A centro de saúde is your local public primary-care health centre. It is usually the first place to go for routine healthcare in Portugal once you are registered with the SNS. A USF (Unidade de Saúde Familiar) is a family-health unit within the primary-care network. In practical terms, both are part of the front door to the public health system.
This guide explains how to register, what care you can receive, how to book appointments, what happens if you do not yet have a family doctor, and when to use SNS 24 or a hospital instead.
What does a health centre do?
Portugal’s public health centres provide primary and community care. Depending on the unit, services can include:
- general and family medicine;
- nursing consultations and procedures;
- vaccinations;
- maternal, child and family-planning care;
- chronic-disease monitoring;
- prescriptions and renewals;
- referrals for tests, specialists or hospital care;
- nutrition, psychology, oral-health and social-support services where available;
- some acute/same-day care.
The exact services and opening arrangements vary by local unit. Use the official government health-unit finder to check the unit serving your area and the services it provides.
Centro de saúde, USF and UCSP: what is the difference?
Centro de saúde is the broad term newcomers most often encounter. Within a local primary-care structure, you may actually be assigned to a USF (Family Health Unit) or another primary-care unit such as a UCSP (Unidade de Cuidados de Saúde Personalizados).
For a newcomer, the important question is usually not the organisational label but: which unit serves my address, am I registered there, and do I have an assigned family doctor/team?
Who can register?
Current gov.pt guidance says Portuguese citizens and foreign nationals with residence authorisation in Portugal can register at a health centre. The government recommends using the health centre for your area of residence.
You normally need a número de utente (Portuguese public healthcare patient number). If you do not yet have one, current government guidance says it can be assigned when you register, provided the required information and documents are available.
gov.pt — register at a health centre
Guide #77 explains the número de utente in detail. Remember that having the number and establishing entitlement to SNS-funded care are related but separate administrative issues.
What should a foreign resident bring?
According to current gov.pt guidance, foreign residents may be asked for:
- residence authorisation and its validity;
- proof of permanent Portuguese address;
- civil-identification information/document;
- NIF;
- proof of healthcare benefits/entitlement where relevant, including coordination documents such as an S1 in applicable EU cases.
Bring originals or accessible official digital documents where possible. Local administrative practice can vary, so if your situation involves EU coordination, an S1, a pending residence card or another unusual status, take the supporting documentation with you.
How to register
- Use the official health-unit finder or ask locally which centre covers your address.
- Take your identification, residence/address evidence, NIF and healthcare-entitlement documents.
- Ask to be registered with the centre/unit.
- Confirm your número de utente and contact details.
- Ask whether you have been assigned a médico de família or family-health team.
- Ask the unit how it handles urgent/same-day problems and appointment requests, because procedures can differ locally.
Do you automatically get a family doctor?
No. Registration at a health centre does not guarantee immediate allocation of a named médico de família. Availability depends on local staffing and capacity.
If you do not have a family doctor, you are still part of the SNS once properly registered/entitled. Ask your unit how patients without an assigned doctor obtain routine care, prescription renewals and urgent consultations. Guide #79 is dedicated to the family-doctor issue and what to do if you do not have one.
How do appointments work?
Current government guidance says you must be registered at the relevant health centre to book a primary-care appointment there. You can book general/family-medicine and nursing appointments, and teleconsultations may also be available. The booking itself is free.
gov.pt — book a health-centre appointment
Depending on the unit and service, appointments may be requested through the unit, by telephone or through SNS digital channels. Follow the procedure published by your specific health centre.
What should you take to an appointment?
- identification and número de utente;
- a current medication list, including dose and frequency;
- relevant reports, test results and discharge letters;
- vaccination information where relevant;
- a short list of symptoms/questions, especially if Portuguese is not your first language.
If you take medication prescribed abroad, bring the active ingredient/generic name as well as the brand name. Brand names can differ between countries.
Routine care versus an acute problem
For routine monitoring, vaccinations, chronic disease, prescriptions and non-urgent symptoms, your health centre is usually the right starting point.
For a new illness that cannot reasonably wait, contact your health centre or SNS 24 on 808 24 24 24. SNS 24 can triage symptoms and direct you to the appropriate service. Local primary-care units may have same-day or acute-care arrangements, but availability and terminology vary.
For a serious or life-threatening emergency, call 112.
Do not automatically go to the hospital emergency department
Hospital emergency departments are for urgent/emergency care. Many problems are better handled through primary care or after SNS 24 triage. Using the right entry point can reduce unnecessary waiting and help the system direct resources appropriately.
If specialist or hospital care is needed for a non-emergency problem, primary care often acts as the referral route. Government guidance for hospital consultations lists a referral/credential from the treating doctor among the standard documents for specialist hospital appointments.
Are health-centre appointments free?
Booking a health-centre appointment is free. Current government guidance also reflects the removal of moderating fees from primary-care consultations and diagnostic/therapeutic tests prescribed within the primary-care network. That does not mean every healthcare-related cost in Portugal is universally zero: medicines, private providers and some other situations can still involve patient payment.
Vaccinations, nursing and family care
Health centres are important for Portugal’s vaccination programme and for nursing care. They can also provide maternal/child health and family-planning services. If you move to Portugal with children, pregnancy records or an overseas vaccination history, bring those records when registering.
Prescriptions and referrals
Your primary-care team can prescribe medicines, renew ongoing prescriptions where clinically appropriate, request tests and refer you to specialist care. Do not assume an overseas prescription will automatically be reproduced without a Portuguese clinical review.
Can you change health centre?
Yes, there is a government service for changing health centre. In practice, your residential area and local capacity matter. If you move house, update your address and ask the new local unit about transfer/registration.
Use the government health-services portal and unit finder to locate the appropriate service rather than relying on an old Google listing.
What if the centre says it is full?
Ask what the alternative pathway is for patients living in the area who do not yet have an assigned family-health team. Useful questions include:
- Can I still register even if no family doctor is available?
- How do patients without a family doctor book routine care?
- Is there an open/same-day consultation route?
- Which unit handles prescription renewals or nursing care?
- Should I call SNS 24 before attending for an acute problem?
If the issue is administrative rather than clinical, ask for the reason in writing or request the appropriate complaints/help channel. Do not assume that “no family doctor available” means “no access to SNS care at all.”
Private GP care as a backup
Some residents use a private GP or private hospital network when public primary-care access is slow or when they want a specific appointment time. Large private groups include CUF, Lusíadas Saúde and Hospital da Luz. These are examples, not endorsements.
If using private insurance, check that the exact clinic/doctor is in your network and what co-payment applies. Guide #82 covers private healthcare and insurance in detail.
Useful links
- gov.pt — register at a health centre
- gov.pt — book a health-centre appointment
- gov.pt — find health units
- SNS 24 — digital health information and services; telephone 808 24 24 24
- gov.pt — obtain número de utente
Quick newcomer checklist
- Get or confirm your número de utente and healthcare entitlement.
- Find the health centre/USF serving your address.
- Register and confirm your contact details.
- Ask whether you have an assigned family doctor/team.
- Save the centre’s phone/contact procedure.
- Save SNS 24: 808 24 24 24 and 112.
- Keep your medication, vaccination and medical-history information accessible.
Last verified: 2 October 2026. Primary-care organisation, staffing and local appointment procedures differ between units, so check your own health centre’s current instructions.