Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Manny Hye Greitzer, O.D.
Optometrist in Greenwich, CT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356476162
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Registry record
Entity type Individual (Type 1)
Name Manny Hye Greitzer
Credential O.D.
Sex Male
Practice address 18 Greenwich Ave, Greenwich, CT, 06830
Phone (203) 661-2020
Fax (203) 661-3930
Enumeration date Feb 22, 2007
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
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 Manny Greitzer?
The National Provider Identifier (NPI) for Manny Greitzer is 1356476162, a Type 1 (individual) record in the CMS NPPES registry.
Where does Manny Greitzer practice?
The practice location on file with NPPES is in Greenwich, CT. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.