Chad B. Dunn, MD
Emergency Medicine Physician · Winchester, VA
Chad B. Dunn, MD is an emergency medicine physician with a practice address in Winchester, Virginia, and NPI 1164600961, issued on Feb 4, 2008. Check the license (Virginia 0101243589, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Chad B. Dunn
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 0101243589 VA
0116017555 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1840 Amherst St, Winchester, VA 22601
- Phone
- (540) 536-8708
- Enumerated
- Feb 4, 2008
- Record last updated
- Feb 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20080616000654); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,715 in Virginia → Look up another NPI →
Also registered at 1840 Amherst St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chad B. Dunn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101243589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average emergency medicine physician in 2024
381 Medicare Part D claims for 233 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 83 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen60 claims
- Cephalexin33 claims
- Doxycycline Monohydrate22 claims
- Ondansetron Odt21 claims
- Oxycodone-Acetaminophen18 claims
- Prednisone17 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.
2 hospitals and group practices
- Winchester Medical CenterWinchester, VA · Acute Care Hospitals4 of 5 stars
- Warren Memorial Hospital, Inc.Front Royal, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Chad B. Dunn among 1,715 emergency medicine physician records in Virginia
Chad B. Dunn, MD is one of 1,715 emergency medicine physician records with a practice address in Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2005 · median 2011 among the 956 with a school on file
- Record last updated2023 · 55% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 emergency medicine physician records list a practice address in Winchester
They are 37 of the 2,762 NPPES records with a practice address in Winchester, and 1,715 emergency medicine physician records in Virginia.
All 1,715 in Virginia → Every provider in Winchester → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Douglas Benkelman, MDWinchester, VA 226011518926567
- Jillian Call, MDWinchester, VA 226011013976083
- John Giangola, MDWinchester, VA 226011679532394
- Michael Hendren, MDWinchester, VA 226011346209285
- Scott King, MDWinchester, VA 226011194727016
- William Leskovec, MDWinchester, VA 226011477512341
- Geoffrey Martin, MDWinchester, VA 226011962406470
- John Potter, MDWinchester, VA 226011437118007
Common questions
What is Chad B. Dunn, MD's NPI number?
Chad B. Dunn, MD's National Provider Identifier (NPI) is 1164600961, issued on Feb 4, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Chad B. Dunn, MD located?
The NPPES record lists a practice address at 1840 Amherst St, Winchester, VA, 22601. Phone: (540) 536-8708. Providers update this record themselves, so call before visiting.
How can I verify Chad B. Dunn, MD's license?
NPPES lists Virginia license number 0101243589, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chad B. Dunn, MD prescribe under Medicare Part D?
In 2024, Chad B. Dunn, MD had 381 Medicare Part D claims for 233 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.