Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alexandra Ruth Scherk, OD
Optometrist in Great Neck, NY · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831683648
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Registry record
Entity type Individual (Type 1)
Name Dr. Alexandra Ruth Scherk
Credential OD
Sex Female
Practice address 310 E Shore Rd Ste 102, Great Neck, NY, 11023
Phone (516) 466-8989
Fax (516) 466-8962
Enumeration date Jun 15, 2018
Last updated in NPPES Oct 14, 2019
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
What is the NPI number for Alexandra Scherk?
The National Provider Identifier (NPI) for Alexandra Scherk is 1831683648, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alexandra Scherk practice?
The practice location on file with NPPES is in Great Neck, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-14.