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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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Additional Information
Dr. Robert Alexander Marciniak MD is a male Family Practitioner, has 47 years of experience and practices in Family Medicine.
Where does Dr. Robert A. Marciniak practice?
Dr. Robert Marciniak has 1 office location.
Dr. Robert Marciniak practices Family Medicine near Rock Stream, NY.
See Rock Stream Primary Care Doctors.