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

Ruth Ann Lewis, CRNA, NP

Individual provider Pediatric Nurse Practitioner · NPI 1801922042

Ruth Ann Lewis, CRNA, NP is registered under Certified Registered Nurse Anesthetist (CRNA) in Scottsdale, Arizona. Qualified in 1995, 31 years ago. Practices with Mayo Clinic Arizona, a 1,616-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
31
Licensed in
AZ
In the registry since
2007
Specialties on file
2
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

13400 E Shea Blvd
Scottsdale, AZ 85259-5452
Phone: (480) 301-8000
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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 CRNA0499 (AZ)
Pediatric Nurse Practitioner Taxonomy 363LP0200X · Licence AP2585 (AZ)

Record details

NPI number1801922042
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA , NP
Sole proprietorNo
NPI enumeratedFebruary 24, 2007
Last updated in NPPESJune 1, 2026
Certification dateJune 1, 2026

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Mayo Clinic Arizona — 1616 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients56
Services billed 56 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

  • Mayo Clinic Hospital Hospital · Phoenix, AZ

Colleagues at Mayo Clinic Arizona

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1616 clinicians in the practice; 12 are shown here.

Other providers in Scottsdale