TIMOTHY J SEMPOWSKI DO
NPI 1144213760
Anesthesiology in Chambersburg, PA
About Timothy J Sempowski Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY J SEMPOWSKI DO (NPI 1144213760) is an individual anesthesiology provider in Chambersburg, Pennsylvania, licensed in Pennsylvania (OS007856L) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Wellspan Chambersburg Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 26
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
Timothy J Sempowski Do 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 Timothy Sempowski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chambersburg, PA 17201
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,080 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wellspan Chambersburg Hospital
Acute Care Hospitals · Chambersburg, PAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHAMBERSBURG, PA 17201
CHAMBERSBURG, PA 17201
CHAMBERSBURG, PA 17201
CHAMBERSBURG, PA 17201
CHAMBERSBURG, PA 17201
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 Timothy Sempowski's NPI number?
The NPI number for Timothy Sempowski is 1144213760. It was assigned to this individual provider in the NPPES registry on August 30, 2005.
Where is Timothy Sempowski located?
Timothy Sempowski practices at 112 N 7th St, Chambersburg, PA 17201. The listed phone number is (717) 267-7164.
What is Timothy Sempowski's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Timothy Sempowski enrolled in Medicare?
Yes. Timothy Sempowski 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 Timothy Sempowski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Sempowski reassigns Medicare benefits to Wellspan Medical Group (Chambersburg, 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 Timothy Sempowski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Timothy Sempowski affiliated with any hospitals?
According to CMS data, Timothy Sempowski is affiliated with Wellspan Chambersburg Hospital.
When was this NPI record last updated?
The NPPES record for Timothy Sempowski was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Timothy J Sempowski, DO · NPI 1144213760
Anesthesiology physician in Chambersburg, Pennsylvania. Individual provider, active in the CMS NPPES registry since August 30, 2005.
## Identity
- **NPI:** 1144213760 (Entity type: Individual)
- **Enumerated:** August 30, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** OS007856L (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 112 N 7TH ST, Chambersburg, PA 17201-1720
- **Phone:** (717) 267-7164 · **Fax:** (717) 267-7414
## 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:** Wellspan Medical Group (NPI 1386429702, Chambersburg, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 1991
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Other 1541263 (PA); Other 1818940 (PA); Other 25-1716306 (PA); and 23 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1144213760) · Data from the CMS NPPES public registry.