Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joseph E O'Brien, D.M.D.
Dentist in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881758118
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Registry record
Entity type Individual (Type 1)
Name Dr. Joseph E O'Brien
Credential D.M.D.
Sex Male
Practice address 1400 Centre St, Suite 201, Newton, MA, 02459
Phone (617) 965-2440
Fax (617) 965-2423
Enumeration date Dec 21, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
How do I verify Joseph O'Brien's NPI record?
Cross-check NPI 1881758118 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1881758118 active?
Yes, as of the latest NPPES snapshot, NPI 1881758118 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Joanie Piken Clinical Social Worker · Newton Centre, MA NPI 1477538650 Sylvia Kaneko Clinical Social Worker · Newton Centre, MA NPI 1003891284 Steven Levitt General Practice Dentistry · Newton, MA NPI 1952373706 Lynn Baden Dermatology Physician · Newton, MA NPI 1417929977 Rowe Physical Therapy and Associates Occupational Therapist · Newton Centre, MA NPI 1487623351 Elissa Rottenberg Pediatrics Physician · Newton Centre, MA NPI 1356310981 Roger Spingarn Pediatric Adolescent Medicine Physician · Newton Centre, MA NPI 1871562041 Jonathan Benjamin Pediatrics Physician · Newton Centre, MA NPI 1699734202
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.