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.
The reviews listed below were collected independently of ENT & Allergy of Delaware through rater8. Each review represents an authentic and verified patient experience.
Made me feel so much more at ease by explaining everything to me in full detail
(5 days ago)
Aug-2026
Mark is engaging and an amazing educator about my issue. He was not rushed and truly listened.
(1 week ago)
Aug-2026
He is always precise and quite knowledgeable. His recommendations are always considered by me.
(2 weeks ago)
Aug-2026
A have a lot of confidence in Mark. I have learned more than my neurologist ever told me.
(2 weeks ago)
Aug-2026
Friendly and professional.
(3 weeks ago)
Aug-2026
Thanks..
(3 weeks ago)
Aug-2026
Mark is a great listener and makes sure he figures out what will work for your situation. I would recommend him to anyone especially for migraines.
(1 month ago)
Jul-2026
As always, Mark was quick to diagnose my problem and treated me with utmost kindness. 🤗👏
(1 month ago)
Jul-2026
He’s excellent at explaining things to you. He took the time to go over my medication and re-prescribe a better medication for my health issue. One that would work better for me to help with migraine and will not interfere with my lungs our heart condition.
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.
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.
Thanks..
Mark is a great listener and makes sure he figures out what will work for your situation. I would recommend him to anyone especially for migraines.
As always, Mark was quick to diagnose my problem and treated me with utmost kindness. 🤗👏
He’s excellent at explaining things to you. He took the time to go over my medication and re-prescribe a better medication for my health issue. One that would work better for me to help with migraine and will not interfere with my lungs our heart condition.
Helped me a lot with ear issue