Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Stewart J Ginsberg, OD
Optometrist in Natick, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679595730
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Registry record
Entity type Individual (Type 1)
Name Dr. Stewart J Ginsberg
Credential OD
Sex Male
Practice address Natick Eye Associates,PC, 1364 Worcester Road, Natick, MA, 01760
Phone (508) 655-8127
Fax (508) 652-0819
Enumeration date Jul 24, 2006
Last updated in NPPES Jul 8, 2007
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 |
|---|---|---|---|
| 0005897485 | Other | MA | AETNA |
| 150384 | Other | MA | HARVARD PILGRIM |
| 220316 | Other | MA | UNITED HEALTHCARE |
| 9148944 | Other | MA | CIGNA |
| W16109 | Other | MA | BLUECROSS BLUESHIELD |
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 Stewart Ginsberg's NPI record?
Cross-check NPI 1679595730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1679595730 active?
Yes, as of the latest NPPES snapshot, NPI 1679595730 is active (record last updated 2007-07-08).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.