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 exceptional when it comes to migraine treatment. I have been treated with Botox for over 20 years and his application is the most effective of all my doctors. I highly recommend him!
(3 days ago)
Jun-2026
Mark is always very kind and efficient
(1 week ago)
May-2026
Took time to explain things in a very clear concise manner.
(2 weeks ago)
May-2026
Mark was fantastic! He explained everything that I needed to know about migraines and different treatments available.
(2 weeks ago)
May-2026
Mark is attentive, thorough and determines the best treatment for his patients. I highly recommend him.
(2 weeks ago)
May-2026
Mark is personable and handles my husband, who has Alzheimer’s, well.
I appreciate that we seldom wait long to be called to the treatment room and we don’t wait long to see Mark.
(2 weeks ago)
May-2026
Mark is very patient and helps a lot.
(3 weeks ago)
May-2026
Very professional and honest. Answer all questions you may have. Will not go to any one else.
(3 weeks ago)
May-2026
Mark is an excellent and proficient professional, personable and a great guy to chat with as he does his thing.
(1 month ago)
May-2026
I’ve gotten perfect advise and medication from Mr Landis.
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 exceptional when it comes to migraine treatment. I have been treated with Botox for over 20 years and his application is the most effective of all my doctors. I highly recommend him!
Mark is always very kind and efficient
Took time to explain things in a very clear concise manner.
Mark was fantastic! He explained everything that I needed to know about migraines and different treatments available.
Mark is attentive, thorough and determines the best treatment for his patients. I highly recommend him.
Mark is personable and handles my husband, who has Alzheimer’s, well. I appreciate that we seldom wait long to be called to the treatment room and we don’t wait long to see Mark.
Mark is very patient and helps a lot.
Very professional and honest. Answer all questions you may have. Will not go to any one else.
Mark is an excellent and proficient professional, personable and a great guy to chat with as he does his thing.
I’ve gotten perfect advise and medication from Mr Landis.