Energize Testosterone & Wellness Center
Verified listingAbout Energize Testosterone & Wellness Center
What is Energize Testosterone & Wellness Center?
Energize Testosterone & Wellness Center is a nurse practitioner-run clinic at 199 Frontier Park Drive in O’Fallon, Missouri. Its main work is hormone care and medical weight loss, with aesthetic treatments alongside. The only prescriber named is Jennifer McElfresh, MSN, APN-BC, a nurse practitioner who founded the practice. The clinic lists testosterone replacement therapy, hormone replacement therapy, medical weight loss, erectile dysfunction treatment, IV vitamin therapy, Botox, dermal fillers, aesthetics and lashes. The medications it names are semaglutide and bioidentical testosterone injections. It describes itself as functional, integrative and anti-aging medicine.
Visits happen by confirmed appointment on Tuesdays, Thursdays and Fridays. The office is closed Monday, Wednesday, Saturday and Sunday, and it closes for lunch daily from 12 to 1pm.
What does it cost?
It does not publish prices. Its first visit is described as complimentary. In its own words: "The team also reviews your symptoms and medical history at this complimentary visit." It does not say whether medication is included in any price, and it does not say whether it accepts insurance. Before you book, ask for the cost of that first visit, the lab work, the medication and the follow-up visits, each as its own line.
What should you ask before you book?
Ask who writes and signs the prescription, and whether that is McElfresh herself at each renewal. Ask whether the semaglutide is brand-name or compounded, since the clinic does not say. Its weight loss description says medications are shipped directly to you, so ask which pharmacy fills them and whether shipping costs extra. Ask what the lab panels cost, including the nine-panel blood test used for testosterone, and how often they are repeated. Its hormone descriptions mention follow-ups by phone, video and email, and a review every two months. Ask whether those follow-ups are billed separately, and whether video visits are offered at all, since it does not say. Its concierge treatments are described as available outside normal business hours, so ask what they cost. Finally, ask how cancellation works and whether there is a minimum term, because neither is stated.
Who is it a good fit for?
This is a good fit if you want hormone therapy, medical weight loss or aesthetic treatments from a nurse practitioner and you are ready to get the full price in writing before you book. It is a weaker match if you need walk-in access, since visits run by confirmed appointment only on Tuesdays, Thursdays and Fridays.
Sources: energize-wellness.com, energize-wellness.com/service/medical-weight-loss, energize-wellness.com/service/testosterone-replacement-therapy, energize-wellness.com/service/hormone-replacement-therapy
Services Offered
What we confirmed
Read off Energize Testosterone & Wellness Center’s own website on 2026-10-11. These are their words, not ours.
- ✓Medical weight loss — listed on their site as “Medical Weight Loss services offered in O’fallon, MO” source
- ✓Hormone therapy — listed on their site as “Testosterone Replacement Therapy services offered in O’fallon, MO” source
- ✓Longevity / anti-aging — listed on their site as “Aesthetic, Functional, Integrative, Anti-Aging and Regenerative Medicine located in O’fallon, MO” source
Hours
MON Closed; TUE Must have a confirmed appointment; WED Closed; THU Must have confirmed appointment; FRI Must have confirmed appointment; SAT Closed; SUN Closed