McAllen & Rio Grande Valley, TX

Book Your Appointment
with RENEW

Your path to feeling better starts with one conversation. Select your service below, pick a time that works for you, and let's get started.

No Referral Needed Personalized Care Plans Sasha Castillo, MSN, FNP-BC ANCC Certified · Functional Medicine

How It Works — 4 Simple Steps

01

Choose a Package

Browse services and select the one that fits your needs.

02

View Package Details

Read what's included to find your perfect fit.

03

Pick a Date & Time

Select an appointment time that works for your schedule.

04

Enter Your Info

Fill in your details — and you're confirmed.

Select Your Service & Time Below

RENEW Health & Wellness — Appointment Booking

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Questions? Call us at (956) 867-2365 · Mon–Fri, 9AM–5PM

500 S. 11th St., Suite 1 · McAllen, TX 78501

Not sure which service is right for you? Give us a call and Sasha's team will help you choose.

What to Expect

Your First Visit at RENEW

We want you to feel calm and confident walking through our door. Here's exactly what happens when you arrive.

We Actually Listen

Your first visit is a thorough intake — your full health history, your symptoms, your goals. No rushing. No dismissing. We want the complete picture.

Targeted Lab Work

We order the right labs — looking at optimal ranges, not just whether a number is "normal." Many patients leave their first visit with a lab order and a follow-up scheduled.

Your Plan Begins

Based on your results, Sasha builds a protocol designed entirely around you — specific supplements, infusions, or treatments matched to your body, not a template.

Contact Us Directly

Prefer to Call or Have
a Quick Question?

Phone

(956) 867-2365

Office Hours

Mon – Fri  ·  9:00 AM – 5:00 PM

Closed weekends

Location

500 S. 11th St., Suite 1

McAllen, Texas 78501 · Get Directions →

"For I know the plans I have for you… plans to give you hope and a future."

— Jeremiah 29:11

At RENEW, every appointment is an opportunity — to listen, to dig deeper, and to help you feel like yourself again. Sasha sees each patient as a whole person, not a chart.

★★★★★

"All my symptoms are gone. After more than three years of suffering, Sasha found what two specialists missed — in a single visit."

EM

Emma M.

RENEW Patient · McAllen, TX

Not Your Typical Wellness Center

Ready to Start Feeling
Like Yourself Again?

Your appointment is just a few clicks away. No referral needed. No long waits. Just real answers and a plan built entirely around you.