Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Haffner, MD

Individual provider Family Medicine Physician · NPI 1033853056

William Haffner, MD is registered under Family Practice in Winchester, Virginia. Graduated from University of Arkansas College of Medicine in 2025, 1 year ago. Practices with Winchester Medical Center, a 312-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
1
Trained at
University of Arkansas College of Medicine
Licensed in
VA
In the registry since
2022
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

217 Grocery Ave Ste B
Winchester, VA 22602-8934
Phone: (540) 536-7700
Fax: (540) 536-7701
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1840 Amherst St, Winchester, VA 22601-2808 — (540) 536-8000

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 0101287427 (VA)

Record details

NPI number1033853056
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2022
Last updated in NPPESDecember 3, 2025
Certification dateDecember 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 2025 (1 years in practice)
Group practice Winchester Medical Center — 312 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $18 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Winchester Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 312 clinicians in the practice; 12 are shown here.

Other providers in Winchester