For prescriptions transmitted by facsimile for Schedule III through V controlled substances, the required information is carefully outlined to ensure compliance with regulations. Among the information that must be included, the DEA number of the prescribing doctor serves as a vital piece of data, as it verifies that the provider is licensed to prescribe controlled substances. The date of the prescription is also necessary; it indicates when the prescription was written and is critical for determining its validity period. Additionally, the name and strength of the drug prescribed are essential for accurately filling the prescription, ensuring the patient receives the correct medication.
The patient's date of birth is not mandated in the same way as the aforementioned pieces of information. While having it can help confirm the patient’s identity and ensure the prescription is appropriate for the patient's age and condition, it is not explicitly required by the regulations governing faxed prescriptions for Schedule III through V drugs. Thus, this piece of information is the correct answer as it is not a necessary component of the facsimile prescription transmission requirements.