The electronic transmission of radiographic images from one geographical location to another location is known as teleradiology. Radiological image processing issues occurred during the transmission across various medical image workstations have been handled by this approach, in order to provide various health care activities. (i.e., diagnosis, medical practicing, consulting second opinion, or treatment and monitor a patient). The major difficulties of remote transmission process are privacy, safety, image retention, etc. A noise-tolerant signal is being implanted with a digital watermark furtively (e.g., an image, symbol, audio, video, etc.), concerning the typical identification of the signal's patent. The intention of utilizing digital watermarks is either to validate the carrier signal's authenticity and ethics or to reveal its patent holder's identity, to provide protected transmission. In this work, watermarking approach is implemented to integrate biometrics with cryptography. The entropy-based fingerprint feature has been extracted for generating the key to process the cryptography, and digital imaging and communications in medicine (DICOM) images. To obtain secure transmission, two-level discrete wavelet transform method is employed for watermarking the cover image with encrypted image. Subsequently, the receiver can extract the watermarked image by using watermarking keys. This method is proposed to access the diagnostic image with privacy, accessibility, and reliability. The anticipated outputs of the proposed approach have been assessed based on factors such as structural similarity index measures (SSIM), normalized correlations (NC), and peak-signal-to-noise ratio (PSNR).