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
- Record last updated
- Oct 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (530) 934-1825
- 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 1,109 among the 54,319 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 practice address in Willows
They are 3 of the 182 NPPES records with a practice address in Willows, and 8,223 nurse practitioner records in California.
All 3 in Willows → All 8,223 in California → Every provider in Willows →
Other nurse practitioner records in California
- Barbara Aaronson, RN/NURSE PRACTITONERLos Angeles, CA1588988182
- Albert Aba, AGNPSan Francisco, CA1578353777
- Martha Ababneh, CNAEl Monte, CA1275118614
- Maria Katrina Abad, AGPCNP-BCSan Carlos, CA1306394952
- 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
- Tara Abbondanza, NPArcadia, CA1730355173
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 1,109. 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.