CASEY L HOLLAWELL MD
NPI 1689258626
Radiology - Radiation Oncology in West Chester, PA
About Casey L Hollawell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CASEY L HOLLAWELL MD (NPI 1689258626) is an individual radiation oncology provider in West Chester, Pennsylvania, licensed in Pennsylvania (MD489986) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Casey L Hollawell Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Casey Hollawell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Berwyn, PA 19312
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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 19380 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEST CHESTER, PA 19380
WEST CHESTER, PA 19380
WEST CHESTER, PA 19380
WEST CHESTER, PA 19380
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 Casey Hollawell's NPI number?
The NPI number for Casey Hollawell is 1689258626. It was assigned to this individual provider in the NPPES registry on May 6, 2021.
Where is Casey Hollawell located?
Casey Hollawell practices at 701 East Marshall Street, West Chester, PA 19380. The listed phone number is (610) 431-5530.
What is Casey Hollawell's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Casey Hollawell enrolled in Medicare?
Yes. Casey Hollawell is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Casey Hollawell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Casey Hollawell reassigns Medicare benefits to University Of Penn-Medical Group (Berwyn, 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 Casey Hollawell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Casey Hollawell was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Casey L Hollawell, MD · NPI 1689258626
Radiation Oncology physician in West Chester, Pennsylvania. Individual provider, active in the CMS NPPES registry since May 6, 2021.
## Identity
- **NPI:** 1689258626 (Entity type: Individual)
- **Enumerated:** May 6, 2021
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** MD489986 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 EAST MARSHALL STREET, West Chester, PA 19380-4412
- **Phone:** (610) 431-5530 · **Fax:** (610) 431-5144
## 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 Penn-Medical Group (NPI 1396133559, Berwyn, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 31, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1689258626) · Data from the CMS NPPES public registry.