MR. STEVEN J KASSELS MD
NPI 1154458735
Internal Medicine in Westfield, MA
About Mr. Steven J Kassels Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. STEVEN J KASSELS MD (NPI 1154458735) is an individual internal medicine provider in Westfield, Massachusetts, licensed in Massachusetts (77240) and active in the NPI registry since February 2007.
NPPES Registry Identity
Specialties & Licenses 2
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTFIELD, MA 01085
WESTFIELD, MA 01085
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Steven Kassels's NPI number?
The NPI number for Steven Kassels is 1154458735. It was assigned to this individual provider in the NPPES registry on February 28, 2007.
Where is Steven Kassels located?
Steven Kassels practices at 125 N Elm St, Westfield, MA 01085. The listed phone number is (413) 568-6600.
What is Steven Kassels's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
When was this NPI record last updated?
The NPPES record for Steven Kassels was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.