Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Clayton Devereau Humphrey, DO

Individual provider Hospitalist Physician · NPI 1104289057

Dr. Clayton Devereau Humphrey, DO practises Internal Medicine in Knoxville, Tennessee. Graduated from Lincoln Memorial University Medical Department in 2016, 10 years ago. Practices with University Health System, Inc, a 529-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
10
Trained at
Lincoln Memorial University Medical Department
Licensed in
TN
In the registry since
2016
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

1924 Alcoa Hwy # U56
Knoxville, TN 37920-1511
Phone: (865) 305-9081
Fax: (865) 305-8769
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 3530 (TN)

Record details

NPI number1104289057
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 29, 2016
Last updated in NPPESApril 4, 2024
Certification dateApril 2, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLINCOLN MEMORIAL UNIVERSITY MEDICAL DEPARTMENT
Graduated 2016 (10 years in practice)
Group practice University Health System, Inc. — 529 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 patients192
Services billed 708 a service is one billed item, such as a visit, a test or a procedure
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.

Food and Beverage $233 11 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.

Colleagues at University Health System, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 529 clinicians in the practice; 12 are shown here.

Other providers in Knoxville