MRS. MICHELLE LEE OVERBAY CRNA
NPI 1609006444
Nurse Anesthetist, Certified Registered in Oak Ridge, TN
About Mrs. Michelle Lee Overbay Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MICHELLE LEE OVERBAY CRNA (NPI 1609006444) is an individual nurse anesthetist, certified registered in Oak Ridge, Tennessee, licensed in Tennessee (APN14440) and active in the NPI registry since July 2009. She is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 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
Mrs. Michelle Lee Overbay 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
3Medicare enrollment records show Michelle Overbay reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lenoir City, TN 37772
- Reassigned Medicare billing, Tennessee enrollment
- 124 clinicians in this Medicare group
Knoxville, TN 37920
- Reassigned Medicare billing, Tennessee enrollment
- 208 clinicians in this Medicare group
Knoxville, TN 37916
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: American Anesthesiology Of Tennessee PC
- 959 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 4
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 37830 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.
OAK RIDGE, TN 37830
OAK RIDGE, TN 37830
OAK RIDGE, TN 37830
OAK RIDGE, TN 37830
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 Michelle Overbay's NPI number?
The NPI number for Michelle Overbay is 1609006444. It was assigned to this individual provider in the NPPES registry on July 14, 2009.
Where is Michelle Overbay located?
Michelle Overbay practices at 990 Oak Ridge Tpke, Oak Ridge, TN 37830. The listed phone number is (865) 835-1000.
What is Michelle Overbay's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Michelle Overbay enrolled in Medicare?
Yes. Michelle Overbay 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 Michelle Overbay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Overbay reassigns Medicare benefits to 3 organizations: Resource Anesthesia, P.C. (Lenoir City, TN), University Anesthesiologists, PLLC (Knoxville, TN) and American Anesthesiology Of Tennessee, P.C. (Knoxville, 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 Michelle Overbay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michelle Overbay accept?
Health plans from Cigna Healthcare list Michelle Overbay 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 Michelle Overbay was last updated on March 11, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Mrs. Michelle Lee Overbay, CRNA · NPI 1609006444
Nurse Anesthetist, Certified Registered physician in Oak Ridge, Tennessee. Individual provider, active in the CMS NPPES registry since July 14, 2009.
## Identity
- **NPI:** 1609006444 (Entity type: Individual)
- **Enumerated:** July 14, 2009
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** APN14440 (Tennessee)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 990 OAK RIDGE TPKE, Oak Ridge, TN 37830-6976
- **Phone:** (865) 835-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Resource Anesthesia, P.C. (NPI 1033162045, Lenoir City, TN); University Anesthesiologists, PLLC (NPI 1073619466, Knoxville, TN); American Anesthesiology Of Tennessee, P.C. (NPI 1245279777, Knoxville, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** March 11, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1609006444) · Data from the CMS NPPES public registry.