William K. Hoser, PA-C
Medical Physician Assistant · Windsor, VT
William K. Hoser, PA-C is a medical physician assistant with a practice address in Windsor, Vermont, and NPI 1225023815, issued on Sep 20, 2005. Check the license (Vermont 055-0030687, as entered in NPPES) with the Vermont board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William K. Hoser
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 055-0030687 VT
Self-reported in NPPES; status is on the state search - Practice location
- 289 County RD, Windsor, VT 05089
- Phone
- (802) 674-7220
- Enumerated
- Sep 20, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (802) 674-7006
- Medicaid ID
- 2002302 VT
- Medicare enrollment
- Enrolled (PECOS I20170920001458); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 98 in Vermont → Look up another NPI →
Also registered at 289 County RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William K. Hoser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Vermont board licenses this profession
Search for license 055-0030687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average medical physician assistant in 2024
166 Medicare Part D claims for 112 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin21 claims
- Azithromycin15 claims
- Albuterol Sulfate Hfa14 claims
- Prednisone14 claims
- Amoxicillin-Clavulanate Potass12 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
- Springfield Medical Care Systems IncLudlow, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William K. Hoser among 98 medical physician assistant records in Vermont
William K. Hoser, PA-C is one of 98 medical physician assistant records with a practice address in Vermont. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1999 · median 2006 among the 54 with a school on file
- Record last updated2007 · 68% 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 Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 medical physician assistant records list a practice address in Windsor
They are 7 of the 120 NPPES records with a practice address in Windsor, and 98 medical physician assistant records in Vermont.
All 98 in Vermont → Every provider in Windsor → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- John Bond, PA-CWindsor, VT 050891043206550
- George Brothers, PA-CWindsor, VT 050891285629204
- H Katchen, PA-CWindsor, VT 050891902891534
- Patrick Lyons, PAWindsor, VT 050891578823753
- Rafael Rondeau, PA-CWindsor, VT 050891912558321
- Cary Stratford, PA-CWindsor, VT 050891508852096
- Carissa BrooksWilder, VT 050881336730498
- Judi Friedman, PA-CWoodstock, VT 050911295808061
Common questions
What is William K. Hoser, PA-C's NPI number?
William K. Hoser, PA-C's National Provider Identifier (NPI) is 1225023815, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William K. Hoser, PA-C located?
The NPPES record lists a practice address at 289 County RD, Windsor, VT, 05089. Phone: (802) 674-7220. Providers update this record themselves, so call before visiting.
How can I verify William K. Hoser, PA-C's license?
NPPES lists Vermont license number 055-0030687, as entered by the provider. Search the Vermont board that licenses this profession; the NPPES record confirms identity only.
How much does William K. Hoser, PA-C prescribe under Medicare Part D?
In 2024, William K. Hoser, PA-C had 166 Medicare Part D claims for 112 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.