Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joel L. Bass, MD
Pediatrics Physician in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427025444
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Registry record
Entity type Individual (Type 1)
Name Dr. Joel L. Bass
Credential MD
Sex Male
Practice address Newton-Wellesley Hospital, 2014 Washington Street, Newton, MA, 02462
Phone (617) 243-6565
Fax (617) 243-6981
Enumeration date Mar 8, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Joel Bass?
The National Provider Identifier (NPI) for Joel Bass is 1427025444, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joel Bass practice?
The practice location on file with NPPES is in Newton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Paul Satwicz Anesthesiology Physician · Newton, MA NPI 1790722312 Anne Lynch Occupational Health Nurse Practitioner · Newton, MA NPI 1023040664 Susana Wishnia Surgery Physician · Newton, MA NPI 1982610226 Nancy Hurwitz Physician Assistant · Newton, MA NPI 1861403347 Megan Wills Women's Health Nurse Practitioner · Newton, MA NPI 1225414378
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.