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. Daniel Greif:
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Specialties & Research
Dr. Daniel Greif, MD is board certified in Cardiovascular Disease.
- He has special expertise in 5 areas:
- Acute Coronary Syndrome (ACS)
- Heart Block
- High Blood Pressure (Hypertension)
- High Cholesterol (Hypercholesterolemia)
- Unstable Angina
Education & Awards
Dr. Greif graduated from University of California at San Francisco.
Dr. Greif has 2 hospital affiliations:
- Yale-New Haven Hospital
- Mills-Peninsula Health Services
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- Additional Information
- Dr. Daniel M Greif MD is a male Internist, has 14 years of experience and practices in Internal Medicine and Cardiovascular Disease.
- Where does Dr. Daniel M. Greif practice?
- Dr. Daniel Greif has 2 office locations.
Dr. Daniel Greif practices Internal Medicine and Cardiovascular Disease near Guilford, CT.
Additional practice locations include: New Haven, CT.
See Guilford Internists and Guilford Cardiologists.