Sebastian Niezen
Sebastian Niezen is a Gastroenterology Physician in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts and Pennsylvania.
- Licensed in
- MA, PA
- In the registry since
- 2022
- Specialties on file
- 2
Practice location Address checks out
330 Brookline AveBoston, MA 02215-5400
Phone: (617) 480-3735
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Specialties & licences
| Gastroenterology Physician (primary) | Taxonomy 207RG0100X · Licence 3018049 (MA) |
|---|---|
| Internal Medicine Physician | Taxonomy 207R00000X · Licence MT226639 (PA) |
Record details
| NPI number | 1265162291 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Sole proprietor | Yes |
| NPI enumerated | June 13, 2022 |
| Last updated in NPPES | June 30, 2025 |
| Certification date | June 30, 2025 |
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