Individual provider · Type 1 NPI
Sebastian Niezen
Gastroenterology Physician · Boston, MA
NPI number
1265162291
Active
Practice location
330 Brookline Ave
Boston, MA 02215-5400
Specialties and licenses
| Taxonomy | Code | License |
|---|---|---|
| Gastroenterology Physician Primary | 207RG0100X | 3018049 (MA) |
| Internal Medicine Physician | 207R00000X | MT226639 (PA) |
Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
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- Jaspreet Singh Sandhu, MDGastroenterology Physician Boston, MA NPI 1033746862
About NPI 1265162291
Sebastian Niezen's National Provider Identifier is 1265162291, issued on Jun 13, 2022. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Boston, MA. The record was last updated on Jun 30, 2025.