DR. WILLIAM E COX M.D.
NPI 1730180993
Anesthesiology in Knoxville, TN
About Dr. William E Cox M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM E COX M.D. (NPI 1730180993) is an individual anesthesiology provider in Knoxville, Tennessee, licensed in Tennessee (37691) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with University Health System, Inc, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Accepted 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. William E Cox M.d. 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.
Medicare Billing Reassignment
Medicare enrollment records show William Cox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Knoxville, TN 37920
- Reassigned Medicare billing, Tennessee enrollment
- 58 clinicians in this Medicare group
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
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.
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, TNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
KNOXVILLE, TN 37920
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Cox's NPI number?
The NPI number for William Cox is 1730180993. It was assigned to this individual provider in the NPPES registry on August 9, 2005.
Where is William Cox located?
William Cox practices at 1924 Alcoa Hwy Box U109, Knoxville, TN 37920. The listed phone number is (865) 544-9220.
What is William Cox's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Cox enrolled in Medicare?
Yes. William Cox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for William Cox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Cox reassigns Medicare benefits to University Anesthesiologists, PLLC (Knoxville, TN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Cox accept?
Health plans from Cigna Healthcare and Oscar Insurance Company list William Cox as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is William Cox affiliated with any hospitals?
According to CMS data, William Cox is affiliated with University Health System, Inc.
When was this NPI record last updated?
The NPPES record for William Cox was last updated on July 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. William E Cox, M.D. · NPI 1730180993
Anesthesiology physician in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since August 9, 2005.
## Identity
- **NPI:** 1730180993 (Entity type: Individual)
- **Enumerated:** August 9, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 37691 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1924 ALCOA HWY, BOX U109, Knoxville, TN 37920-1511
- **Phone:** (865) 544-9220
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Anesthesiologists, PLLC (NPI 1558479279, Knoxville, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 2000
## Record status
- **NPPES last updated:** July 11, 2007
- **Other identifiers:** Medicaid 3890792 (TN); Other 4086991 (TN); Medicare UPIN I03403; and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1730180993) · Data from the CMS NPPES public registry.