Nelson Jen An Chao, MD
Medical Oncology Physician · Durham, NC
Nelson Jen An Chao, MD is a medical oncology physician with a practice address in Durham, North Carolina, and NPI 1215951587, issued on Jul 27, 2006. Check the license (North Carolina 96-01574, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nelson Jen An Chao
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 96-01574 NC
Self-reported in NPPES; status is on the state search - Practice location
- 4101 N Roxboro St, Durham, NC 27704
- Phone
- (919) 684-8111
- Enumerated
- Jul 27, 2006
- Record last updated
- Sep 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid IDs
- 8922051 NC
2232478 NC - Medicare enrollment
- Enrolled (PECOS I20051014000807); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 191 in North Carolina → Look up another NPI →
Also registered at 4101 N Roxboro St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Julie Adams, MDPsychiatry Physician1295753440
- Diane Allen, M.D.Orthopaedic Surgery Physician1174610802
- Terrence Allen, MDAnesthesiology Physician1760553424
- Ok Chon Allison, NPNurse Practitioner1609822741
Verify Nelson Jen An Chao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 96-01574Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average medical oncology physician in 2024
177 Medicare Part D claims for 33 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.
Most prescribed
- Jakafi18 claims
- Acyclovir16 claims
- Bosulif11 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.
Industry payments in 2024: $1,722.19
5 payments; by number, the most common kind was travel and lodging; the largest payer was Zoll Medical Corporation. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Duke Health Integrated Practice IncDurham, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nelson Jen An Chao among 191 medical oncology physician records in North Carolina
Nelson Jen An Chao, MD is one of 191 medical oncology physician records with a practice address in North Carolina. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 51% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1981 · median 2003 among the 140 with a school on file
- Record last updated2008 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in North Carolina
There are 191 medical oncology physician records in North Carolina.
All 191 in North Carolina → Every provider in Durham → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Amy Abernethy, M.D.Durham, NC 277041962598094
- Andrew Armstrong, MDDurham, NC 277041528160199
- Neal Ready, MDDurham, NC 277041932156197
- Kalsoom Khan, M.D.Durham, NC 277031275586612
- Radhika Khwaja, M.D.Durham, NC 277051639270739
- Christina Lynch, PA-CDurham, NC 277051770734188
- Hannah McManus, MDDurham, NC 277051821451485
- Nathan Nussbaum, M.D.Durham, NC 277051760620082
Common questions
What is Nelson Jen An Chao, MD's NPI number?
Nelson Jen An Chao, MD's National Provider Identifier (NPI) is 1215951587, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nelson Jen An Chao, MD located?
The NPPES record lists a practice address at 4101 N Roxboro St, Durham, NC, 27704. Phone: (919) 684-8111. Providers update this record themselves, so call before visiting.
How can I verify Nelson Jen An Chao, MD's license?
NPPES lists North Carolina license number 96-01574, 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 Nelson Jen An Chao, MD prescribe under Medicare Part D?
In 2024, Nelson Jen An Chao, MD had 177 Medicare Part D claims for 33 beneficiaries; the average among medical oncology physician prescribers was 703. 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.