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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Education & Awards

Dr. Massingill graduated from The University of Texas at Houston.


  • Spanish

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Additional Information
Dr. John Lee Massingill DDS is a male dentist, has 22 years of experience and practices in Family Dentistry.
Where does Dr. John L. Massingill practice?
Dr. John Massingill has 1 office location.
Dr. John Massingill practices Family Dentistry near Bellaire, TX.
See Bellaire Dentists.