Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert H Mashioff, MD
Urology Physician in Seaford, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043273972
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Registry record
Entity type Individual (Type 1)
Name Robert H Mashioff
Credential MD
Sex Male
Practice address 4100 Duff Pl, Suite A, Seaford, NY, 11783
Phone (516) 520-8080
Fax (516) 520-8877
Enumeration date Apr 11, 2006
Last updated in NPPES Apr 2, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 Robert Mashioff?
The National Provider Identifier (NPI) for Robert Mashioff is 1043273972, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Mashioff practice?
The practice location on file with NPPES is in Seaford, NY. 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 2011-04-02.