Skip to content
(281) 315-8130
Patient Information

Our Providers

Physician Assistants

What is a Physician Assistant (PA)?

A Physician Assistant (PA) is a highly trained medical professional who works closely with Physicians to provide high-quality care to patients. PAs are educated in a medical model designed to complement Physician training. They are licensed to diagnose and treat illnesses, develop and manage treatment plans, prescribe medications, perform joint injections, and often serve as a patient's principal healthcare provider.

Adding value to your care

PAs like Anay and Elizabeth do not take the place of your treating Rheumatologist. Instead, they work alongside your Physician to enhance and extend the care you receive, helping ensure timely, comprehensive care with more personalized attention and continuity.

Why am I scheduled with a PA?
Portrait of Anay Vallejo

Anay Vallejo, PA

Anay Vallejo, PA, is a dedicated and compassionate Physician Assistant who joined our Rheumatology team in 2020. She is committed to providing patient-centered care alongside Dr. Perez-Masuelli and Dr. Wilson in Rheumatology.

Anay enjoys treating a variety of conditions and takes pride in establishing trusting relationships with her patients. Before joining, Anay gained a wide array of experience in Cardiology and Pediatrics, which has enriched her approach to patient care. As a Houston native, she is fluent in both English and Spanish, allowing her to communicate effectively with a diverse patient population.

Professional education

  • BS Neurobiology — University of Texas at Austin
  • Master of Physician Assistant Studies — University of Texas Medical Branch

Professional memberships

  • NCCPA certification
  • American Academy of Physician Assistants
  • American College of Rheumatology

Clinical interests: Rheumatology

Portrait of Elizabeth Stapper

Elizabeth Stapper, PA

Elizabeth Stapper, PA, is a dedicated and skilled physician assistant who joined Dr. Perez-Masuelli's practice in 2022. With a strong passion for Rheumatology, Elizabeth enjoys treating a variety of conditions and is committed to building long-term relationships with her patients.

Elizabeth completed her physician assistant training at Mississippi College, where she developed comprehensive medical knowledge and a compassionate approach to patient care. Outside of work, she enjoys reading, traveling, playing tennis, and spending time with friends and family.

Professional education

  • BA Biology and Health Sciences with Distinction — Hendrix College
  • Master of Physician Assistant Studies — Mississippi College

Professional memberships

  • NCCPA certification
  • American Academy of Physician Assistants
  • American College of Rheumatology

Clinical interests: Rheumatology

Contact our office

Questions or ready to schedule?

Call our office and our staff will help you. Please don't send health information through email or web forms.

Call (281) 315-8130Contact page