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

M.w.d., Inc

Organization Internal Medicine Physician · NPI 1639201569

M.w.d., Inc is an Internal Medicine Physician in Riverhead, New York. Registered with an NPI since 2007.

In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1190 Old Country Rd
Riverhead, NY 11901-4450
Phone: (631) 727-1818
Fax: (631) 727-7365
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1639201569
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michael Dempsey — Owner · (631) 727-1818
NPI enumeratedMarch 9, 2007
Last updated in NPPESDecember 28, 2011
Mailing address1190 Old Country Rd, Riverhead, NY 11901-4450

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