Our Team

Learn more about our GCST Providers

Adult Care

Meet our experienced GCST Team

Nolan E. Perez, MD, FACP, FACG

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Nicole M. Grigg-Gutiérrez, MD

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Sandeep T. Samuel, MD

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Jason R. Phillips, MD, FASGE

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Allan G. Coates, DO, FACOI

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Henry R. Herrera, MD

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Maribel M. De Ponce, PA-C, MPAS

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Stephany Sosa, NP-C, CCRN

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Michelle Lopez, FNP-BC, APRN

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Miriam De Leon, PA-C, MPAS

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Pediatric Care

Meet Our Experienced GCST Pediatric Team

Mihaela Ringheanu, MD

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Carmen Romero PNP-C

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GCST is here to assist you.

Frequently Asked Questions

Frequently Asked Questions

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Areas of Specialty

Areas of Specialty

Having symptoms?

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Our Locations

Our Locations

Here to help you

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Book an Appointment

Book an Appointment

(956)365-4400

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GCST is committed to protecting our patients & staff during COVID-19