NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Timothy J Sempowski, DO

Anesthesiology Physician in Chambersburg, PA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144213760

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Registry record

Entity type Individual (Type 1)
Name Timothy J Sempowski
Credential DO
Sex Male
Practice address Chambersburg, PA, 17201
Phone (717) 267-7164
Fax (717) 267-7414
Enumeration date Aug 30, 2005
Last updated in NPPES Mar 7, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License OS007856L (PA) Secondary
207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License OS007856L (PA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1541263 Other PA GATEWAY (AFC)
1818940 Other PA AETNA HMO (AFC)
25-1716306 Other PA SOUTH CENTRAL PREFERRED
6802736 Other PA AETNA HMO (PMFC)
OS007856L Other PA LICENSE
227938 Other PA UNISON (AFC)
25-1716306 Other PA FIRST HEALTH
001536159 0003 Medicaid PA -
781457 Other PA HIGHMARK BLUESHIELD
P00458425 Other PA RAILROAD MEDICARE
1007307260037 Other PA MEDICAID GROUP # (PMFC)
25-1716306 Other PA INTERGROUP
50073141 Other PA CAPITAL BLUECROSS (AFC)
50083159 Other PA CAPITAL BLUECROSS (PMFC)
G920-0105 Other PA CAREFIRST
2105895 Other PA MAMSI
25-1716306 Other PA HEALTHNET/TRICARE
25-1716306 Other PA DEVON
25-1716306 Other PA PHCS/MULTIPLAN
289731 Other PA UNISON (PMFC)

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Timothy Sempowski's NPI record?
Cross-check NPI 1144213760 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1144213760 active?
Yes, as of the latest NPPES snapshot, NPI 1144213760 is active (record last updated 2023-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.