May Yung-Yun Yen, MD
Emergency Medicine Physician · Durham, NC
May Yung-Yun Yen, MD is an emergency medicine physician with a practice address in Durham, North Carolina, and NPI 1194981340, issued on Aug 6, 2008. Check the license (North Carolina 2013-01639, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- May Yung-Yun Yen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 2013-01639 NC
125047466 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Erwin RD, Durham, NC 27705
- Phone
- (919) 684-8411
- Enumerated
- Aug 6, 2008
- Record last updated
- Aug 5, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130925000214); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 2,094 in North Carolina → Look up another NPI →
Also registered at 2100 Erwin RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify May Yung-Yun Yen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2013-01639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average emergency medicine physician in 2024
35 Medicare Part D claims for 25 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- University OF North Carolina AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
May Yung-Yun Yen among 2,094 emergency medicine physician records in North Carolina
May Yung-Yun Yen, MD is one of 2,094 emergency medicine physician records with a practice address in North Carolina. 81% 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 48% of them.
- NPI issued2008 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2012 among the 1,317 with a school on file
- Record last updated2013 · 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 emergency medicine physician records list a practice address in Durham
They are 144 of the 13,451 NPPES records with a practice address in Durham, and 2,094 emergency medicine physician records in North Carolina.
All 2,094 in North Carolina → Every provider in Durham → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Heatherlee Bailey, MDDurham, NC 277051972546836
- David Brewer, M.D.Durham, NC 277051871522219
- Abhinav Chandra, M.D.Durham, NC 277051881778793
- Francis Conn, MDDurham, NC 277051114904828
- William Low, MDDurham, NC 277051427035138
- Reza MahramDurham, NC 277051891894838
- Joshua McConkey, M.D.Durham, NC 277051508858333
- John MorrisDurham, NC 277051750464582
Common questions
What is May Yung-Yun Yen, MD's NPI number?
May Yung-Yun Yen, MD's National Provider Identifier (NPI) is 1194981340, issued on Aug 6, 2008. An NPI identifies a provider in billing; it is not a license.
Where is May Yung-Yun Yen, MD located?
The NPPES record lists a practice address at 2100 Erwin RD, Durham, NC, 27705. Phone: (919) 684-8411. Providers update this record themselves, so call before visiting.
How can I verify May Yung-Yun Yen, MD's license?
NPPES lists North Carolina license number 2013-01639, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does May Yung-Yun Yen, MD prescribe under Medicare Part D?
In 2024, May Yung-Yun Yen, MD had 35 Medicare Part D claims for 25 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.