No. In general, except for the exceptions of reproductive health and emergencies, minors may not consent, on their own, to medical treatment.  That means parents have to agree or the doctor is in trouble.   A doctor can give emergency medical treatment to a minor without parental consent.  The doctor must believe that delay while waiting for permission would seriously increase risk to the minor’s life, health or welfare, or prolong suffering. [1]

In both Maryland and D.C., minors who are pregnant can make all medical decisions without their parents’ permission. [2]

[1] The emergency exception is found at Md. Code, Health - General, § 20-102(b) and 22 DCMR § 600.4. 

[2] See sources cited at note 1 above.