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. Mark Barr:
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Specialties & Research
Dr. Mark Barr, MD is board certified in Anesthesiology, Anesthesiology - Critical Care Medicine, Internal Medicine, and Cardiovascular Disease.
He has special expertise in 8 Areas, including Bronchiolitis Obliterans, Coronary Artery Disease CAD, and Coronary Disease.5 more special expertise areas
More Specialties & Research
Education & Awards
Dr. Barr graduated from New York University - Mount Sinai. He has 2 awards.
Dr. Barr has 16 hospital affiliations:
- John Muir Medical Center, Walnut Creek Campus
- USC University Hospital
Accepted Insurance Plans
Dr. Barr accepts these health insurances in at least one office:
- United Healthcare - 24 plans
- Blue Shield of California - 91 plans
- Great-West Healthcare - 2 plans
- Molina Healthcare - 2 plans
- Unicare - 12 plans
- Care 1st Health Plan - 2 plans
- Anthem Blue Cross - 2 plans
- LA Care Health Plan - 3 plans
- Humana - 6 plans
- Cigna - 3 plans
- CaIOPTIMA - 2 plans
- USA H & W Network - 1 plan
More Accepted Insurance
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- Additional Information
- Where does Dr. Mark L. Barr practice?
Dr. Mark Barr practices Internal Medicine, Cardiovascular Disease, Critical Care Medicine, Cardiology, Anesthesiology, Critical Care Medicine, Transplant Surgery, Surgery, Thoracic Surgery, Cardiothoracic Vascular Surgery, and Critical Care Medicine near Los Angeles, CA.
See Los Angeles Internists, Los Angeles Cardiologists, Los Angeles Critical Care Practitioners, Los Angeles Anesthesiologists, Los Angeles Urgent Care Centers, Los Angeles Surgeons, Los Angeles Cardiothoracic Surgeons, and Los Angeles Obstetricians & Gynecologists.