
Physician-reviewed TRT access guide
Testosterone can be prescribed by several types of licensed physicians when a patient has an appropriate diagnosis and no contraindication. The specialty matters less than whether the clinician understands testosterone deficiency, fertility, monitoring and long-term risk management.
Medically reviewed by Dr. Timothy Mackey
Medical Director · Updated September 2026

Primary-care physicians, internal-medicine physicians, endocrinologists and urologists can all evaluate men for testosterone deficiency and prescribe TRT when medically appropriate. Some family-medicine and other physicians also develop substantial experience in hormone management.
What matters most is not the specialty label. A good TRT clinician should confirm the diagnosis properly, understand fertility implications, choose an appropriate formulation, monitor blood pressure and hematocrit, consider prostate risk when relevant, and adjust treatment based on both symptoms and laboratory data.
Primary-care and internal-medicine physicians often diagnose and manage low testosterone, especially when it occurs alongside obesity, diabetes, hypertension, sleep apnea, medication use or other chronic conditions. They are well positioned to evaluate whether symptoms may have another medical cause before testosterone is prescribed.
Endocrinologists specialize in hormone disorders and may be especially useful when testosterone deficiency is caused by pituitary disease, unusual LH/FSH patterns, hyperprolactinemia, thyroid disease or another complex endocrine condition.
Urologists frequently treat testosterone deficiency in men and are especially valuable when fertility, testicular disease, erectile dysfunction, urinary symptoms, prostate findings or prior prostate treatment are part of the picture.
Some physicians in internal medicine, family medicine, urology or other specialties focus a significant portion of their practice on testosterone and men's health. Experience can be valuable, but marketing terms such as “hormone specialist” or “anti-aging doctor” are not substitutes for appropriate licensure, diagnosis and monitoring.
Testosterone is a controlled prescription medication in the United States. A clinician must be appropriately licensed and authorized to prescribe controlled substances under applicable federal and state law. Scope-of-practice rules can vary by state and by professional license.
From a patient's perspective, the key question is not simply whether a clinician can prescribe testosterone. It is whether that clinician can diagnose testosterone deficiency correctly and manage treatment safely over time.
Major guidelines recommend diagnosing testosterone deficiency from both compatible symptoms or signs and consistently low testosterone concentrations. In most cases, that means repeat morning total-testosterone testing rather than treating one borderline result.
Depending on the situation, additional testing may include free testosterone, SHBG, LH, FSH, prolactin, CBC/hematocrit, PSA when appropriate, thyroid studies and metabolic testing. See our guide to blood tests before TRT.
Our testosterone prescription and evaluation guide explains the process from the first appointment through follow-up.
Fatigue, low libido, erectile dysfunction, poor concentration, depressed mood and reduced exercise performance can occur with testosterone deficiency, but they are also common in sleep apnea, depression, obesity, thyroid disease, medication effects and other conditions.
A clinician who prescribes testosterone based only on a symptom checklist without confirming low levels may miss the real cause of the problem.
Testosterone varies with time of day, illness, sleep, calorie intake and laboratory conditions. Guidelines generally recommend repeat testing because a single low value may not represent a persistent deficiency.
Borderline results can require more context, including SHBG and free testosterone in selected patients.
Exogenous testosterone suppresses pituitary LH and FSH and can markedly reduce sperm production. Men who may want biological children should discuss fertility before beginning treatment, not after months or years of therapy.
Depending on the diagnosis and fertility goals, alternatives or adjuncts such as hCG or SERM-based approaches may be considered in selected men. See our TRT and fertility guide.
Responsible TRT care continues after the prescription is written. Follow-up typically includes symptom review, testosterone levels timed appropriately for the formulation, CBC/hematocrit, blood pressure and additional testing based on age, medical history and risk.
PSA/prostate monitoring may be appropriate for selected men. A rising hematocrit, worsening blood pressure, new edema, fertility concerns or other adverse effects should trigger clinical review rather than automatic continuation of the same dose.
See our guides to hematocrit on TRT and TRT and blood pressure.
Not necessarily. A knowledgeable primary-care or internal-medicine physician may be entirely appropriate for straightforward testosterone deficiency. Endocrinology becomes particularly useful when pituitary or systemic endocrine disease is suspected. Urology can be especially helpful when fertility, prostate, testicular or urinary issues are prominent.
The best choice depends on the complexity of the case.
Some physicians choose not to manage testosterone because it is outside the focus of their practice or because they prefer referral to a specialist. That does not automatically mean the patient should or should not receive TRT.
If symptoms and repeated laboratory testing support concern for testosterone deficiency, a second opinion from a clinician experienced in male hormone care can be reasonable. See our article on why a doctor may decline TRT.
A good clinic should provide transparent medical evaluation rather than guarantee a prescription. It should explain testing, diagnosis, treatment options, fertility implications, side effects, pharmacy sourcing, follow-up and total cost before the patient commits.
Independent reviews can also be useful when evaluating communication, billing practices, refill reliability and whether the experience matches the clinic's advertising. Read our guide to choosing a TRT clinic.
Telemedicine can be used for testosterone evaluation and follow-up when the clinician complies with applicable federal and state prescribing rules and performs an appropriate medical evaluation. Controlled-substance prescribing requirements can change, so patients should use a legitimate medical practice rather than assume every online testosterone service follows the same standards.
The clinical standard should be the same whether care is delivered in person or remotely: correct diagnosis, informed consent, appropriate monitoring and access to follow-up.
No. Endocrinologists commonly treat low testosterone, but primary-care, internal-medicine and urology physicians can also evaluate and prescribe TRT when appropriately licensed and experienced.
Yes, when the clinician is authorized to prescribe controlled substances and determines that treatment is medically appropriate.
Yes. Urologists commonly treat testosterone deficiency, particularly when sexual health, fertility, testicular or prostate issues are involved.
Repeat morning testosterone testing is usually central to diagnosis. Additional tests may include free testosterone, SHBG, LH, FSH, prolactin, CBC/hematocrit, PSA when appropriate and other testing based on the medical history.
Not automatically. Treatment decisions should consider symptoms, repeat measurements, reference ranges, SHBG/free testosterone when relevant, age, health conditions and whether another cause better explains the symptoms.
NovaGenix can review symptoms, repeated testosterone testing, medical history, fertility goals and treatment options before determining whether TRT is appropriate. Learn about Dr. Timothy Mackey, visit About NovaGenix, or review our complete TRT guide.
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This article is educational and does not replace individualized medical advice. Testosterone should be prescribed only after an appropriate medical evaluation by a properly licensed clinician.
Speak with NovaGenix about physician-led evaluation, testing, and treatment options in Jupiter, Florida.
Medical disclaimer: This article is for general educational purposes only and is not medical advice, a diagnosis, or a treatment recommendation. Reading it does not create a physician-patient relationship. Always consult a qualified healthcare professional about your individual circumstances, and never delay seeking care because of something you read here. If you are experiencing a medical emergency, call 911. Read our full Medical Disclaimer.


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609 N Hepburn avenue suite 106. Jupiter, Florida 33458
561-277-8260
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