DR. IRENE TSIROZIDOU (M.D.) – Internal Medicine Physician, NPI 1912964610

DR. IRENE TSIROZIDOU (M.D.) is a healthcare provider. based in Worcester, Massachusetts. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 43459 (MN). The NPI Number for DR. IRENE TSIROZIDOU (M.D.) is 1912964610

Main info

Female
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. IRENE TSIROZIDOU (M.D.)
NPI
1912964610
Phone
(508) 334-8515
Address
119 Belmont St
Enumeration Date
27 April 2006
Last Update Date
20 July 2021

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7818672050
Graduation Year
1990 (36 years ago)
PAC ID
2466544119
Group Practice PAC ID
8224361191
Professional Enrollment ID
I20070825000007
Address ID
MA020212852CA45XXXRDXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness75
Years active:20State licenses:2Digital endpointsOther names

7,722 INTERNAL MEDICINE in MA

Provider Addresses for DR. IRENE TSIROZIDOU (M.D.)

  • 119 Belmont St

    Worcester, MA 016052903

    Phone: (508) 334-8515

    Fax: (508) 334-6490

    Type: Location

  • 55 Lake Ave N

    Worcester, MA 016550002

    Phone: (774) 441-6767

    Fax: (774) 441-6787

    Type: Location

  • 157 Union St

    Marlborough, MA 017521228

    Phone: (508) 486-5678

    Fax: (508) 486-5677

    Type: Location

  • 85 Herrick St

    Beverly, MA 019151790

    Phone: (413) 543-6820

    Fax: (413) 543-7962

    Type: Location

  • 795;809;811;815;819, Worcester Street, Fiberloid, Springfield, Hampden County, Massachusetts, 01151, United States

    SUITE 3

    SPRINGFIELD, MA 011511045

    Phone: (413) 543-6820

    Fax: (413) 543-7962

    Type: Mailing

  • Winchester Hospital, 41, Highland Avenue, Symmes Corner, Winchester, Middlesex County, Massachusetts, 01890, United States

    WINCHESTER, MA 018901446

    Phone: (781) 756-7095

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $134.

Total Amount is formed as General ($134) + Research ($0) + Ownership ($0) = $134.

Last reported payment date: 2024-09-26 • Largest payer in this snapshot: Amgen Inc. ($105).

Total Amount

$134

General + Research + Ownership

Payments

2

Total payment records

General Amount

$134

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-09-26

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2007-08-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070825000007IInternal MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes929371$0
99239Hospital discharge day management, more than 30 minutes239231$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes214206$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes9868$0
99497Advance care planning, first 30 minutes6659$0
View full utilization report →

Insurance plans in this area (ZIP 01605)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8224361191View full group profile
NameSpecialtyState
Internal MedicineCT
-MA
Internal Medicine, NephrologyMA
Internal Medicine, Family PracticeNH
Internal MedicineMA
Internal MedicineFL
-MA
Physician AssistantNM
Nurse PractitionerMA
Internal MedicineMA

Reviews

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Frequently asked questions

What NPI should I save for DR. IRENE TSIROZIDOU (M.D.)?
Save NPI 1912964610 if you need a stable reference for DR. IRENE TSIROZIDOU (M.D.).
Is DR. IRENE TSIROZIDOU (M.D.)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
Can you summarize DR. IRENE TSIROZIDOU (M.D.)'s specialty in plain language?
Clinically, the directory lists DR. IRENE TSIROZIDOU (M.D.) with Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What location metadata exists for DR. IRENE TSIROZIDOU (M.D.)?
The page summarizes Worcester, Massachusetts for DR. IRENE TSIROZIDOU (M.D.); expand the address list for detail.
How can I contact DR. IRENE TSIROZIDOU (M.D.)?
Phone or fax may appear on the official NPI record when supplied — verify before relying on them.

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