Dr. Michael Castillo, Dr. James Grant, Dr. Richard Johnigan and Physician Assistant Jennifer Reid are dedicated to providing you with the best possible medical care in the community where you live.

Our office is conveniently located across from Clear Lake Medical Center on the first floor of the building.



251 Medical Center Blvd
Suite 110
Webster, Texas 77598

(281) 338-1423



Click For Directions



For Asensa Drops Call:
713-609-1111


What Are Our Patients Saying About Us?

We were referred by our Pediatrician to see Dr. Johnigan. He did a small procedure in my son's ear. It was with no pain. He was very caring and very professional. He took all his time with my son. I would highly recommend him to everyone.
5.0
2018-06-26T03:28:29+00:00
We were referred by our Pediatrician to see Dr. Johnigan. He did a small procedure in my son's ear. It was with no pain. He was very caring and very professional. He took all his time with my son. I would highly recommend him to everyone.
Dr. Castillo knows is his stuff and is easy to talk with as well (which is a rare trait in most doctors). He was open and honest about my options which I respect. He also answered all my wife's questions as well. I am glad I chose him.
5.0
2018-06-26T03:03:21+00:00
Dr. Castillo knows is his stuff and is easy to talk with as well (which is a rare trait in most doctors). He was open and honest about my options which I respect. He also answered all my wife's questions as well. I am glad I chose him.
As always Dr Johnigan is the best! I’ve seen Dr Johnigan many times over the years first with my child and now for myself. He always educates his patients in a way anyone could understand and always takes his time with each patient. So thankful there’s such an excellent doctor in the suburbs!!!
5.0
2018-06-26T02:43:13+00:00
As always Dr Johnigan is the best! I’ve seen Dr Johnigan many times over the years first with my child and now for myself. He always educates his patients in a way anyone could understand and always takes his time with each patient. So thankful there’s such an excellent doctor in the suburbs!!!
We really cannot say enough about Dr. Johnigan’s professionalism, humor, expertise and kindness. He is straightforward and respectful. He is honest and patient. The best ENT around no doubt!
5.0
2018-06-26T03:06:06+00:00
We really cannot say enough about Dr. Johnigan’s professionalism, humor, expertise and kindness. He is straightforward and respectful. He is honest and patient. The best ENT around no doubt!
It was good to be treated with professionalism and care. When I say the doctor and all the other employees of the Texas ENT Specialist made me feel that I was in safe hands and even made me smile when I left, then you can believe they are the best.
5.0
2018-06-26T03:20:36+00:00
It was good to be treated with professionalism and care. When I say the doctor and all the other employees of the Texas ENT Specialist made me feel that I was in safe hands and even made me smile when I left, then you can believe they are the best.
Dr. Castillo is the best! My almost 3 year old son has seen Dr. Castillo since he was about 10 months. My son loves to see the doctor and his staff. Everyone is super friendly! -Cathryn
5.0
2018-06-26T02:40:14+00:00
Dr. Castillo is the best! My almost 3 year old son has seen Dr. Castillo since he was about 10 months. My son loves to see the doctor and his staff. Everyone is super friendly! -Cathryn
We have been really impressed with Dr. Castillo and his staff. They are caring, worked us in same day when my daughter was miserable with her throat and gave a great treatment plan until we could get her into surgery.
5.0
2018-11-10T20:17:06+00:00
We have been really impressed with Dr. Castillo and his staff. They are caring, worked us in same day when my daughter was miserable with her throat and gave a great treatment plan until we could get her into surgery.
This whole office is so sweet! It's always good to have front desk professionalism. Dr. Grant is very professional and very sincere in his listening, exam and explanations of what the course of action will be. He makes a point to let you know that if anything gets worse or worrisome, do not hesitate to call!
5.0
2018-11-10T21:41:03+00:00
This whole office is so sweet! It's always good to have front desk professionalism. Dr. Grant is very professional and very sincere in his listening, exam and explanations of what the course of action will be. He makes a point to let you know that if anything gets worse or worrisome, do not hesitate to call!
Extremely personal and I could tell (Dr Grant) had true empathy for the pain I was in and wanted to help me. He made me feel so much better about a clear path to healing and feeling better physically and mentally. It's obvious he really cares about his patients.
5.0
2018-06-26T02:58:50+00:00
Extremely personal and I could tell (Dr Grant) had true empathy for the pain I was in and wanted to help me. He made me feel so much better about a clear path to healing and feeling better physically and mentally. It's obvious he really cares about his patients.
(Dr Johnigan) has been an excellent provider for my toddler twins! They have improved well under his care and he was patient in answering all of our questions whenever we had them! He’s great! -Meisha
5.0
2018-06-26T02:42:35+00:00
(Dr Johnigan) has been an excellent provider for my toddler twins! They have improved well under his care and he was patient in answering all of our questions whenever we had them! He’s great! -Meisha
With this being my first visit to this facility and with Dr. Castillo, I was skeptical; Dr. Castillo listened attentively to my concerns and what was going on with me. He found the problem and offered a solution that was beneficial to me. -Felicia
5.0
2018-06-26T03:24:52+00:00
With this being my first visit to this facility and with Dr. Castillo, I was skeptical; Dr. Castillo listened attentively to my concerns and what was going on with me. He found the problem and offered a solution that was beneficial to me. -Felicia
Dr. Grant is simply the best Doctor in so many ways who performed complex sinus surgery on me in 2010. Throughout this arduous challenge and the years after, Dr. Grant has been there with me every step along the way. He is always patient, professionally concerned, available and displayed his superb medical competence in my long and complicated healing process. He has achieved significant positive results in treating my chronic Sinusitis and acute bronchial infections. He is a true professional and his entire staff to include PA Jennifer Reid are the most professional that I have encountered. They are"head and shoulders" above other medical practices.
5.0
2018-11-10T21:39:31+00:00
Dr. Grant is simply the best Doctor in so many ways who performed complex sinus surgery on me in 2010. Throughout this arduous challenge and the years after, Dr. Grant has been there with me every step along the way. He is always patient, professionally concerned, available and displayed his superb medical competence in my long and complicated healing process. He has achieved significant positive results in treating my chronic Sinusitis and acute bronchial infections. He is a true professional and his entire staff to include PA Jennifer Reid are the most professional that I have encountered. They are"head and shoulders" above other medical practices.
5
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