Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John William Adams, DO

Individual provider Hematology & Oncology Physician · NPI 1548262900

John William Adams, DO practises Medical Oncology in Arlington, Texas. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1975, 51 years ago. Practices with Texas Oncology PA, a 1,005-clinician group and accepts Medicare assignment. Licensed in Florida, Hawaii and Texas.

Years since qualifying
51
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
FL, HI, TX
In the registry since
2005
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

906 W Randol Mill Rd Arlington Cancer Ctr
Arlington, TX 76012-2510
Phone: (817) 261-0929
Fax: (817) 543-4658
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence F2145 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence F2145 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence OS3674 (FL)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence DOS-561 (HI)

Record details

NPI number1548262900
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 15, 2005
Last updated in NPPESApril 13, 2024
Certification dateApril 13, 2024

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1975 (51 years in practice)
Group practice Texas Oncology Pa — 1005 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 patients352
Average patient age75

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.

Long term medical supply or device loan $1,097 11 payments · a device or supply lent for a long period, not cash
Food and Beverage $660 27 payments · a meal or drink at a meeting or visit, not a fee
Education $193 3 payments · educational material or training, not a fee

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. Those with a page here are linked.

Colleagues at Texas Oncology PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1005 clinicians in the practice; 12 are shown here.

Other providers in Arlington