Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Samuel Yancy Jr., MD, MHS

Individual provider Internal Medicine Physician · NPI 1598851974

Dr. William Samuel Yancy Jr., MD, MHS practises Internal Medicine in Durham, North Carolina. Graduated from Brody School of Medicine at East Carolina University in 1995, 31 years ago. Practices with Duke University Health System, Inc, a 1,082-clinician group, accepts Medicare assignment and offers telehealth. Licensed in North Carolina.

Years since qualifying
31
Trained at
Brody School of Medicine at East Carolina University
Licensed in
NC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4220 N Roxboro St 2nd Fl
Durham, NC 27704-1826 Not confirmed with CMS for 12 years — call before visiting
Phone: (919) 684-8111
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2000-01339 (NC)

Record details

NPI number1598851974
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MHS
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESMay 14, 2014

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolBRODY SCHOOL OF MEDICINE AT EAST CAROLINA UNIVERSITY
Graduated 1995 (31 years in practice)
Group practice Duke University Health System, Inc — 1082 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients134
Services billed 837 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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.

Consulting Fee $2,790 2 payments

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 Duke University Health System, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1082 clinicians in the practice; 12 are shown here.

Other providers in Durham