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.
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.
(5 days ago)
Jul-2026
As always, Mark was quick to diagnose my problem and treated me with utmost kindness. 🤗👏
(1 week 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.
(3 weeks ago)
Jun-2026
Helped me a lot with ear issue
(1 month ago)
Jun-2026
Very professional and easy to talk to and very thorough
(1 month ago)
Jun-2026
Mark is a thorough provider with open and clear communication. He and his team are responsive, kind, and professional in all interaction. He has helped me immensely and I highly recommend him if you need migraine assessment and management. Thank you Mark!
(1 month ago)
Jun-2026
Dr Mark is amazing! Friendly, detailed and provides realistic suggestions to improve the quality of my life
(1 month ago)
Jun-2026
Very good doctor
(1 month ago)
Jun-2026
He's patient, experienced and positive.
(1 month ago)
Jun-2026
All ways cordial and answers any questions I may have.
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 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
Very professional and easy to talk to and very thorough
Mark is a thorough provider with open and clear communication. He and his team are responsive, kind, and professional in all interaction. He has helped me immensely and I highly recommend him if you need migraine assessment and management. Thank you Mark!
Dr Mark is amazing! Friendly, detailed and provides realistic suggestions to improve the quality of my life
Very good doctor
He's patient, experienced and positive.
All ways cordial and answers any questions I may have.