Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sandra Miriam Yelen, O.D.
Optometrist in Leominster, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1740260975
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Registry record
Entity type Individual (Type 1)
Name Dr. Sandra Miriam Yelen
Credential O.D.
Sex Female
Practice address 875 Merriam Ave 127, Leominster, MA, 01453
Phone (978) 537-0202
Fax (978) 537-0303
Enumeration date Jan 23, 2006
Last updated in NPPES Sep 22, 2015
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
Where does Sandra Yelen practice?
The practice location on file with NPPES is in Leominster, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sandra Yelen?
The National Provider Identifier (NPI) for Sandra Yelen is 1740260975, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-22.