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 Hayes:
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- Currently 3.5 of 4 stars
The overall average patient rating of Dr. John Hayes is Excellent.
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Specialties & Research
- He has special expertise in 2 areas:
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Education & Awards
Dr. Hayes graduated from New York University - Mount Sinai. He has 1 awards.
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- Additional Information
- Where does Dr. John D. Hayes practice?
Dr. John Hayes practices Obstetrics & Gynecology near Chicago, IL.
See Chicago Obstetricians & Gynecologists.