Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Kostantinos Christos Papathanasiou

Individual provider Family Medicine Physician · NPI 1639751407

Kostantinos Christos Papathanasiou is a Family Medicine Physician in Springfield, Massachusetts. Licensed in Connecticut and Massachusetts. Registered with an NPI since 2021.

Licensed in
CT, MA
In the registry since
2021
Specialties on file
2
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Practice location Address checks out

819 Worcester St
Springfield, MA 01151-1045
Phone: (337) 991-9276
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 1014794 (MA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 77572 (CT)

Record details

NPI number1639751407
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 22, 2021
Last updated in NPPESFebruary 20, 2025
Certification dateFebruary 19, 2025

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients43
Services billed 58 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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