Request an Appointment / Refill Referrals This service
is for NON-URGENT appointments. For Medical
Emergencies please dial 9-1-1

With this form you are submitting a request for an appointment you are NOT scheduling the appointment. We will make our
best effort to schedule your appointment or contact you within one to two business days. You will receive an email confirming
your appointment when it is scheduled. Please make sure to select the clinic you wish to contact before submitting the form.


208 E. Starr St. Mercedes, TX

Phone & Fax

Phone: (956) 514-1643
Fax: (956) 514-2564

Request an Appointment

    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.

    Learn More