Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Daniel G Sullivan, OD
Optometrist in Hudson, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811057441
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Registry record
Entity type Individual (Type 1)
Name Dr. Daniel G Sullivan
Credential OD
Sex Male
Practice address 34 Pope St, Hudson, MA, 01749
Phone (978) 562-7976
Enumeration date Dec 12, 2006
Last updated in NPPES Mar 10, 2015
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| AA91010 | Other | - | HARVARD PILGRIM |
| W16493 | Other | - | BLUECROSS BLUESHIELD |
| 0712329 | Medicaid | MA | - |
| 7930927 | Other | - | AETNA |
| 261552128 | Other | - | VSP |
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
Where does Daniel Sullivan practice?
The practice location on file with NPPES is in Hudson, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Daniel Sullivan?
The National Provider Identifier (NPI) for Daniel Sullivan is 1811057441, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-10.