William Alan Anderson, FNP-C
Nurse Practitioner · Oshkosh, WI
William Alan Anderson, FNP-C is a nurse practitioner with a practice address in Oshkosh, Wisconsin, and NPI 1740913904, issued on Jul 6, 2022. Check the license (Wisconsin 13049-033, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Alan Anderson
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 13049-033 WI
13049-33 WI
193744-30 WI
Self-reported in NPPES; status is on the state search - Practice location
- 855 N Westhaven Dr, Oshkosh, WI 54904
- Phone
- (920) 456-7000
- Enumerated
- Jul 6, 2022
- Record last updated
- Jul 9, 2026
- Medicaid ID
- 100211383 WI
- Medicare enrollment
- Enrolled (PECOS I20220930000923); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 855 N Westhaven Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rami Abumasmah, MDHematology & Oncology Physician1972779551
- Abdulmajid AdamHospitalist Physician1528362258
- Awais Ahmed, MDGastroenterology Physician1316213481
- Kate Alexander, PA-CPhysician Assistant1700466414
- Hussein Alramini, M.D.Hospitalist Physician1497106512
- Ammar Alzoubi, MDInternal Medicine Physician1598773152
Verify William Alan Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 13049-033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average nurse practitioner in 2024
3,221 Medicare Part D claims for 163 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 66 claims were for opioids.
Most prescribed
- Levothyroxine Sodium113 claims
- Omeprazole109 claims
- Gabapentin98 claims
- Furosemide89 claims
- Amlodipine Besylate84 claims
- Atorvastatin Calcium84 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
- Aurora Medical Group, Inc.Oshkosh, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
92 nurse practitioner records list a practice address in Oshkosh
They are 92 of the 1,527 NPPES records with a practice address in Oshkosh, and 3,995 nurse practitioner records in Wisconsin.
All 92 in Oshkosh → All 3,995 in Wisconsin → Every provider in Oshkosh →
Other nurse practitioner records in Wisconsin
- Caroline Aaberg, APNPMadison, WI1881384394
- Joyce Abbott, APNPOshkosh, WI1003824665
- Mohamed Abdelazim, APNPAppleton, WI1760266696
- Jacklyn Abel, AGACNP-BCMauston, WI1104631506
- Henrietta Abili, APNPGermantown, WI1174859524
- Jade Abts, NPGreen Bay, WI1992293708
- Karalyn Adam, DNP, RNMarshfield, WI1780933051
- Carol Adamczyk, MSNWauwatosa, WI1457502395
- Amanda Adams, NPMadison, WI1023366598
- Bernadette Adams, FNPWestby, WI1427047620
Common questions
What is William Alan Anderson, FNP-C's NPI number?
William Alan Anderson, FNP-C's National Provider Identifier (NPI) is 1740913904, issued on Jul 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is William Alan Anderson, FNP-C located?
The NPPES record lists a practice address at 855 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 456-7000. Providers update this record themselves, so call before visiting.
How can I verify William Alan Anderson, FNP-C's license?
NPPES lists Wisconsin license number 13049-033, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does William Alan Anderson, FNP-C prescribe under Medicare Part D?
In 2024, William Alan Anderson, FNP-C had 3,221 Medicare Part D claims for 163 beneficiaries; 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.