Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Mark Chester Din Yeung, PT
Physical Therapist in Baldwin, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346274651
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Registry record
Entity type Individual (Type 1)
Name Mr. Mark Chester Din Yeung
Credential PT
Sex Male
Practice address 2270 Grand Ave, Baldwin, NY, 11510
Phone (516) 379-0000
Enumeration date Jul 10, 2006
Last updated in NPPES Nov 17, 2010
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT 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
Where does Mark Chester Yeung practice?
The practice location on file with NPPES is in Baldwin, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Chester Yeung?
The National Provider Identifier (NPI) for Mark Chester Yeung is 1346274651, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-17.