La pediatra no recibe esta tarde.

Because la pediatra is the subject of the sentence, and Spanish normally uses a definite article with professions when you are talking about a specific person.

So here, la pediatra means the pediatrician.

Compare:

• La pediatra no recibe esta tarde. = The pediatrician isn’t seeing patients this afternoon.
• Es pediatra. = She is a pediatrician.

After ser, professions usually appear without an article, but when the profession itself is the noun referring to a person, the article is very common.

Because la shows that the pediatrician is female.

In modern Spanish, pediatra can refer to either a male or female pediatrician, and the article usually tells you the gender:

• el pediatra = the male pediatrician
• la pediatra = the female pediatrician

So the noun stays the same, but the article changes.

This is a very common source of confusion.

The verb recibir literally does mean to receive, but in medical or office contexts in Spain, recibir can mean to receive patients, which naturally becomes to see patients, to hold consultations, or to be available for appointments.

So in this sentence, La pediatra no recibe esta tarde does not mean she is physically unable to receive something. It means she is not consulting / not seeing patients this afternoon.

This is a contextual meaning of the verb.

Yes, you can think of there being an understood object such as pacientes or consulta behind the sentence.

For example, the fuller idea could be:

• La pediatra no recibe pacientes esta tarde.
• La pediatra no pasa consulta esta tarde.

But Spanish often leaves that unstated when the context is obvious, especially in a clinic, hospital, or receptionist-type context.

So no recibe is enough on its own.

Because Spanish usually leaves out subject pronouns when they are not needed.

The verb form recibe already tells you it is he/she/it. Since the subject la pediatra is already stated, adding ella would be unnecessary.

So Spanish prefers:

• La pediatra no recibe esta tarde.

rather than:

• La pediatra ella no recibe esta tarde. ❌

You could say Ella no recibe esta tarde if the subject were already clear from context and you wanted to emphasize she.

Because Spanish often uses the present tense to talk about scheduled, planned, or near-future events.

So no recibe esta tarde is a normal way to say that later today, during the afternoon, she will not be seeing patients.

This works much like English:

• The doctor isn’t seeing patients this afternoon.
• The train leaves at six.

Even though the time is future from the moment of speaking, the present tense sounds natural because it refers to a schedule or arrangement.

Because Spanish usually prefers the simple present for schedules, routines, and general availability.

• No recibe esta tarde = she is not seeing patients this afternoon / she does not have consultations this afternoon

Using no está recibiendo would focus more on an action in progress at a specific moment, which does not fit as well here.

So:

• No recibe esta tarde = normal and idiomatic
• No está recibiendo = more like she is not currently in the middle of seeing patients

In Spain, la tarde is the part of the day after lunch and before night, so esta tarde usually means this afternoon, sometimes extending into what English speakers might think of as early evening.

This is different from:

• esta mañana = this morning
• esta tarde = this afternoon / later today before night
• esta noche = tonight

So in Spain, tarde often covers a wider time period than English afternoon.

Because expressions like hoy, mañana, esta tarde, esta noche, este fin de semana often work directly as time expressions in Spanish without a preposition.

So you say:

• No recibe esta tarde.
• Llega mañana.
• Trabajamos este fin de semana.

You would not normally say en esta tarde here.

A related expression is por la tarde, but that means in the afternoon in a more general sense:

• No recibe por la tarde. = She doesn’t see patients in the afternoons.
• No recibe esta tarde. = She isn’t seeing patients this afternoon.

Yes. Spanish word order is flexible, and moving esta tarde to the front is perfectly possible.

Compare:

• La pediatra no recibe esta tarde.
• Esta tarde la pediatra no recibe.

Both are correct. The difference is mainly one of emphasis or information flow.

• La pediatra no recibe esta tarde sounds like a neutral statement about the pediatrician.
• Esta tarde la pediatra no recibe puts more focus on this afternoon.

In standard Spanish, no goes directly before the conjugated verb.

So here:

• La pediatra no recibe esta tarde.

That is the normal pattern:

• No trabaja hoy.
• No viene mañana.
• No atiende por la tarde.

You do not put no after the verb.

Yes. It comes from recibir, which is a regular -ir verb.

Present tense:

• yo recibo
• tú recibes
• él / ella / usted recibe
• nosotros recibimos
• vosotros recibís
• ellos / ellas / ustedes reciben

So recibe matches la pediatra, which is a third-person singular subject.

Yes, it sounds natural, especially in medical or administrative contexts in Spain.

A receptionist or sign might say:

• La pediatra no recibe esta tarde.

Other natural alternatives in Spain could include:

• La pediatra no pasa consulta esta tarde.
• La pediatra no atiende esta tarde.

But no recibe is absolutely plausible and idiomatic in the right context.