The term primary care physician is identified in base64 scheme by the sequence cHJpbWFyeSBjYXJlIHBoeXNpY2lhbg==, while the MD5 signature is equal to 472f45b1498cba649eec3059c11f00a6. The ASCII encoding of primary care physician in hexadecimal notation is 7072696d61727920636172652070687973696369616e.