NPPES file of Aug 9, 2026

William Russell McNair, FNP

Family Nurse Practitioner · San Luis, AZ

William Russell McNair, FNP is a family nurse practitioner with a practice address in San Luis, Arizona, and NPI 1780913236, issued on Dec 11, 2009. Check the license (Arizona RN160158, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780913236
Name
William Russell McNair
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN160158 AZ
Self-reported in NPPES; status is on the state search
Practice location
1896 E. Babbit LN, San Luis, AZ 85349
Phone
(928) 627-9222
Enumerated
Dec 11, 2009
Record last updated
Aug 13, 2024
Fax
(928) 627-8315
Medicaid ID
503006 AZ
Medicare enrollment
Enrolled (PECOS I20100512001093); 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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Verify William Russell McNair 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 RN160158
    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

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2.7 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,517 Medicare Part D claims for 294 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. William McNair3,517
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium290 claims
  2. Lisinopril248 claims
  3. Metformin Hcl229 claims
  4. Amlodipine Besylate141 claims
  5. Gabapentin141 claims
  6. Levothyroxine Sodium133 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. San Luis Walk-IN Clinic IncSan Luis, AZ

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

William Russell McNair among 5,933 family nurse practitioner records in Arizona

William Russell McNair, FNP is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 14% of them.

  • NPI issued2009 · 14% of these records are older, 84% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2002 · median 2019 among the 3,510 with a school on file
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family nurse practitioner records list a practice address in San Luis

They are 20 of the 133 NPPES records with a practice address in San Luis, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Steven Covington, FNPSan Luis, AZ 853491851413231
  2. Tania Gonzalez, FNPSan Luis, AZ 853491053123802
  3. Gregory Larson, FNP-BCSan Luis, AZ 853491578536892
  4. David Leon, FNP-CSan Luis, AZ 853491922968676
  5. Leah McNair, NPSan Luis, AZ 853491104128255
  6. Rodolfo Valenzuela, NPSan Luis, AZ 853491740367374
  7. Miriam BeltranSomerton, AZ 853501598572232
  8. Alberto Cabrera, FNP-BCSomerton, AZ 853501225894934

Common questions

What is William Russell McNair, FNP's NPI number?

William Russell McNair, FNP's National Provider Identifier (NPI) is 1780913236, issued on Dec 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is William Russell McNair, FNP located?

The NPPES record lists a practice address at 1896 E. Babbit LN, San Luis, AZ, 85349. Phone: (928) 627-9222. Providers update this record themselves, so call before visiting.

How can I verify William Russell McNair, FNP's license?

NPPES lists Arizona license number RN160158, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does William Russell McNair, FNP prescribe under Medicare Part D?

In 2024, William Russell McNair, FNP had 3,517 Medicare Part D claims for 294 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.