ELLEN COLLEEN RITTER CRNA
NPI 1861431884
Nurse Anesthetist, Certified Registered in Smyrna, TN
About Ellen Colleen Ritter Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN COLLEEN RITTER CRNA (NPI 1861431884) is an individual nurse anesthetist, certified registered in Smyrna, Tennessee, licensed in Tennessee (11199) and active in the NPI registry since June 2006.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ellen Colleen Ritter Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Ellen Ritter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nashville, TN 37211
- Reassigned Medicare billing, Tennessee enrollment
- 86 clinicians in this Medicare group
Nashville, TN 37203
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: Anesthesia Medical Group, P.C.
- 757 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.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ellen Ritter's NPI number?
The NPI number for Ellen Ritter is 1861431884. It was assigned to this individual provider in the NPPES registry on June 5, 2006.
Where is Ellen Ritter located?
Ellen Ritter practices at 545 Stonecrest Pkwy, Smyrna, TN 37167. The listed phone number is (931) 551-1795.
What is Ellen Ritter's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ellen Ritter enrolled in Medicare?
Yes. Ellen Ritter is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ellen Ritter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Ritter reassigns Medicare benefits to 2 organizations: Nashville Anesthesia PLLC (Nashville, TN) and Anesthesia Medical Group, PC (Nashville, 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 Ellen Ritter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Ritter accept?
Health plans from Cigna Healthcare, Oscar Health and Oscar Insurance Company list Ellen Ritter 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 Ellen Ritter was last updated on June 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.