James Knox Willson, MD
Hematology & Oncology Physician · Dallas, TX
James Knox Willson, MD is a hematology & oncology physician with a practice address in Dallas, Texas, and NPI 1366405888, issued on Apr 7, 2006. Check the license (Texas M3441, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Knox Willson
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- M3441 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd, Dallas, TX 75390
- Phone
- (214) 645-8600
- Enumerated
- Apr 7, 2006
- Record last updated
- Apr 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 922 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Knox Willson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M3441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $25.09
1 payment: food and beverage; the largest payer was Abiomed. The 8,560 providers of this specialty with any payment received $7,481.41 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.
James Knox Willson among 922 hematology & oncology physician records in Texas
James Knox Willson, MD is one of 922 hematology & oncology physician records with a practice address in Texas. 87% 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, 57% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2008 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Texas
There are 922 hematology & oncology physician records in Texas.
All 922 in Texas → Every provider in Dallas → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mary Auchus, MDDallas, TX 753901235198359
- David Auerbach, MDDallas, TX 753901205896297
- Robert Collins, MDDallas, TX 753901851350979
- Kevin Courtney, M.D.Dallas, TX 753901346215001
- Jonathan Dowell, MDDallas, TX 753901497724983
- Barbara Haley, MDDallas, TX 753901518936087
- Sandra Hofmann, MD PHDDallas, TX 753901306805437
- Randall Hughes, MDDallas, TX 753901417916537
Common questions
What is James Knox Willson, MD's NPI number?
James Knox Willson, MD's National Provider Identifier (NPI) is 1366405888, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Knox Willson, MD located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 645-8600. Providers update this record themselves, so call before visiting.
How can I verify James Knox Willson, MD's license?
NPPES lists Texas license number M3441, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.