NPPES file of Aug 9, 2026

Irene Tsirozidou, M.D.

Internal Medicine Physician · Winchester, MA

Irene Tsirozidou, M.D. is an internal medicine physician with a practice address in Winchester, Massachusetts, and NPI 1912964610, issued on Apr 27, 2006. Check the license (Massachusetts 155226, 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
1912964610
Name
Irene Tsirozidou
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
155226 MA
43459 MN
Self-reported in NPPES; status is on the state search
Practice location
41 Highland Ave, Winchester, MA 01890
Phone
(781) 756-7095
Enumerated
Apr 27, 2006
Record last updated
Jul 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
110077226/A MA
Medicare enrollment
Enrolled (PECOS I20070825000007); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →

Also registered at 41 Highland Ave

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

  1. Chirin Al Dalati, M.D.Internal Medicine Physician1003166885
  2. Jessica Albrinck, BSN, MPH, FNP-BCFamily Nurse Practitioner1164875639
  3. Donald Amiralian, M.D.Emergency Medicine Physician1962447078
  4. May Azar, M.D.Cytopathology Physician1114916731
  5. Karen Beaton, MDAnesthesiology Physician1780652065
  6. Eve BishopAnesthesiology Physician1619482288

Verify Irene Tsirozidou 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 155226    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

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54% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,463 Medicare Part D claims for 283 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Irene Tsirozidou1,463
  2. Specialty average3,176

Most prescribed

  1. Pantoprazole Sodium71 claims
  2. Atorvastatin Calcium67 claims
  3. Cefpodoxime Proxetil51 claims
  4. Prednisone50 claims
  5. Eliquis44 claims
  6. Quetiapine Fumarate42 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.

Industry payments in 2024: $134.13

2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Irene Tsirozidou$134.13
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Lowell General Inpatient Specialists PLLCLowell, MA
  2. Vantage Healthcare LLCCanton, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Irene Tsirozidou among 6,825 internal medicine physician records in Massachusetts

Irene Tsirozidou, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1990 · median 2004 among the 4,103 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 internal medicine physician records list a practice address in Winchester

They are 19 of the 439 NPPES records with a practice address in Winchester, and 6,825 internal medicine physician records in Massachusetts.

All 6,825 in Massachusetts → Every provider in Winchester → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mohammed Akbarian, M.D.Winchester, MA 018901649251471
  2. Laura Carman, MDWinchester, MA 018901831264027
  3. Jyotirmay Chanda, MDWinchester, MA 018901396729224
  4. John Copanos, M.D.Winchester, MA 018901033282272
  5. Claire Jacobus, M.D.Winchester, MA 018901932272176
  6. Mohammed Jaleel, M.D.Winchester, MA 018901568425346
  7. Brenda Johnson, M.D.Winchester, MA 018901740229749
  8. William Kenyon, M.D.Winchester, MA 018901578527230

Common questions

What is Irene Tsirozidou, M.D.'s NPI number?

Irene Tsirozidou, M.D.'s National Provider Identifier (NPI) is 1912964610, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Irene Tsirozidou, M.D. located?

The NPPES record lists a practice address at 41 Highland Ave, Winchester, MA, 01890. Phone: (781) 756-7095. Providers update this record themselves, so call before visiting.

How can I verify Irene Tsirozidou, M.D.'s license?

NPPES lists Massachusetts license number 155226, 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 Irene Tsirozidou, M.D. prescribe under Medicare Part D?

In 2024, Irene Tsirozidou, M.D. had 1,463 Medicare Part D claims for 283 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.