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

Shawnt Tosonian

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1003304528

Shawnt Tosonian is registered under Pulmonary Disease in Knoxville, Tennessee. Qualified in 2018, 8 years ago. Practices with Physician Services Corporation of Southern Illinois Inc, a 122-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
8
Licensed in
IL, WI
In the registry since
2018
Specialties on file
3
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Practice location Address checks out

1924 Alcoa Hwy # U-114
Knoxville, TN 37920-1511
Phone: (865) 305-6324
Fax: (865) 305-6429
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1818 N Meade St, Appleton, WI 54911 — (920) 735-7645

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 036171279 (IL)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 4426 (WI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1003304528
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 30, 2018
Last updated in NPPESSeptember 6, 2024
Certification dateSeptember 6, 2024

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Physician Services Corporation Of Southern Illinois Inc — 122 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations11 on file with Medicare

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 patients101
Services billed 167 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Education $3,000 2 payments · educational material or training, not a fee
Travel and Lodging $164 1 payment · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $164 2 payments · a meal or drink at a meeting or visit, 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 Physician Services Corporation of Southern Illinois Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 122 clinicians in the practice; 12 are shown here.

Other providers in Knoxville