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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Specialties & Research
Dr. Douglas Rubinson, MD, PHD is board certified in Internal Medicine.
He has special expertise in 9 Areas, including Anal Cancer, Bile Duct Cancers, and Colorectal Cancer.6 more special expertise areas
More Specialties & Research
Education & Awards
Dr. Rubinson graduated from Harvard University , Boston.More Education & Awards
Dr. Rubinson has 3 hospital affiliations:
- Massachusetts General Hospital
- Brigham and Women's Hospital
- Dana-Farber Cancer Institute