Can I see a private nephrologist without a referral?

Yes, and you need nobody’s authorisation

In Spanish private healthcare you can book a specialist directly. No referral letter, no GP sign-off, no prior authorisation. You contact the practice and book.

This differs from the public route, where access to nephrology runs through your primary care doctor, who assesses the case and refers you to the hospital department covering your area.

How the two routes differ

Neither is better in the abstract. They solve different problems.

The public route is the right one for ongoing management of established kidney disease, for anything needing hospital infrastructure — dialysis, transplant, immunosuppressive treatment — and for any acute problem. It is covered, it has a full department behind it, and your GP coordinates your care as a whole.

The private route solves something else: time and access. It is what you want when a blood test comes back abnormal and you would like it explained without waiting months, when you want a second opinion on a diagnosis you already have, or when you want a long consultation in which your full history and medication get reviewed unhurriedly.

Seeing a private nephrologist does not remove you from the public system or interfere with your follow-up there. The two are compatible, and the private consultation report is normally added to your records afterwards.

What to bring

Because there is no referral, there is no prior summary of your case. You make up for that by bringing:

• Blood and urine results, especially the old ones. In nephrology the trend between results says more than any single value: a given creatinine means something entirely different if it has been stable for years than if it has doubled in a few months.
• A list of your current medication, with doses.
• Previous reports from other doctors or hospitals, including from another country.

If your records are in another language it is not a problem. Laboratory values are largely universal, and the consultation runs in English or Spanish as you prefer. Note that Spanish laboratories report creatinine in mg/dL while many other countries use µmol/L — the conversion is mg/dL × 88.4 = µmol/L, and it is the most common source of confusion for patients arriving with a file from abroad.

When it makes sense

You do not need anyone to tell you to go. The most common reasons people book a private nephrology consultation are a creatinine that will not come down, protein or blood found on a urine test, blood pressure that stays high despite medication, or simply wanting to understand a diagnosis that was delivered in two minutes.

If you want to check whether your situation qualifies, the guide on signs you should see a nephrologist goes through each one.