DR. CLAYTON DEVEREAU HUMPHREY D.O.
NPI 1104289057
Hospitalist in Knoxville, TN

Q: What is Clayton Humphrey's NPI number?

The NPI number for Clayton Humphrey is 1104289057. It was assigned to this individual provider in the NPPES registry on March 29, 2016.

Q: What is Clayton Humphrey's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Clayton Humphrey was last updated on April 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 29, 2016PECOS EnrolledAccepts Medicare Assignment

95.69/100

CMS Quality Rating

1924 ALCOA HWY # U56, KNOXVILLE, TN 37920(865) 305-9081(865) 305-8769 Get Directions Write a Review

NPPES record last updated: April 4, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 4, 2024, May 29, 2019, Mar 29, 2016 (3 updates tracked since 2016).

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About Dr. Clayton Devereau Humphrey D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CLAYTON DEVEREAU HUMPHREY D.O. (NPI 1104289057) is an individual hospitalist provider in Knoxville, Tennessee, licensed in Tennessee (3530) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with University Health System, Inc, and is a graduate of Lincoln Memorial University Medical Department (2016).

NPPES Registry Identity

NPI1104289057

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. CLAYTON DEVEREAU HUMPHREYCredential: D.O.

Location Address1924 ALCOA HWY # U56Knoxville, TN 37920-1511

Mailing AddressPo Box 415000-msc8135Nashville, TN 37241-8135 · (865) 670-6199 · Fax (865) 670-6198

Phone(865) 305-9081

Fax(865) 305-8769

Sole ProprietorNo

Medical School CMSLincoln Memorial University Medical DepartmentGraduated 2016

Enumeration DateMarch 29, 2016

Last NPPES UpdateApril 4, 20243 updates tracked since enumeration

NPPES CertifiedApril 2, 2024

✔ NPI 1104289057 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in TN · 3530

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

1924 ALCOA HWY # U56, Knoxville, TN 37920

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Clayton Devereau Humphrey D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759677222

PECOS Enrollment IDI20180920002582

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Clayton Humphrey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Health System, Inc

Same address

Dermatology

1924 ALCOA HWY
Knoxville, TN 37920

Reassigned Medicare billing, Tennessee enrollment
832 clinicians in this Medicare group

NPI 1083332951 (865) 305-9410

Cherokee Health Systems

34 mi

Federally Qualified Health Center (FQHC)

6350 W ANDREW JOHNSON HWY
Talbott, TN 37877

Reassigned Medicare billing, Tennessee enrollment
257 clinicians in this Medicare group

NPI 1134128820 (423) 587-7337

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

321 services133 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

96 services95 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

85 services41 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

66 services66 patients

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 G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Health System, Inc

Acute Care Hospitals · Knoxville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440015

Location1924 Alcoa HighwayKnoxville, TN 37920 · Knox County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37920 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

95.69/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

85.28

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers23 claims23 services$18.85 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

1 supplier11 claims11 services$912.48 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers23 claims23 services$98.25 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Sharon ***** May 7, 2025

5/5

Dr Humphrey was very knowledgeable but also relatable and down to earth. Most of all, he was helpful. He made all the difference in my progress.

Provider 5/5 Office Staff 5/5

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHELSEA NICOLE RYAN

Hospitalist