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Obstetrician & Gynecologist (OB/GYN)

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).

Learn more about Dr. John Martin:

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Specialties & Research

Dr. John Martin, DDS, DMD, MD is board certified in Obstetrics & Gynecology.

  • He has special expertise in 2 areas:
  • Hot Flashes
  • Menopause

Education & Awards


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Additional Information
Dr. John Barlow Martin DDS, DMD, and MD is a male Obstetrician & Gynecologist and practices in Obstetrics & Gynecology.
Where does Dr. John B. Martin practice?
Dr. John Martin has 1 office location.
Dr. John Martin practices Obstetrics & Gynecology near Saint Louis, MO.
See Saint Louis Obstetricians & Gynecologists.