NPPES file of Aug 9, 2026

Andrew Istok, CRNA

Certified Registered Nurse Anesthetist · Phoenix, AZ

Andrew Istok, CRNA is a certified registered nurse anesthetist with a practice address in Phoenix, Arizona, and NPI 1548682180, issued on Jan 16, 2014. Check the license (Arizona MSLRN50714, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1548682180
Name
Andrew Istok
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
MSLRN50714 AZ
Self-reported in NPPES; status is on the state search
Practice location
2601 E Roosevelt St, Phoenix, AZ 85008
Phone
(602) 344-5011
Enumerated
Jan 16, 2014
Record last updated
Jan 16, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(602) 344-0779
Medicare enrollment
Enrolled (PECOS I20140410000250); 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 certified registered nurse anesthetist records → All 1,100 in Arizona → Look up another NPI →

Also registered at 2601 E Roosevelt St

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

  1. Amjed Abdel Al, MDStudent in an Organized Health Care Education/Training Program1043151400
  2. Shelley Abdel-Sayed, M.D.Anesthesiology Physician1609079490
  3. Baha Abdelrahim, DOStudent in an Organized Health Care Education/Training Program1205531795
  4. Yasir Abdulqader, MDHospitalist Physician1184955395
  5. Iman Aboalam, PHARMDPharmacist1477422384
  6. Norberto Adame, MDEmergency Medicine Physician1144276213

Verify Andrew Istok in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license MSLRN50714    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
Find the Arizona 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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Bills Medicare through 2 group practices

  1. Anesthesia Partners OF Arizona LLCPhoenix, AZ
  2. Banner Hospital Based Physicians Arizona LLCMesa, AZ

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

Andrew Istok among 1,100 certified registered nurse anesthetist records in Arizona

Andrew Istok, CRNA is one of 1,100 certified registered nurse anesthetist records with a practice address in Arizona. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 44% of them.

  • NPI issued2014 · 44% of these records are older, 53% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2013 · median 2017 among the 891 with a school on file
  • Record last updated2014 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in Arizona

There are 1,100 certified registered nurse anesthetist records in Arizona.

All 1,100 in Arizona → Every provider in Phoenix → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Joseph Bailon, CRNAPhoenix, AZ 850081366426173
  2. Paul Bennett, CRNAPhoenix, AZ 850081932110723
  3. David Brewer, CRNAPhoenix, AZ 850081992723050
  4. Christopher Carr, CRNAPhoenix, AZ 850081720084650
  5. Scott Carr, CRNAPhoenix, AZ 850081871515270
  6. Joan Collignon, CRNAPhoenix, AZ 850081760431001
  7. Theresa Crawley, CRNAPhoenix, AZ 850081871590463
  8. Daniela Dipomazio, CRNAPhoenix, AZ 850081487668331

Common questions

What is Andrew Istok, CRNA's NPI number?

Andrew Istok, CRNA's National Provider Identifier (NPI) is 1548682180, issued on Jan 16, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Istok, CRNA located?

The NPPES record lists a practice address at 2601 E Roosevelt St, Phoenix, AZ, 85008. Phone: (602) 344-5011. Providers update this record themselves, so call before visiting.

How can I verify Andrew Istok, CRNA's license?

NPPES lists Arizona license number MSLRN50714, as entered by the provider. 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. 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.