William Boyes, FNP-BC
Nurse Practitioner · Willows, CA
William Boyes, FNP-BC is a nurse practitioner with a practice address in Willows, California, and NPI 1972625341, issued on Apr 4, 2007. Check the license (California 603922, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Boyes
- Credential
- FNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 603922 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1133 W Sycamore St, Willows, CA 95988
- Phone
- (530) 934-1800
- Enumerated
- Apr 4, 2007
- Entity
- Type 1 · individual
Also registered at 1133 W Sycamore St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Boyes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 603922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
99% fewer Medicare Part D claims than the average nurse practitioner in 2024
11 Medicare Part D claims, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
3 nurse practitioner records list a Willows practice address
They are 3 of the 182 NPPES records with a Willows practice address, and 7,120 nurse practitioner records in California.
All 3 in Willows → All 7,120 in California → Every provider in Willows →
Other nurse practitioner records in California
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- Albert Aba, AGNPSan Francisco, CA1578353777
- Venice AbabatColton, CA1083240881
- Martha Ababneh, CNAEl Monte, CA1275118614
- Chelsea Abad, CRNP, AGPCNP - BCDuarte, CA1952848137
- Shayda Abadi, NPPalo Alto, CA1316745540
- Jessika Abarca, NPSan Fernando, CA1972263945
- Hangama Abassi, N.P.Walnut Creek, CA1487083655
- Elizabeth Abaunza, NPSan Francisco, CA1962044347
- Honeylynn Abaya, NPMoreno Valley, CA1528799145
Common questions
What is William Boyes, FNP-BC's NPI number?
William Boyes, FNP-BC's National Provider Identifier (NPI) is 1972625341, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Boyes, FNP-BC located?
The NPPES record lists a practice address at 1133 W Sycamore St, Willows, CA, 95988. Phone: (530) 934-1800. Providers update this record themselves, so call before visiting.
How can I verify William Boyes, FNP-BC's license?
NPPES lists California license number 603922, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Boyes, FNP-BC prescribe under Medicare Part D?
In 2024, William Boyes, FNP-BC had 11 Medicare Part D claims; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.