best support his patients.

Mark Landis is incredibly personable, kind, and genuinely caring. From the moment he walks into the room, it is clear that he prioritizes his patients. He listens patiently to every single concern without ever making you feel rushed and combines expert knowledge with a wonderful bedside manner.
Mark is fantastic! I will always use him for my treatments!
He takes the time to answer my questions.
I appreciate that he treated what I was there for and didn’t try to do anything extra such as allergy testing etc.
Very thankful for Mark’s expertise and the ability to telemed.
Made me feel so much more at ease by explaining everything to me in full detail
Mark is engaging and an amazing educator about my issue. He was not rushed and truly listened.
He is always precise and quite knowledgeable. His recommendations are always considered by me.
A have a lot of confidence in Mark. I have learned more than my neurologist ever told me.
Friendly and professional.