EMILY ISABELLA O'BRIEN APRN
NPI 1699615815
Nurse Practitioner - Gerontology in Louisville, KY
About Emily Isabella O'brien Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMILY ISABELLA O'BRIEN APRN (NPI 1699615815) is an individual gerontology provider in Louisville, Kentucky, licensed in Kentucky (4015045) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS, maintains a secondary practice location in Louisville, and is a graduate of Other (2026).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 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)
Emily Isabella O'brien Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Emily O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Louisville, KY 40216
- Reassigned Medicare billing, Kentucky enrollment
- Medicare enrollment name: University Of Louisville Physicians Inc
- 2,337 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 40215 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOUISVILLE, KY 40215
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 Emily O'brien's NPI number?
The NPI number for Emily O'brien is 1699615815. It was assigned to this individual provider in the NPPES registry on March 30, 2026.
Where is Emily O'brien located?
Emily O'brien practices at 4402 Churchman Ave Ste 201, Louisville, KY 40215. The listed phone number is (502) 955-1355.
What is Emily O'brien's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Emily O'brien enrolled in Medicare?
Yes. Emily O'brien is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Emily O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily O'brien reassigns Medicare benefits to University Of Louisville Phyisicians, Inc. (Louisville, KY). 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 Emily O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emily O'brien accept?
Health plans from Anthem Blue Cross and Blue Shield list Emily O'brien 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 Emily O'brien was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.
# Emily Isabella O'brien, APRN · NPI 1699615815
Gerontology physician in Louisville, Kentucky. Individual provider, active in the CMS NPPES registry since March 30, 2026.
## Identity
- **NPI:** 1699615815 (Entity type: Individual)
- **Enumerated:** March 30, 2026
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 4015045 (Kentucky)
- **Sole proprietor:** No
## Practice location
- **Address:** 4402 CHURCHMAN AVE STE 201, Louisville, KY 40215-3100
- **Phone:** (502) 955-1355
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Of Louisville Phyisicians, Inc. (NPI 1265127567, Louisville, KY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2026
## Record status
- **NPPES last updated:** September 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699615815) · Data from the CMS NPPES public registry.