William Stanley Vachon, M.D.
Emergency Medicine Physician · Newark, DE
William Stanley Vachon, M.D. is an emergency medicine physician with a practice address in Newark, Delaware, and NPI 1447479092, issued on Apr 24, 2007. Check the license (Delaware C7-0003186, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- William Stanley Vachon
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C7-0003186 DE
44307 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4755 Ogletown RD, Newark, DE 19718
- Phone
- (302) 733-3904
- Enumerated
- Apr 24, 2007
- Record last updated
- May 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20110607000240); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 243 in Delaware → Look up another NPI →
Also registered at 4755 Ogletown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine GoodwinStudent in an Organized Health Care Education/Training Program1982346946
Verify William Stanley Vachon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C7-0003186Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average emergency medicine physician in 2024
205 Medicare Part D claims for 141 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 45 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen37 claims
- Cyclobenzaprine Hcl23 claims
- Prednisone22 claims
- Ondansetron Hcl19 claims
- Sucralfate11 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.
The MIPS final score for 2023 (Medicare payment program): 53.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $166.55
2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Owensboro Health Medical Group IncOwensboro, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Stanley Vachon among 243 emergency medicine physician records in Delaware
William Stanley Vachon, M.D. is one of 243 emergency medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2005 · median 2010 among the 123 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
142 emergency medicine physician records list a practice address in Newark
They are 142 of the 4,662 NPPES records with a practice address in Newark, and 243 emergency medicine physician records in Delaware.
All 243 in Delaware → Every provider in Newark → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Paul Anderson, MDNewark, DE 197181003894817
- Brian Burgess, MDNewark, DE 197181013995828
- Leo Burns, MDNewark, DE 197181083692792
- Cory Carpenter, MDNewark, DE 197181285612093
- James Carroll, MDNewark, DE 197181295713006
- Angelo Grillo, MDNewark, DE 197181891773602
- Anita Hodson, MDNewark, DE 197181194703900
- Steven Kushner, MDNewark, DE 197181306824107
Common questions
What is William Stanley Vachon, M.D.'s NPI number?
William Stanley Vachon, M.D.'s National Provider Identifier (NPI) is 1447479092, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Stanley Vachon, M.D. located?
The NPPES record lists a practice address at 4755 Ogletown RD, Newark, DE, 19718. Phone: (302) 733-3904. Providers update this record themselves, so call before visiting.
How can I verify William Stanley Vachon, M.D.'s license?
NPPES lists Delaware license number C7-0003186, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Stanley Vachon, M.D. prescribe under Medicare Part D?
In 2024, William Stanley Vachon, M.D. had 205 Medicare Part D claims for 141 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is William Stanley Vachon, M.D.'s MIPS final score?
The 2023 MIPS final score is 53.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.