Family Medicine
check Accepting new patients
location_on Locations
school Education
Medical School
- Pennsylvania State University College of Medicine, 1995
Residency
- Christiana Care, 1996 - 1998
Board Certifications
- Family Medicine
star Reviews
The Patient Satisfaction Rating is an average of all responses to the care provider related questions from our nationally recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
Responses are measured on a scale of 1 to 5 with 5 being the best score.
The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of St. Luke's University Health Network.
“Great care and professionalism”
July 30, 2025
“GREAT!!”
July 28, 2025
“GREAT!!”
July 28, 2025
“I've been a patient for many years”
July 12, 2025
“Have my family going here also”
July 12, 2025
“He is thorough and accurate.”
July 7, 2025
“Staff is always helpful and courteous and willing to answer whatever questions I may have”
July 3, 2025
“All staff has been very knowledgable, pleasant and courteous. Dr. Casida is a great listener and very patient and understanding. His explanations and instructions are clear and precise. I have only good to say about this office/practice.”
July 1, 2025
“I am always treated well when I see Dr. Casaia. That Includes everyone in the office. He always takes the time to listen to me.”
June 27, 2025
“Always a pleasure seeing g Dr. Casaia”
June 26, 2025
“Dr. Casaia is always so friendly and helpful. Also, the Medical Receptionist (Name) is also friendly and helpful.”
June 23, 2025
“Always good,..”
June 22, 2025
“As always a good experience seeing Dr. Casaia.”
June 22, 2025
“Everything was fine with Mark A Casaia, MD”
June 20, 2025
“Always love seeing Dr Casaia and his medical team.”
June 15, 2025
“This office staff and doctors are great”
June 11, 2025
“First time visit for me and the overall experience was perfect! Dr. Casaia spent a significant amount of time getting to know more about me. He and his staff were super friendly and personable.”
June 7, 2025
“Dr Mark Casaia is an asset to not only St Luke's, but the Greater Lehigh Valley. I have the privilege to have Dr Casaia as my primary care physician. The ultimate professional, Dr Casaia is an outstanding physician and a credit to his profession.”
May 19, 2025
“Excellent practice”
May 8, 2025
“Friendly place efficient and professional”
May 7, 2025
“After I explained why I was thinking, the doctor gave me a script for blood work.”
April 28, 2025
“Always have a good experience with this provider.”
April 26, 2025
“Dr. Casaia is a very thorough, caring Doctor. I really like the girls in his office too!!!”
April 18, 2025
“He was very thorough. A good listener. Kind. Knowledgeable. He provided all the referrals I needed. Likeable”
April 8, 2025
“Doctor and staff are always friendly and easy to talk with.”
April 7, 2025
“He is not my regular doctor, but I have seen him before, and he is very good and caring, trying to do his best to help you. I think he's great.”
April 7, 2025
“I truly trust depend and like my health care provider very much he is a wonderful Doctor!!!”
April 2, 2025
“Always a good visit”
April 1, 2025
“Checkup was fast and efficient. Answered all my questions. And initial nurse gave me the locations of my nearest St Lukes CareNow centers which was needed”
March 31, 2025
“Dr. Casaia, the nurse and office, Kirsten are fantastic!!”
March 31, 2025
“My appointments are always good and to the point. I always get great service every time I come to the office.”
March 30, 2025
“All good experiences”
March 30, 2025
“All my experiences have been positive never had a bad experience.”
March 18, 2025
“Always wonderful, thorough, and friendly from start to finish.”
March 8, 2025
“It was good”
March 5, 2025
“Always a pleasant visit with Dr. Casaia. Recommenced by my brother as my doctor retired. Very nice doctor”
February 23, 2025
“They make me feel like a member of their family”
February 17, 2025
“Everyone was great!”
February 6, 2025
“Everything was good with Mark Casaia, MD”
January 30, 2025
“Dr. Casaia Is always helpful and listens and recommends treatment”
January 26, 2025
“I feel I can be confident that when I have a problem it will be addressed and something will be done to best of their ability to make me feel better.”
January 18, 2025
“Doctor Mark A Casaia, MD and Nurses and staff are always great.”
January 13, 2025
“I received outstanding care each and every time I have seen Doctor Casila”
January 13, 2025
“Excellent care as always from Mark A Casaia, MD”
January 9, 2025
“A great overall experience with Mark A Casaia, MD”
January 4, 2025
“Seeing this doctor Mark A Casaia, MD for over 25 yrs and is excellent.”
January 2, 2025
“I trust this DR. 100 plus %. He and his staff are so caring and loving. You are treated like family. I really feel at home there. There was a couple of times, he called me at home to check up on me.”
December 27, 2024
“Completely satisfied with visit to Mark A Casaia, MD”
December 24, 2024
“As always, Everything went well with Mark A Casaia, MD. Thank you !”
December 20, 2024
“As always, it was a good experience seeing Dr. Casia”
December 19, 2024
“I was there for my annual check up. The doctor Mark A Casaia, MD doctor is friendly and listened to all my concerns”
December 16, 2024
“Dr Cassie's is excellent. I have been going to him for years and I never want to change doctors”
December 16, 2024
“As always my visit was done in a very professional matter with Mark A Casaia, MD”
December 12, 2024
“This visit was an excellent experience with Mark A Casaia, MD”
December 11, 2024
“I love Dr. Casaia and his staff. He's the best and K at the check out desk is always helpful and a pleasure to talk to. The nurse that took my vitals and went over stuff before Dr. C came in is always amazing too.”
December 7, 2024
“Office staff is very professional and helpful. Doctor Casaia always listens to my concerns and answers my questions without me feeling rushed.”
November 25, 2024
“I am very happy this group! Dr. Casaia is wonderful and very knowledgeable. The ladies are so friendly and respectful. Nurse is wonderful and so is K”
November 20, 2024
“This provider Mark A Casaia, MD really connected with me during my visit. I honestly appreciate the openness. I don't get that with every provider, so it makes me happy. In the future, I will get my blood work paperwork at the same time I make my appointment so my provider can go through the blood work during my appointment. This way I can connect all the dots during the visit. My provider worked with me to accomplish that goal during this visit and I'd like to do it again. He's very knowledgeable and knows when to refer me to a specialist. He's also very conscientious and an all around great attending physician.”
November 18, 2024
“Love the physician Mark A Casaia, MD and the practice”
November 1, 2024
“We enjoy our visits to our provider and the office staff is always helpful.”
November 1, 2024
“Excellent care provided by Dr Casaia and the entire team supporting him.”
October 31, 2024
“Dr Casaia and his entire staff are professional yet friendly and easy to deal with”
October 28, 2024
“People in the community highly recommended Dr. Casaia and his office and, I was not disappointed.”
October 25, 2024
“Great doc.”
October 25, 2024
“Excellent meeting with Dr. Casaia and exceptional dialog with (Name) at checkout.”
October 24, 2024
“I always receive excellent care from Dr, Casaia,.”
October 23, 2024
“In addition to his expert medical knowledge, Dr. Casaia is one of the most sincere, personal and caring professionals my wife and I have ever experienced. We have been with Dr. Casaia and the team at his location since he joined (Name)”
October 14, 2024
“Dr. Casaia and the staff are excellent! I always feel welcomed, am well-treated and they make my visit as pleasant as possible!”
September 30, 2024
“I needed to get in asap for an appointment with Mark A Casaia, MD and they got me one last minute so was very grateful.”
September 29, 2024
“I always feel respected and important at this facility of Mark A Casaia, MD”
September 29, 2024
“As always, my experiences (from checking in, being taken back, having vitals measured, being seen by nurse and doctor, having information relayed to me, and receiving flu vaccine) in this office continue to be top notch. Everyone is friendly, kind, helpful, and supportive at Mark A Casaia, MD office”
September 28, 2024
“Mark A Casaia, MD was helpful and efficient at the time and followed up afterwards”
September 20, 2024
“Always have a great experience @ this office of Mark A Casaia, MD. Great staff & providers!!”
September 20, 2024
5.0 RATING
“Dr. Casaia and his staff are the best.”
July 31, 2025