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

Individual provider Internal Medicine Physician · NPI 1013916808

Dr. Ian D Kleinhen, MD is an Internal Medicine in Windsor, Connecticut. Graduated from Georgetown University School of Medicine in 1995, 31 years ago. Practices with Ptsma Inc, a 177-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
31
Trained at
Georgetown University School of Medicine
Licensed in
CT
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

74 Mack St
Windsor, CT 06095-2759
Phone: (860) 298-8830
Fax: (860) 298-9929
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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 · Licence 036853 (CT)

Record details

NPI number1013916808
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2005
Last updated in NPPESFebruary 27, 2020
Certification dateFebruary 27, 2020
Mailing address74 Mack St, Ste 1, Windsor, CT 06095-2759

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Ptsma Inc — 177 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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