Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mason Street Industries LLC

Organization Neurology Physician · NPI 1215805536

Mason Street Industries LLC is a Neurology Physician in Greenwich, Connecticut. Registered with an NPI since 2025.

In the registry since
2025
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

115 Mason St Ste 1
Greenwich, CT 06830-6630
Phone: (718) 514-0224
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X

Record details

NPI number1215805536
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official David Hahn — President · (718) 514-0224
NPI enumeratedOctober 28, 2025
Last updated in NPPESOctober 28, 2025
Certification dateOctober 28, 2025
Mailing address115 Mason St Ste 1, Greenwich, CT 06830-6630

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