CAROLINE WITMER NP
NPI 1457123440
Nurse Practitioner - Adult Health in Exton, PA
About Caroline Witmer Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLINE WITMER NP (NPI 1457123440) is an individual adult health provider in Exton, Pennsylvania, licensed in Pennsylvania (SP028493) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
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
Caroline Witmer Np 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 Reassignment
Medicare enrollment records show Caroline Witmer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Upland, PA 19013
- Reassigned Medicare billing, Pennsylvania enrollment
- 44 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAPaoli Hospital
Acute Care Hospitals · Paoli, PAChester County Hospital
Acute Care Hospitals · West Chester, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19341 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EXTON, PA 19341
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 Caroline Witmer's NPI number?
The NPI number for Caroline Witmer is 1457123440. It was assigned to this individual provider in the NPPES registry on October 24, 2023.
Where is Caroline Witmer located?
Caroline Witmer practices at 860 Springdale Dr, Exton, PA 19341. The listed phone number is (610) 524-3703.
What is Caroline Witmer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Caroline Witmer enrolled in Medicare?
Yes. Caroline Witmer 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 organization bills Medicare for Caroline Witmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Witmer reassigns Medicare benefits to Clinical Renal Associates, LLC (Upland, PA). 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 Caroline Witmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caroline Witmer accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Caroline Witmer 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.
Is Caroline Witmer affiliated with any hospitals?
According to CMS data, Caroline Witmer is affiliated with Hospital Of Univ Of Pennsylvania, Paoli Hospital and Chester County Hospital.
When was this NPI record last updated?
The NPPES record for Caroline Witmer was last updated on October 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Caroline Witmer, NP · NPI 1457123440
Adult Health physician in Exton, Pennsylvania. Individual provider, active in the CMS NPPES registry since October 24, 2023.
## Identity
- **NPI:** 1457123440 (Entity type: Individual)
- **Enumerated:** October 24, 2023
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** SP028493 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 860 SPRINGDALE DR, Exton, PA 19341-2847
- **Phone:** (610) 524-3703
## 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:** Clinical Renal Associates, LLC (NPI 1689620254, Upland, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** October 24, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1457123440) · Data from the CMS NPPES public registry.