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Castellano Health Institute
(714) 530-2183
Testosterone Therapy · Orange County

TRT, the way it's supposed to work. $250 a month, flat.

Real testosterone replacement therapy — practiced 1-on-1 by Dr. Castellano since 1999, drawn from the current peer-reviewed research in men’s hormone medicine. The 1-hour sit-down comes first, then the labs, then a real plan calibrated to your numbers. $250 a month flat — labs and follow-ups included — and a straight answer if TRT isn’t actually what you need.

Call to ScheduleSee what's included
Dose set by your testosterone levelsHormone panel read before any prescriptionHonest alternatives if TRT isn't right for you
Flat, monthly, all-in
$250/ month

Includes labs, monthly follow-ups, refills, and your visits with Dr. Castellano.

  • Labs-led, not script-led
  • 1-on-1 with Dr. Castellano every visit
  • Cancel any month, no contract
Call (714) 530-2183

Most patients are evaluated and started within 1–2 weeks.

Why Men Come In

Not “just aging.” Here’s what to look for.

No two men describe low testosterone the same way. But after thirty years of practice, the same handful of signs come up over and over — especially after 35.

Take the 2-minute self-assessment
  • Energy that drops off in the afternoon and never quite comes back
  • Sleep that doesn't refill the tank — tired even after 8 hours
  • Strength and recovery slipping despite the same effort at the gym
  • Libido and morning erections noticeably lower than they used to be
  • Mood, focus, motivation that feel flatter than baseline
  • Stubborn weight around the middle that doesn't move with the same diet
Gloved hand holding a labeled testosterone blood test tube — lab-led TRT process at Castellano Health Institute
How It Works

Four steps. Built around your labs, not a script.

If you’re planning children

TRT can suppress sperm production and may affect fertility while on treatment. Men actively trying to conceive, or planning children in the near future, should discuss fertility-preserving options before starting therapy.

  1. 01

    Sit-down visit

    1-hour, 1-on-1 with Dr. Castellano. He walks through your labs with you, then you decide together whether TRT is right for you.

  2. 02

    Bloodwork

    Full hormone panel + metabolic markers. Lab order goes out same day you call. ~30 minutes at the lab.

  3. 03

    Plan the protocol

    If TRT is the call: choose your form (in-office injection, self-administered injection, or topical), start the protocol, $250/mo flat from there.

  4. 04

    Recheck + adjust

    Labs at 6 weeks, then quarterly. Monthly follow-up visit. Dr. Castellano adjusts the protocol based on your numbers and how you feel.

What $250 Covers

Everything you actually need. Nothing you don't.

No consult fees, no per-script charges, no quarterly "membership" up-charges. Flat monthly price, top to bottom — the way pricing should work.

Call (714) 530-2183
  • Full hormone panel + metabolic bloodwork
  • 1-hour initial consult, 1-on-1 with Dr. Castellano
  • TRT medication — injection (in-office or self), or topical
  • Monthly follow-up visit (in-office or telehealth)
  • 6-week recheck labs, then quarterly monitoring
  • Refills included — no per-prescription fee
  • Same doctor every visit (no rotating providers)
  • No long-term contract — cancel any month
When TRT isn’t the answer

TRT isn’t appropriate for every man. Dr. Castellano will tell you in your first visit if it isn’t right for you.

Active prostate cancer, certain cardiac conditions in the past six months, men actively trying to conceive, and certain blood disorders are reasons to wait or pursue a different path — often the wider hormone support workup, sometimes a referral.

Dr. Castellano — Orange County TRT physician since 1999
About the Doctor

Dr. Castellano — Orange County, since 1999.

Trained at UC Irvine School of Medicine ('96). Board-certified in Family Medicine (ABFM). Advanced certifications in Anti-Aging and Regenerative Medicine (ABAARM, Anti-Aging Fellowship). Three decades of practice in the same Orange County market.

The practice is set up around one principle: men's health works better when it's the same doctor every visit, the same chart, the same conversation continuing — not a rotating cast of providers reading your file for the first time.

UC Irvine '96
School of Medicine
ABFM
Family Medicine
ABAARM
Anti-Aging board
Fellowship
Anti-Aging
Why a One-Doctor Practice

The chain-clinic model isn’t the only way men’s health gets done. It just got loudest.

Most TRT clinics in Orange County are franchise locations of national chains. Same logo, different city, rotating provider, scripted protocol. Castellano Health Institute is a single-doctor practice in the same building Dr. Castellano has worked from since the early years of his career. Three things follow from that.

Athletic man with a kettlebell in a dark gym — strength and energy that come from properly managed testosterone

The same eye, every visit.

The doctor reading your bloodwork at month one is the same doctor reading your bloodwork at month thirty-six. Patterns get spotted because the same eye keeps watching. Nothing gets handed off.

Decades of pattern recognition

After three decades of practicing in the same Orange County market, the unusual labs, the medication interactions, the symptom clusters that don't fit the textbook — those are the cases experience helps with. Hard to fake. Impossible to franchise.

Labs-led, not script-led

Same-day-start clinics work because they're optimized for throughput. A one-doctor practice is optimized for the right call. If your labs say no TRT, the answer is no TRT — even if you came in expecting a prescription.

Low testosterone often shows up alongside erectile dysfunction and is the foundation of any honest anti-aging plan. The same hormone panel evaluates all three.

Common Questions

The questions men actually ask before they call.

Don't see yours? Call the office and ask Dr. Castellano directly.

Reading first? Why supplements aren’t the same — and why labs matter first.

Wondering how TRT differs from anabolic steroids? Read about anabolic steroid care — the medical work without the lecture.

What does the $250/month actually cover?
Your full TRT protocol with Dr. Castellano — the medication itself, your lab work (initial panel and follow-up rechecks), monthly follow-up visits, and refills. There's no separate consult fee, no surprise bill, and no long-term contract. If it's not working for you, you cancel any month.
Do I need bloodwork before my first visit?
No. The first visit is a 1-hour sit-down with Dr. Castellano. If you have recent bloodwork (within the last 6 months), bring it — Dr. Castellano walks through it with you in the visit. If not, the lab order goes out the same day and you'll review results together at the next touch. Either way, no one starts therapy here without lab values to back the decision.
Is this the same doctor every visit?
Yes — every visit is with Dr. Castellano. There's no rotating provider model and no PA seeing you on alternating months. That's the whole point of how the practice is set up.
How long until I notice changes?
Many appropriately diagnosed patients begin noticing changes in energy or sleep within the first several weeks, while libido, strength, and body-composition changes often take longer. Response varies, which is why labs and symptoms are rechecked at 6 weeks and then monitored over time.
What forms of TRT does Dr. Castellano use?
In-office injection, self-administered injection, or topical — Dr. Castellano matches the form to your schedule, comfort, and lab response. He'll walk through the trade-offs in the first visit so you know what you're choosing and why.
Do you treat men outside Garden Grove?
Yes — the practice serves the full Orange County cluster. Patients drive in from Anaheim, Westminster, Santa Ana, Stanton, Cypress, Buena Park, Orange, Fountain Valley, Huntington Beach, Costa Mesa, Tustin, Fullerton, Long Beach, and the wider Los Angeles edge. The clinic sits right off the 22 with free parking.
What if my labs don't show low testosterone?
Then no TRT. Dr. Castellano won't prescribe what isn't indicated. Often what feels like low T is sleep, stress, thyroid, or a metabolic issue — and the visit is still worth having so you know what's actually going on. The hormone support workup picks up where TRT alone stops.
Does TRT cause prostate cancer? Should I be monitored?
Current clinical evidence has established that physiologic testosterone replacement does not increase prostate cancer risk in clinically appropriate patients. That said, TRT decisions include prostate history and PSA monitoring where appropriate. Men with prostate cancer history, elevated PSA, or active prostate symptoms need individualized review and/or urology coordination before treatment. Dr. Castellano monitors PSA as part of standard TRT follow-up.
What about cardiovascular safety?
Recent peer-reviewed meta-analyses have consistently shown no increased cardiovascular risk with testosterone therapy in clinically indicated patients. As part of standard follow-up, Dr. Castellano monitors hematocrit (red blood cell count), lipids, estradiol, and PSA — the markers that matter for long-term safety on TRT.
How much do labs cost separately if I bring my own bloodwork?
If you have a recent panel (within 6 months) and bring it in, the labs are essentially free — your $250/month covers the visit and follow-ups. If labs need to be redrawn or expanded, that ordering and review is also folded into the same flat monthly figure. There's no separate lab bill once you're a patient.
Do you accept insurance for TRT visits?
The practice runs cash-pay for TRT — no insurance billing, no prior-auth delays, no surprise out-of-network charges. The $250/month is the total. Some patients submit their visit receipts to insurance for partial reimbursement (HSA / FSA cards work in most cases); the front desk can hand over the documentation if asked.
What happens at the 6-week recheck — what changes?
Bloodwork gets redrawn (total testosterone, free testosterone, estradiol, hematocrit, PSA where appropriate). Dr. Castellano walks through the numbers with you, looks at how you're feeling against the labs, and fine-tunes the dose or delivery method if the picture suggests it. After that, the cadence drops to quarterly check-ins.
Patient Voices

Real patients. Real reviews. Verified by Google.

Serving Orange County

TRT for the Orange County corridor.

The clinic sits on S Euclid St in Garden Grove — easy reach from Anaheim, Westminster, Santa Ana, and the wider OC corridor. Free on-site parking.

We see patients from Garden Grove, Anaheim, Westminster, Stanton, Santa Ana, Cypress, Buena Park, Orange, Fountain Valley, Huntington Beach, Costa Mesa, Tustin, Fullerton, Long Beach, Los Angeles, and across Orange County.

Ready when you are

Book the 1-hour consult.

Call the office. Dr. Castellano (or his front desk) will get back the same business day to confirm a time.

Call (714) 530-2183Get directions
12460 S Euclid St, #101 · Garden Grove, CA 92840
Mon–Fri 9 AM – 5 PM

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