Clayton Humphrey, D.O.
NPI 1104289057 · Hospitalist Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clayton Humphrey, D.O. is a Hospitalist Physician provider in Knoxville, TN (NPI 1104289057).
Provider details
- NPI number
- 1104289057
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 3530 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
671 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 321 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 96 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 85 | $72 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 85 | $28 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 66 | $158 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians and |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 31 | 13 |
| Pantoprazole Sodium | 25 | 24 |
| Furosemide | 20 | 19 |
| Atorvastatin Calcium | 19 | 18 |
| Cefuroxime Axetilbrand: Cefuroxime | 17 | 16 |
| Metoprolol Tartrate | 15 | 15 |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$239 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-29
- Last updated
- 2024-04-04
- Certified
- 2024-04-02
Frequently asked questions
- What is Clayton Humphrey's NPI number?
- Clayton Humphrey's National Provider Identifier (NPI) is 1104289057, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Humphrey's specialty?
- Clayton Humphrey is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Clayton Humphrey located?
- Clayton Humphrey's practice location on file with NPPES is 1924 Alcoa Hwy # U56, Knoxville, TN 37920-1511.
- What is Clayton Humphrey's phone number?
- The practice phone number listed in the NPPES registry for Clayton Humphrey is (865) 305-9081.
- Does Clayton Humphrey accept Medicare?
- Clayton Humphrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clayton Humphrey's NPI active?
- Yes — Clayton Humphrey's NPI (1104289057) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.