Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Andrew Istok, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1548682180

Andrew Istok, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Phoenix, Arizona. Qualified in 2013, 13 years ago. Practices with Banner Hospital Based Physicians Arizona LLC, a 641-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
13
Licensed in
AZ
In the registry since
2014
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

2601 E Roosevelt St
Phoenix, AZ 85008-4973 Not confirmed with CMS for 12 years — call before visiting
Phone: (602) 344-5011
Fax: (602) 344-0779
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence MSLRN50714 (AZ)

Record details

NPI number1548682180
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJanuary 16, 2014
Last updated in NPPESJanuary 16, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Banner Hospital Based Physicians Arizona Llc — 641 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients95
Services billed 99 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Banner Hospital Based Physicians Arizona LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 641 clinicians in the practice; 12 are shown here.

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