About Our Office



Dr. Paul Mosad

Dr. Paul Mosad

We would like to introduce our newest member, Dr. Paul Mosad. Dr. Mosad is originally from Egypt where he lived most of his life. Dr. Mosad was able to get in dental school right after finishing his high school diploma in Egypt due to his good grades. He only attended his first year there and immigrated with his family to the United States when he was just 19 years old. Dr. Mosad is fluent in both English and Arabic.

After coming to the States, Dr. Mosad had to start everything from scratch, but was able to finish his undergraduate degree at the University of South Florida where he obtained a Bachelor of Science degree in biomedical sciences in 2015. After that, he moved alone to Cleveland, Ohio where he attended dental school at Case Western Reserve University School of Dental Medicine and graduated in May of 2019. Dr. Mosad dissected cadavers for his class and for the newer classes as well. He also tutored multiple clinical classes such as prosthodontics, endodontics, and operative class. He also finished a one year General Practice Residency in Dentistry from St. Vincent Charity Hospital in Cleveland, Ohio. In his residency, Dr. Mosad performed very complex treatments such as full mouth extractions, full mouth alveoplasty with tori removal, fully impacted 3rd molar teeth (wisdom teeth), surgical placement of implants, molar root canal treatment, crowns, fillings, dentures including immediate dentures, and partial dentures. Dr. Mosad is also Nitrous sedation and Invisalign orthodontics certified.

Dr. Mosad likes to help people and that is why he joined dentistry. He simply does not like to see people suffer, and likes to help them restore their beautiful smile.

Dr. Mosad enjoys going to different new places with his family and friends. He enjoys cooking, working out, soccer, traveling and going to church. He is a member of the Coptic Orthodox Christian Church.

Dr. David Castellano

Dr Castellano

Dr. David L. Castellano is a Tampa native who grew up in Town N’ Country. His father, Domenic M. Castellano, DDS, inspired him to pursue a dental degree following his graduation from Leto High School in 1992. Dr. Castellano attained his undergraduate degree from the University of South Florida in 1996 before moving on to the University of Florida, College of Dentistry where he graduated in the year 2000. Dr. Castellano returned home to the Tampa area and has provided quality dental care ever since with the last 13 years in Town N’ Country. Now, Dr. Castellano is excited to continue his career in the Trinity community and surrounding areas.




The Proof is in Our Patients


Chele M.

Walked in full anxiety! Left loving the experience.. Best ever. David, Emily & Katherine make you comfortable. Not a single tear. Definitely looking forward to my next visit!

Chele M.

Celysse M.

Staff was extremely welcoming and Dr. Castellano took his time to explain everything from my X-rays to my plaque build up. Most thorough dental visit I’ve had for some time!

Celysse M.

Lauren P.

I was immediately impressed once I arrived at the office. It was very clean, the staff was friendly and informative – I knew I was in good hands. I met Dr Castellano and he (with the staff) explained my options and took great care of me. I’m thankful for the mailer and to have found such a great practice!

Lauren P.

Kate B.

First time seeing Dr. Castellano…everything was professional, friendly and pain free. Catherine and Emily were great. Infact, my husband is going next week to see Dr. C for the first time. We found our family dentist and right here in Trinity.

Kate B.

Margie M.

After recently relocating back to the area, my family needed to select a new dentist accepting Humana. Found this place, and over the past few months, all three of us have seen both Dentist’s and all had greats results. Very happy to recommend! Their evening appointments are awesome, too.

Margie M.

Robert C.

Had a great experience at Trinity Premier Dental. Staff was courteous and professional and Doctor Castellano was the best. He took his time, was friendly, courteous, thorough and knowledgeable.

Robert C.

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