NPPES file of Aug 9, 2026

Russell K. Walston, CRNA

Certified Registered Nurse Anesthetist · Oro Valley, AZ

Russell K. Walston, CRNA is a certified registered nurse anesthetist with a practice address in Oro Valley, Arizona, and NPI 1235648916, issued on Sep 25, 2017. Check the license 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
1235648916
Name
Russell K. Walston
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
CRNA-01530 NM
8000945-3102 UT
Self-reported in NPPES; status is on the state search
Practice location
1551 E Tangerine RD, Oro Valley, AZ 85755
Phone
(520) 901-3500
Enumerated
Sep 25, 2017
Record last updated
Apr 23, 2025
Medicare enrollment
Enrolled (PECOS I20240216000671); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2017
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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Also registered at 1551 E Tangerine RD

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

  1. Paul Affleck, MDAnesthesiology Physician1902986078
  2. Osei Akoto, OTR/LOccupational Therapist1689193179
  3. Moriah Amaya, RNMedical-Surgical Registered Nurse1437668316
  4. John Arraf, MDAnesthesiology Physician1972276897
  5. Nicholas Barrett, P.A.Physician Assistant1326304239
  6. Taryn Bell, RRTRegistered Respiratory Therapist1326680356

Verify Russell K. Walston 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

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 one group practice

  1. Moab Valley Healthcare, Inc.Moab, UT

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

Russell K. Walston among 1,100 certified registered nurse anesthetist records in Arizona

Russell K. Walston, 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 2017, is newer than 54% of them.

  • NPI issued2017 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2017 · median 2017 among the 891 with a school on file
  • Record last updated2025 · 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).

32 certified registered nurse anesthetist records list a practice address in Oro Valley

They are 32 of the 542 NPPES records with a practice address in Oro Valley, and 1,100 certified registered nurse anesthetist records in Arizona.

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

  1. Manuel Falcon, CRNAOro Valley, AZ 857551154656049
  2. Kimberly Frazier, APRN, CRNAOro Valley, AZ 857551013953678
  3. Michele Idera, CRNAOro Valley, AZ 857551639154537
  4. Elizabeth Klaimy, CRNAOro Valley, AZ 857551114152360
  5. Katherine Knoneborg, CRNAOro Valley, AZ 857551578598025
  6. Angie Littlejohn, CRNAOro Valley, AZ 857551700075520
  7. Mary Lowe, RNOro Valley, AZ 857551689091241
  8. Fritz Mesilien, D.C, CRNAOro Valley, AZ 857551073914511

Common questions

What is Russell K. Walston, CRNA's NPI number?

Russell K. Walston, CRNA's National Provider Identifier (NPI) is 1235648916, issued on Sep 25, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Russell K. Walston, CRNA located?

The NPPES record lists a practice address at 1551 E Tangerine RD, Oro Valley, AZ, 85755. Phone: (520) 901-3500. Providers update this record themselves, so call before visiting.

How can I verify Russell K. Walston, CRNA'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. Medicare files from data.cms.gov. 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.