Texas Occupations Code - OCC § 205.253. Procedure for Renewal

(a) A person who is otherwise eligible to renew a license may renew an unexpired license by paying the required renewal fee to the medical board before the expiration date of the license. A person whose license has expired may not engage in activities that require a license until the license has been renewed under this section or Section 205.254.

(b) If the person's license has been expired for 90 days or less, the person may renew the license by paying to the medical board a fee in an amount equal to one and one-half times the required renewal fee.

(c) If the person's license has been expired for longer than 90 days but less than one year, the person may renew the license by paying to the medical board a fee in an amount equal to two times the required renewal fee.

(d) If the person's license has been expired for one year or longer, the person may not renew the license. The person may obtain a new license by submitting to reexamination and complying with the requirements and procedures for obtaining an original license.