NPPES file of Aug 9, 2026

Kostantinos Christos Papathanasiou

Family Medicine Physician · Springfield, MA

Kostantinos Christos Papathanasiou is a family medicine physician with a practice address in Springfield, Massachusetts, and NPI 1639751407, issued on Apr 22, 2021. Check the license (Massachusetts 1014794, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639751407
Name
Kostantinos Christos Papathanasiou
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
1014794 MA
77572 CT
Self-reported in NPPES; status is on the state search
Practice location
819 Worcester St, Springfield, MA 01151
Phone
(337) 991-9276
Enumerated
Apr 22, 2021
Record last updated
Feb 20, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 819 Worcester St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Annemarie BartelsAdult Health Nurse Practitioner1275785958
  2. Antonette Comeau, N.P.Nurse Practitioner1255695912
  3. Bin Hu, MDInternal Medicine Physician1508112103
  4. Vishal Kuchaculla, MDInternal Medicine Physician1386837342
  5. Melrose Lahood, NPFamily Nurse Practitioner1114114758
  6. Kristofferson Lee, M.DHospitalist Physician1053612614

Verify Kostantinos Christos Papathanasiou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 1014794
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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87% fewer Medicare Part D claims than the average family medicine physician in 2024

453 Medicare Part D claims for 96 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Kostantinos Papathanasiou453
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium40 claims
  2. Levothyroxine Sodium23 claims
  3. Albuterol Sulfate Hfa17 claims
  4. Metformin Hcl15 claims
  5. Trulicity15 claims
  6. Tamsulosin Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Kostantinos Christos Papathanasiou among 2,265 family medicine physician records in Massachusetts

Kostantinos Christos Papathanasiou is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 90% of them.

  • NPI issued2021 · 90% of these records are older, 8% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Medicine Physician providers in Massachusetts

There are 2,265 family medicine physician records in Massachusetts.

The 8 family medicine physician records with the nearest ZIP codes

  1. Perry Farb, DOSpringfield, MA 011441114902848
  2. Susan Landry, DOSpringfield, MA 011441134236680
  3. John Alifano, M.D.Springfield, MA 011181013995430
  4. Ira Helfand, M.D.Springfield, MA 011181003867714
  5. Eric Churchill, MD/MPHSpringfield, MA 011091497993117
  6. Cortney Haynes, M.D.Springfield, MA 011091578884805
  7. Patricia Zubini Weiss, DNP, FNP-BCSpringfield, MA 011091841805702
  8. Omar Abduljabar, M.D.Springfield, MA 011071770978843

Common questions

What is Kostantinos Christos Papathanasiou's NPI number?

Kostantinos Christos Papathanasiou's National Provider Identifier (NPI) is 1639751407, issued on Apr 22, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Kostantinos Christos Papathanasiou located?

The NPPES record lists a practice address at 819 Worcester St, Springfield, MA, 01151. Phone: (337) 991-9276. Providers update this record themselves, so call before visiting.

How can I verify Kostantinos Christos Papathanasiou's license?

NPPES lists Massachusetts license number 1014794, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kostantinos Christos Papathanasiou prescribe under Medicare Part D?

In 2024, Kostantinos Christos Papathanasiou had 453 Medicare Part D claims for 96 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.