EILEEN MARY CASSIDY M.D.
NPI 1689619629
Obstetrics & Gynecology in Nashville, TN
About Eileen Mary Cassidy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EILEEN MARY CASSIDY M.D. (NPI 1689619629) is an individual obstetrics & gynecology provider in Nashville, Tennessee, licensed in Tennessee (41184) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
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
Eileen Mary Cassidy 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 Reassignments
2Medicare enrollment records show Eileen Cassidy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Goodlettsville, TN 37072
- Reassigned Medicare billing, Tennessee enrollment
- 734 clinicians in this Medicare group
Goodlettsville, TN 37072
- Reassigned Medicare billing, Tennessee enrollment
- 317 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37203 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NASHVILLE, TN 37203
NASHVILLE, TN 37203
NASHVILLE, TN 37203
NASHVILLE, TN 37203
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 Eileen Cassidy's NPI number?
The NPI number for Eileen Cassidy is 1689619629. It was assigned to this individual provider in the NPPES registry on June 16, 2006.
Where is Eileen Cassidy located?
Eileen Cassidy practices at 2011 Murphy Ave Ste 601, Nashville, TN 37203. The listed phone number is (615) 329-6622.
What is Eileen Cassidy's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Eileen Cassidy enrolled in Medicare?
Yes. Eileen Cassidy 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 Eileen Cassidy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Cassidy reassigns Medicare benefits to 2 organizations: Advanced Diagnostic Imaging, PC (Goodlettsville, TN) and Advanced Specialists, PC (Goodlettsville, 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 Eileen Cassidy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eileen Cassidy accept?
Health plans from BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Insurance Company and UnitedHealthcare list Eileen Cassidy 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 Eileen Cassidy was last updated on April 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Eileen Mary Cassidy, M.D. · NPI 1689619629
Obstetrics & Gynecology physician in Nashville, Tennessee. Individual provider, active in the CMS NPPES registry since June 16, 2006.
## Identity
- **NPI:** 1689619629 (Entity type: Individual)
- **Enumerated:** June 16, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 41184 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 2011 MURPHY AVE STE 601, Nashville, TN 37203-2220
- **Phone:** (615) 329-6622
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Advanced Diagnostic Imaging, PC (NPI 1093741464, Goodlettsville, TN); Advanced Specialists, PC (NPI 1649133463, Goodlettsville, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** April 29, 2025
- **Other identifiers:** Medicaid 4138922 (TN); Other 3818291 (TN)
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Source: [NPI Profile](https://npiprofile.com/npi/1689619629) · Data from the CMS NPPES public registry.