NPPES file of Aug 9, 2026

Aleksandra Beata Siwik, RN

Critical Care Medicine Registered Nurse · Tucson, AZ

Aleksandra Beata Siwik, RN is a critical care medicine registered nurse with a practice address in Tucson, Arizona, and NPI 1366226771, issued on Aug 24, 2023. Check the license with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1366226771
Name
Aleksandra Beata Siwik
Credential
RN
Primary taxonomy
Critical Care Medicine Registered Nurse 163WC0200X
License number
95101278 CA
Self-reported in NPPES; status is on the state search
Practice location
1200 East University Blvd, Tucson, AZ 85721
Phone
(520) 621-3237
Enumerated
Aug 24, 2023
Record last updated
Aug 24, 2023
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 1200 East University Blvd

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

  1. Chassidy Daly, RNRegistered Nurse1871378166

Verify Aleksandra Beata Siwik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck 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
Find the Arizona license search

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Aleksandra Beata Siwik among 145 critical care medicine registered nurse records in Arizona

Aleksandra Beata Siwik, RN is one of 145 critical care medicine registered nurse records with a practice address in Arizona. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2023, is newer than 43% of them.

  • NPI issued2023 · 43% of these records are older, 42% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2023 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WC0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine Registered Nurse providers in Arizona

There are 145 critical care medicine registered nurse records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 critical care medicine registered nurse records with the nearest ZIP codes

  1. Manuel Barron, RNTucson, AZ 857211427882646
  2. Angelina CastrilloTucson, AZ 857211942084702
  3. Daniel ChoiTucson, AZ 857211922833870
  4. Jas Gabbidon, RNTucson, AZ 857211316721962
  5. Blake Hartley, RNTucson, AZ 857211568246585
  6. Jeremy Horsley, BSN, RN, CCRN-CSCTucson, AZ 857211174402374
  7. Roya KhodavisiTucson, AZ 857211366228652
  8. Meghann McLaughlinTucson, AZ 857211295615250

Common questions

What is Aleksandra Beata Siwik, RN's NPI number?

Aleksandra Beata Siwik, RN's National Provider Identifier (NPI) is 1366226771, issued on Aug 24, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Aleksandra Beata Siwik, RN located?

The NPPES record lists a practice address at 1200 East University Blvd, Tucson, AZ, 85721. Phone: (520) 621-3237. Providers update this record themselves, so call before visiting.

How can I verify Aleksandra Beata Siwik, RN's license?

Search the Arizona board that licenses this profession; the NPPES record confirms identity 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. 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.