Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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May Yung-Yun Yen, MD

Individual provider Emergency Medicine Physician · NPI 1194981340

May Yung-Yun Yen, MD practises Emergency Medicine in Durham, North Carolina. Graduated from University of Pittsburgh School of Medicine in 2004, 22 years ago. Practices with University of North Carolina at Chapel Hill, a 2,079-clinician group and accepts Medicare assignment. Licensed in Illinois and North Carolina.

Years since qualifying
22
Trained at
University of Pittsburgh School of Medicine
Licensed in
IL, NC
In the registry since
2008
Specialties on file
2
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

2100 Erwin Rd
Durham, NC 27705-3941 Not confirmed with CMS for 13 years — call before visiting
Phone: (919) 684-8411
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 2013-01639 (NC)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 125047466 (IL)

Record details

NPI number1194981340
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 6, 2008
Last updated in NPPESAugust 5, 2013

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice University Of North Carolina At Chapel Hill — 2079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients184
Services billed 191 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Unc Hospitals Hospital · Chapel Hill, NC · listed as UNC Hospital

Colleagues at University of North Carolina at Chapel Hill

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2079 clinicians in the practice; 12 are shown here.

Other providers in Durham