Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Caroline Bertler, OD
Optometrist in Bridgewater, MA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689350985
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Registry record
Entity type Individual (Type 1)
Name Caroline Bertler
Credential OD
Sex Female
Practice address 54 Broad St, Bridgewater, MA, 02324
Phone (508) 697-8001
Fax (508) 827-8002
Enumeration date Jun 22, 2023
Last updated in NPPES Dec 31, 2024
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Is NPI 1689350985 active?
Yes, as of the latest NPPES snapshot, NPI 1689350985 is active (record last updated 2024-12-31).
How do I verify Caroline Bertler's NPI record?
Cross-check NPI 1689350985 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-31.