NPPES file of Aug 9, 2026

William Joseph Wilson, PA-C

Medical Physician Assistant · Apple Valley, CA

William Joseph Wilson, PA-C is a medical physician assistant with a practice address in Apple Valley, California, and NPI 1265469712, issued on Jun 27, 2006. Check the license with the California 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
1265469712
Name
William Joseph Wilson
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
Practice location
18522 Highway 18, Apple Valley, CA 92307
Phone
(760) 242-7707
Enumerated
Jun 27, 2006
Record last updated
Aug 7, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(760) 242-1133
Medicare enrollment
Enrolled (PECOS I20210105001106); 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 Joseph Wilson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California 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
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54% fewer Medicare Part D claims than the average medical physician assistant in 2024

533 Medicare Part D claims for 348 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. William Wilson533
  2. Specialty average1,148

Most prescribed

  1. Amoxicillin-Clavulanate Potass62 claims
  2. Azithromycin52 claims
  3. Cephalexin45 claims
  4. Albuterol Sulfate Hfa33 claims
  5. Nitrofurantoin Mono-Macro29 claims
  6. Ciprofloxacin Hcl27 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. Providence Medical FoundationSanta Rosa, CA

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

William Joseph Wilson among 3,376 medical physician assistant records in California

William Joseph Wilson, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 80% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2014 · median 2012 among the 1,347 with a school on file
  • Record last updated2015 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 medical physician assistant records list a practice address in Apple Valley

They are 16 of the 1,518 NPPES records with a practice address in Apple Valley, and 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Nuha Alomari, PA-CApple Valley, CA 923071497582209
  2. Tait Christensen, PA-CApple Valley, CA 923071861775611
  3. Michael Erskine, PA-CApple Valley, CA 923071053369009
  4. Elias Frangos, PA-CApple Valley, CA 923071235697376
  5. Isabel GalvezApple Valley, CA 923071932945847
  6. Gabrielle GonzalezApple Valley, CA 923071942601430
  7. Bruce Jackson, P.A.Apple Valley, CA 923071124072087
  8. Marshall Koon, PA-CApple Valley, CA 923071982939302

Common questions

What is William Joseph Wilson, PA-C's NPI number?

William Joseph Wilson, PA-C's National Provider Identifier (NPI) is 1265469712, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Joseph Wilson, PA-C located?

The NPPES record lists a practice address at 18522 Highway 18, Apple Valley, CA, 92307. Phone: (760) 242-7707. Providers update this record themselves, so call before visiting.

How can I verify William Joseph Wilson, PA-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does William Joseph Wilson, PA-C prescribe under Medicare Part D?

In 2024, William Joseph Wilson, PA-C had 533 Medicare Part D claims for 348 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.