This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.
Doctors / TX
PHYSICIAN ASSISTANT
Graduated: 2010
Offers telehealth
NPI: 1124311584
MARTHA ST. JOHN, M.D., P.A.
14811 SAINT MARYS LN, SUITE 270
HOUSTON, TX 770792908
2814973500
Source: CMS National Downloadable File, September 2026.