About Us

About Us

Our practice is made up of Physicians, Physicians Assistants (PA), Nurse Practitioners (NP), Medical Assistants (MA), and office staff who provide high-quality preventive care to our patients and treat their acute and chronic illnesses. We strive to provide the best possible care for your most precious treasures… your children.

About Us

Our practice is made up of Physicians, Physicians Assistants (PA), Nurse Practitioners (NP), Medical Assistants (MA), and office staff who provide high-quality preventive care to our patients and treat their acute and chronic illnesses. We strive to provide the best possible care for your most precious treasures… your children.

Mission

Our goal is to assist to attain optimal physical, mental, and social health and well-being for all infants, children, adolescents, and young adults. For this purpose, the Mercedes Children’s Clinic and its members dedicate their efforts and resources.

Children and Young Adults

Your medical team encourages and values communication, and recognizes the value of providing Access and Continuity of care. whether in the office, hospital or your home.

Guiding Principals
  • We treat all patients, families, and employees with dignity and respect.
  • We value teamwork and embrace the ever-present challenge of promoting health, disease prevention, improving function and quality of life.
  • We promote a healing environment at each of our facilities responding to the physical, emotional, social and spiritual needs of our patients.
  • We respect the regulatory environment in which we operate, and keep up to date with medical knowledge,academic excellence, mentoring new trainees as well as compliance and quality performance within our practice.

Meet our Specialists

Dr. Segundo Lizardo

Born in the Dominican Republic, a beautiful island located in the Caribbean, in La Vega, a town which is recognized internationally for the organization of the best carnival in the Caribbean.

Anna M. Espinoza, PA-C

Born and raised in the Rio Grande Valley. Her memorable teenage years were spent traveling up north as a migrant worker. After graduating from Donna High School, Anna spent several years working as a pharmacy technician in a local Donna pharmacy.

Sandra Rodriguez, PA-C

Born and raised in the Brownsville, TX. She graduated from Homer Hanna High school in 2007. She then graduated with honors from the University of Texas Pan American in 2011 where she received her Bachelor’s in Biology with minors in Chemistry and Psychology.

Leticia Serna, PA-C

Native to the Rio Grande Valley and was raised in Mercedes, Texas. She graduated from South Texas High School for Health Professions in 2000. In 2004 she received a Bachelor of Science from the University of Texas-Pan American.

Gabriela Almeida, PA-C

Born and raised in Sao Paulo, Brazil and moved to Miami, Florida with her family at the age of ten. She graduated from Florida International University in 2007 with a Bachelors of Science in Biology with Honors.

Gallery

Mercedes Children’s Medicine Affiliations

Testimonials

See what our satisfied patients are saying about their experience.

All Testimonials

Kaizen Clinical Partners

We are excited to announce that we are now part of a new organization called Kaizen Clinical Partners.

RGV Adult & Internal Medicine Specialists, PA has joined forces with Donna Medical Clinic, PA and Pedro J. Peñalo, MD, PA in order to serve our community in the Rio Grande Valley through a stronger work force, better resources for our patients, and shared values. Together, we will create a sustainable healthy society by improving well-being in our communities. We will become better every year at delivering equitable, excellent, and efficient primary and preventive care to all we serve.

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