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

Ian D Kleinhen MD PLLC

Organization Internal Medicine Physician · NPI 1669939369

Ian D Kleinhen MD PLLC is an Internal Medicine Physician in Windsor, Connecticut. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

74 Mack St Ste 1
Windsor, CT 06095-2759
Phone: (860) 580-7071
Fax: (860) 298-0279
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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 number1669939369
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Ian Kleinhen — Physician / Owner · (860) 580-7071
NPI enumeratedFebruary 28, 2019
Last updated in NPPESMarch 12, 2019
Mailing address74 Mack St Ste 1, Windsor, CT 06095-2759

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