Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Barry Michael Greenfield, DDS
Periodontics in Port Washington, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699783654
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Registry record
Entity type Individual (Type 1)
Name Dr. Barry Michael Greenfield
Credential DDS
Sex Male
Practice address 14 Maple Street, Suite 104, Port Washington, NY, 11050
Phone (516) 767-1880
Fax (516) 767-7392
Enumeration date Aug 4, 2006
Last updated in NPPES Feb 23, 2012
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 Barry Greenfield?
The National Provider Identifier (NPI) for Barry Greenfield is 1699783654, a Type 1 (individual) record in the CMS NPPES registry.
Where does Barry Greenfield practice?
The practice location on file with NPPES is in Port Washington, 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 2012-02-23.