Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
MR. STEVEN J KASSELS, MD
ActiveMR. STEVEN J KASSELS, MD is a Internal Medicine healthcare provider located in WESTFIELD, Massachusetts. NPI 1154458735 is currently active in the NPPES registry. Verify at CMS.
Internal Medicine · WESTFIELD, MA
Registration Details
- NPI Number
- 1154458735
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Feb 28, 2007 (19.473084571387 yrs)
- Last Updated
- Sep 11, 2025
- Licenses
-
77240 (MA)77240 (MA)
Practice Information
- Address
-
125 N ELM STWESTFIELD, MA, 010851643Browse MA providers · Browse ZIP 01085
- Phone
- 4135686600
- Primary Specialty
-
Internal Medicine
207R00000X
- Additional Specialty
- Addiction Medicine (Internal Medicine)
Other Internal Medicine Providers in WESTFIELD, MA
| Name | Credential | NPI |
|---|---|---|
| DR. LAURA GIOIELLA | MD | 1609864933 |
| DR. FREDERICK U TORIO | MD | 1295726966 |
| NAOMI ROSENBERG | MD | 1699756684 |
| DR. ROGER J BENEITONE | MD | 1760452635 |
| DR. DAVID J PIERANGELO | MD | 1861467748 |
| DR. ALEKSANDR D PUGACH | MD | 1184681728 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.