ANN HALL BENFIELD CRNA
NPI 1346213600
Nurse Anesthetist, Certified Registered in Knoxville, TN
About Ann Hall Benfield Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN HALL BENFIELD CRNA (NPI 1346213600) is an individual nurse anesthetist, certified registered in Knoxville, Tennessee, licensed in Tennessee (049474) and active in the NPI registry since February 2006. She is a graduate of University Of Tennessee, Hsc, College Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Ann Hall Benfield Crna 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 Reassignments
2Medicare enrollment records show Ann Benfield reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Knoxville, TN 37920
- Reassigned Medicare billing, Tennessee enrollment
- 208 clinicians in this Medicare group
Lenoir City, TN 37772
- Reassigned Medicare billing, Tennessee enrollment
- 124 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 3
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.
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.
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.
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 Ann Benfield's NPI number?
The NPI number for Ann Benfield is 1346213600. It was assigned to this individual provider in the NPPES registry on February 8, 2006.
Where is Ann Benfield located?
Ann Benfield practices at 1924 Alcoa Hwy U109, Knoxville, TN 37920. The listed phone number is (865) 305-9220.
What is Ann Benfield's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ann Benfield enrolled in Medicare?
Yes. Ann Benfield 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 organizations bill Medicare for Ann Benfield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Benfield reassigns Medicare benefits to 2 organizations: University Anesthesiologists, PLLC (Knoxville, TN) and Resource Anesthesia, P.C. (Lenoir City, TN). Each 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 Ann Benfield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Benfield accept?
Health plans from Cigna Healthcare list Ann Benfield 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.
When was this NPI record last updated?
The NPPES record for Ann Benfield was last updated on November 1, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Ann Hall Benfield, CRNA · NPI 1346213600
Nurse Anesthetist, Certified Registered physician in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since February 8, 2006.
## Identity
- **NPI:** 1346213600 (Entity type: Individual)
- **Enumerated:** February 8, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 049474 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1924 ALCOA HWY, U109, Knoxville, TN 37920-1511
- **Phone:** (865) 305-9220
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Anesthesiologists, PLLC (NPI 1073619466, Knoxville, TN); Resource Anesthesia, P.C. (NPI 1033162045, Lenoir City, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 1998
## Record status
- **NPPES last updated:** November 1, 2011
- **Other identifiers:** Other RN107444 (TN); Other 049474 (TN)
---
Source: [NPI Profile](https://npiprofile.com/npi/1346213600) · Data from the CMS NPPES public registry.