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Castellano Health Institute
(714) 530-2183
Costa Mesa · Orange County

Testosterone therapy and men's health for Costa Mesa. Eleven miles up the 55 — same doctor, every visit.

Castellano Health Institute serves Costa Mesa men an 11-mile drive north on the 55 — one physician who reads your labs in the room with you, flat monthly pricing, and a chart that never changes hands.

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Garden Grove · Mon–Fri 9 AM – 5 PM

The Costa Mesa pattern Dr. Castellano sees most.

The Costa Mesa patient picture is the high-responsibility professional — running a team, a book of business, or a company out of the South Coast Metro corridor. Calendar packed, decisions all day, travel in the mix. The complaint is rarely “I think my testosterone is low.” It’s “I’m flat by Thursday, the gym stopped working, and I’ve been calling it stress for three years.”

Stress and low testosterone overlap on the surface — fatigue, short fuse, poor sleep, drive that’s gone quiet. Labs and a real history separate them. Dr. Castellano orders a focused panel — total testosterone, estradiol, LH, a complete blood count, and PSA when age calls for it — and reads it with you in the room, against your symptoms rather than a population range. If it says hormone deficiency, there is a protocol. If it says three years of compounding workload, the honest answer is different, and you’ll hear that one too.

Testosterone therapy from Costa Mesa: how often you actually make the drive.

The first visit is in person — a one-hour sit-down with Dr. Castellano, then labs, then a plan built on your numbers. That is the visit worth the eleven miles, because it is where the decision gets made.

After that, the drive gets rare. If testosterone therapy is the right call, the first recheck comes at eight weeks with fresh labs, and check-ins drop to quarterly once the protocol is stable. Follow-up visits can happen in the office or by telehealth, so for most Costa Mesa patients the trip is a handful of times a year, not a standing weekly errand. The one exception is by choice: men who prefer in-office injections come in on that schedule instead.

What the program includes and what it costs is laid out on the main TRT page. It is the same program for every patient, wherever they drive in from.

The longer plan, past this quarter.

The number you correct today is one data point on a much longer arc. For the Costa Mesa professional thinking past this quarter, anti-aging care defends muscle mass, bone density, and metabolic function over decades — measured and adjusted against your own baseline, not patched for a season.

Five-star Google review · 2026

“I’m so glad to have found Dr. Castellano. My experience was fantastic. The consultation gave me plenty of time to discuss all of my concerns, and he asked thorough questions that made me feel genuinely seen and heard. I appreciated that he actually took the time to get to know me.

After struggling for quite some time without clear answers to my issues, Dr. Castellano’s insight, along with the bloodwork he ordered, finally helped identify what may have been contributing to my symptoms. I left with greater clarity, a path forward, and a renewed sense of hope.

I’m incredibly grateful to Dr. Castellano for taking my concerns seriously and helping me find answers and solutions.”

Jonathan Villarreal
See it on Google — Jonathan Villarreal’s review

See more patient stories →

Costa MesaTRT — quick answers

The questions Costa Mesa patients ask most before the first visit.

How far is the clinic from Costa Mesa?
About eleven miles — up the 55 to the 22, exit S Euclid. Most Costa Mesa patients are in and out of the office inside 90 minutes including the lab draw. Free on-site parking at the suite.
Does testosterone therapy in Costa Mesa come with a membership fee or pricing tiers?
No. TRT is one flat number — $250 a month, labs and follow-up visits included. No annual membership, no tiers, no per-script charges. You're paying for the physician's time and judgment, and the visit runs as long as the case requires.
Can visits work around a heavy work and travel schedule?
Yes. Because the same physician carries your chart, follow-ups don't restart from zero after a busy quarter. Labs get drawn in-house on the same visit, and once a protocol is stable, Dr. Castellano sizes the follow-up cadence to your calendar — not to a clinic template.
Find the office from Costa Mesa

Eleven miles up the 55. Free parking on-site.

Get directions from Costa MesaCall (714) 530-2183

Costa Mesa patients start with the same core program every man here does: testosterone replacement therapy with Dr. Castellano — $250 a month, labs and follow-up visits included. (The initial consultation and bloodwork before starting are a separate service and cost.)

Ready when you are

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.

Call (714) 530-2183

Calling after hours? Leave a message — we’ll get back to you the next business day.