Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Teresa Kos, O.D.
Optometrist in Easthampton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770674046
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Registry record
Entity type Individual (Type 1)
Name Dr. Teresa Kos
Credential O.D.
Sex Female
Practice address 250 Northampton Street, Easthampton, MA, 01027
Phone (413) 527-9284
Fax (413) 527-8181
Enumeration date Sep 28, 2006
Last updated in NPPES Oct 1, 2013
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 |
|---|---|---|---|
| 042797983 | Other | - | VSP |
| 103098 | Other | - | TUFTS |
| 13664 | Other | - | HNE |
| W15608 | Other | - | BCBS |
| 0350664 | Medicaid | MA | - |
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 Teresa Kos's NPI record?
Cross-check NPI 1770674046 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770674046 active?
Yes, as of the latest NPPES snapshot, NPI 1770674046 is active (record last updated 2013-10-01).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-01.