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 Grigas:
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- Currently 1.5 of 4 stars
The overall average patient rating of Dr. John Grigas is Satisfactory.
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Specialties & Research
Dr. John Grigas, MD is board certified in Internal Medicine, Critical Care Medicine, Pulmonary Disease, and Sleep Medicine.
- He has special expertise in 2 areas:
Education & Awards
Dr. Grigas graduated from University of Florida, Gainesville.
Dr. Grigas has 7 hospital affiliations:
- Baptist Medical Center
- Baptist Downtown
Accepted Insurance Plans
Dr. Grigas accepts these health insurances in at least one office:
- Aetna - 3 plans
- United Healthcare - 19 plans
- Blue Cross Blue Shield of Florida - 9 plans
- Unicare - 11 plans
- AvMed Health Plans - 7 plans
- Americhoice - 1 plan
- Humana - 28 plans
- Cigna - 6 plans
- Blue Cross Blue Shield of Nebraska - 1 plan
Similar doctors nearby
- Additional Information
- Where does Dr. John D. Grigas practice?
Dr. John Grigas practices Internal Medicine, Pulmonary Disease, Critical Care Medicine, Sleep Medicine, Critical Care Medicine, and Critical Care Medicine near Jacksonville, FL.
See Jacksonville Internists, Jacksonville Pulmonologists, Jacksonville Critical Care Practitioners, Jacksonville Sleep Medicine Doctors, Jacksonville Anesthesiologists, and Jacksonville Obstetricians & Gynecologists.