Castello Wellness & Primary Care
Verified listingAbout Castello Wellness & Primary Care
What is Castello Wellness & Primary Care?
Castello Wellness & Primary Care is a physician-led family practice. Most of its work is primary care: preventive care and annual physicals, men's and women's health, chronic disease management for hypertension, diabetes and hyperlipidemia, and knee pain evaluation and treatment. It also offers medically managed weight loss with semaglutide and tirzepatide, plus hormone therapy.
Dr. Gregory Castello, DO, a board-certified family physician, founded the practice and prescribes. Erin Valentino works with him to provide care. Visits are offered in person and by telehealth, for all ages. The practice offers bioidentical hormone replacement therapy, and testosterone replacement as in-office pellets, in-office injections, or prescription gels, creams and nasal sprays taken at home. In its own words: "Treatment plans are individualized and adjusted gradually."
What does it cost?
It does not publish prices for any of its services. It does not say whether medication is included in any price, and it does not say whether it accepts insurance. Its weight loss material mentions a consultation, lab work and follow-up visits, but gives no fee for any of them. It does not describe membership terms or cancellation. Ask for every charge in writing before you book: the consultation, the medication, lab work and each follow-up visit.
What should you ask before you book?
Ask who signs your prescription, and whether Dr. Castello or Erin Valentino would manage your care. For weight loss, ask whether any monthly cost includes the medication, and whether the medication is brand-name or compounded. The material names semaglutide and tirzepatide alongside Ozempic, Wegovy, Mounjaro and Zepbound, so ask which product you would actually receive. For hormone therapy, ask how often labs and follow-up visits happen and what they cost. Ask whether the practice bills insurance, whether telehealth is available where you live, and how you cancel or stop treatment and whether a fee applies.
Who is it a good fit for?
This is a good fit if you want a physician-led family practice that also offers GLP-1 weight loss, hormone therapy or testosterone replacement, and you are ready to get prices, insurance terms and cancellation terms in writing before you book.
Sources: castellowellness.com, castellowellness.com/medically-managed-weight-loss, castellowellness.com/bioidentical-hormone-replacement, castellowellness.com/providers
Services Offered
What we confirmed
Read off Castello Wellness & Primary Care’s own website on 2026-10-24. These are their words, not ours.
- ✓Medical weight loss — listed on their site as “At Castello Wellness in Lombard, IL, we offer GLP-1 weight loss treatments including Semaglutide and Tirzepatide—the same active medications found in Ozempic®, Wegovy®, Mounjaro®, and Zepbound®.” source
- ✓Hormone therapy — listed on their site as “Dr. Gregory Castello provides personalized hormone replacement therapy based on your symptoms, medical history, laboratory evaluation, and long-term follow-up.” source