Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Malcolm Richard Greene, O.D.
Optometrist in Watertown, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649264318
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Registry record
Entity type Individual (Type 1)
Name Dr. Malcolm Richard Greene
Credential O.D.
Sex Male
Practice address 31 Spring St, Watertown, MA, 02472
Phone (617) 924-3343
Fax (617) 926-6634
Enumeration date Sep 8, 2005
Last updated in NPPES Apr 13, 2009
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 |
|---|---|---|---|
| 0306754 | 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
What is the NPI number for Malcolm Greene?
The National Provider Identifier (NPI) for Malcolm Greene is 1649264318, a Type 1 (individual) record in the CMS NPPES registry.
Where does Malcolm Greene practice?
The practice location on file with NPPES is in Watertown, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-13.