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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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Specialties & Research

  • He has special expertise in 2 areas:
  • Asthma
  • Insomnia


Dr. Allen has 5 hospital affiliations:

  • Saint Joseph Mercy Livingston Hospital 
  • Chelsea Community Hospital 


  • French

> > > > Dr. William Allen, MD

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Additional Information
Dr. William Thomas Allen MD is a male Pulmonologist and practices in Pulmonary Disease and Sleep Medicine.
Where does Dr. William T. Allen practice?
Dr. William Allen has 1 office location.
Dr. William Allen practices Pulmonary Disease and Sleep Medicine near Southfield, MI.
See Southfield Pulmonologists and Southfield Sleep Medicine Doctors.