My dream is doctor. vs My dream is a doctor.

Some examples from the web:

• My dream is to be a doctor.
• It's these dreams, Doctor.
• I dream you killed that doctor.
• It's these dreams, Doctor. I keep having them, and they're terrible.
• And you are not being paid to be a dream doctor.
• See, like many of you, growing up, I was an honor roll student, a scholarship student, with dreams of becoming a doctor.
• We can achieve every doctor's dream.
• is every doctor's dream job.
• My dream is to be a doctor some day -
• My dream is to focus as a politician.
• My dream is to have the park system privatized and run entirely for profit by corporations.
• My dream is to be posted to Brazil.
• My dream is of eternity with you.
• My dream is to buy a Lamborghini tractor.
• One of my dreams is to learn Icelandic.
• My dream is to work for Coty.
• My dream is to win street.
• My dream is to race cars.
• My dream is to become a pediatric surgeon.
• My dream is a bit different.

Some examples from the web:

• My dream is to be a doctor.
• It's these dreams, Doctor.
• I dream you killed that doctor.
• See, like many of you, growing up, I was an honor roll student, a scholarship student, with dreams of becoming a doctor.
• It's these dreams, Doctor. I keep having them, and they're terrible.
• And you are not being paid to be a dream doctor.
• My dream is to be a doctor some day -
• Every male in my family is a doctor.
• And all you need is a doctor.
• Gary's father is a doctor.
• Cookie, my father is a doctor.
• Gabriel... This man is a doctor.
• Dan, my dad is a doctor.
• Our best friend is a doctor.
• All she really needs is a doctor.
• He's young, but he really is a doctor.
• As you might know, my husband is a doctor.
• Technically, anyone with a PhD is a doctor.
• You know, Craig is a doctor.
• Stewardess, I think the man neXt to me is a doctor.