Men's health and TRT for Tustin. Nine miles up the 5 — an hour with the doctor, not fifteen minutes.
Castellano Health Institute serves Tustin men a 9-mile drive up the 5 — same doctor every visit, full in-house labs, and a first consult that runs a full hour because that's what a real workup takes.
Garden Grove · Mon–Fri 9 AM – 5 PM
The Tustin pattern Dr. Castellano sees most.
The Tustin patient picture is the mid-career professional — office and tech-park jobs around Tustin Legacy and The District, or the daily commute down the 5 into the Irvine employment corridor. Salaried, scheduled, forty to fifty-five. He keeps his annual physical, and every year it comes back “fine.” He doesn’t feel fine. Slower recovery, a softer middle, focus that takes more coffee to hold, and a drive that’s quietly gone missing.
The gap between “your labs are normal” and “you feel right” is usually a depth-of-workup gap. A standard screening panel checks a handful of boxes against a wide reference range. Dr. Castellano runs the full picture — testosterone with its related markers, thyroid, metabolic panel — and evaluates the numbers against your symptoms and your own baseline, not just the population range. That’s the read a fifteen-minute slot can’t do, and it’s the reason the first consult here runs a full hour.
How the Tustin TRT options compare honestly.
Tustin sits inside one of the best-served health markets in the county — the Irvine medical corridor is minutes away, telehealth reaches everywhere, and chain clinics operate within a short radius. Nobody in Tustin lacks options. The honest framing is that most of those options are built for throughput: standardized protocols, rotating providers, visits sized to a billing template.
Castellano Health Institute, nine miles up the 5, is built the other way: one physician, your chart in his hands every visit, labs drawn in-house and read with you in the room. If your case is simple and a standardized protocol is working, the closer option may genuinely fit. If you’ve been told “normal” twice and still don’t feel it, the longer look is what the drive buys.
Same doctor every visit. From Tustin to your follow-up.
When you drive in from Tustin, you’re not joining a chain. You’re starting a relationship with one doctor — Dr. Castellano (UC Irvine–trained, board-certified Family Medicine, anti-aging fellowship credentials, three decades in practice). Same physician, same conversation, every appointment.
And TRT isn’t the only conversation worth having — for the Tustinpatient whose hormone panel reads borderline while the symptoms don’t, hormone support runs the wider workup that often finds the thyroid or cortisol pattern underneath.
Coming soon.
Dr. Castellano sees Tustin men every week. Their before-and-after stories will land here as patients give consent to share. In the meantime, ask about results in person — bring your most recent labs and we’ll show you how the trend lines look in practice for Tustin patients.
The questions Tustin patients ask most before the first visit.
- How far is the clinic from Tustin?
- Nine miles — up the 5 to the 22, exit S Euclid. Most Tustin patients are in and out of the office inside 90 minutes including the lab draw. Free on-site parking at the suite.
- What does the first visit look like?
- A one-hour sit-down with Dr. Castellano — history, symptom picture, options. A full hormone panel and metabolic bloodwork get ordered from the visit if they're not already on file. No protocol gets written before the labs come back and you've talked them through together.
- What's the typical protocol cost?
- TRT is a flat $250 a month — that includes the medication, the lab work, and the monthly follow-up. No package add-ons, no contract. If TRT isn't the right call after the labs come back, no one is locked in.
Nine miles up the 5. Free parking on-site.
One conversation tells you whether this is the right fit.
Call the office to set up a 1-hour consult with Dr. Castellano. Bring whatever bloodwork you have on file — or fresh labs get ordered up front. Either way, you’ll leave with a real read on what’s going on.
Calling after hours? Leave a message — we’ll get back to you the next business day.