Treated by:

Hematologist: Focuses on diagnosing and treating blood disorders.

Cardiologist: Specializes in heart disorders.
Pulmonologist: Treats respiratory tract diseases.
Neurologist: Treats nervous system disorders.

Pediatrician: Provides medical care for infants, children, and teenagers.

Primary care provider (PCP): Prevents, diagnoses, and treats diseases.

Emergency medicine doctor: Treats patients in the emergency department.