Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel Arthur Bastian, OD

Optometrist in Brockton, MA · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770848384

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Registry record

Entity type Individual (Type 1)

Name Dr. Daniel Arthur Bastian

Credential OD

Sex Male

Practice address 940 Belmont St, Brockton, MA, 02301

Phone (508) 583-4500

Enumeration date Jul 10, 2012

Last updated in NPPES Mar 9, 2016

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OEG002619 (PA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 4921 (MA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Daniel Bastian?

The National Provider Identifier (NPI) for Daniel Bastian is 1770848384, a Type 1 (individual) record in the CMS NPPES registry.

Where does Daniel Bastian practice?

The practice location on file with NPPES is in Brockton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-09.