Individual
SEBASTIAN NIEZEN
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Contact information
Practice address
330 BROOKLINE AVE, BOSTON, MA 02215-5400
(617) 480-3735
Mailing address
330 BROOKLINE AVE, BOSTON, MA 02215-5400
(617) 480-3735
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
MT226639
PA
207RG0100X
Gastroenterology Physician
Primary
3018049
MA
Other
Enumeration date
06/13/2022
Last updated
06/30/2025
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Contact us