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

David Sommerhalder

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1821417270

David Sommerhalder practises Hematology/Oncology in San Antonio, Texas. Qualified in 2013, 13 years ago. Practices with Texas Oncology PA, a 1,005-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Tennessee and Texas.

Years since qualifying
13
Licensed in
TN, TX
In the registry since
2014
Specialties on file
3
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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

San Antonio, TX

No coordinates on file. Search this address in Google Maps

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence S5270 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence S5270 (TN)

Record details

NPI number1821417270
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 14, 2014
Last updated in NPPESDecember 13, 2021
Certification dateDecember 13, 2021

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE, MEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Texas Oncology Pa — 1005 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients124
Average patient age71

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.

Food and Beverage $1,364 55 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $460 1 payment
Education $100 1 payment · 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.

  • Methodist Hospital Hospital · San Antonio, TX

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 San Antonio