NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Theodore Vlassis, R.PH

Pharmacist in Columbia, PA · enumerated 2006.

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

National Provider Identifier

1932158870

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Theodore Vlassis
Credential R.PH
Sex Male
Practice address 261 Locust St, Columbia, PA, 17512
Fax (717) 684-6239
Enumeration date May 8, 2006
Last updated in NPPES Oct 15, 2020

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP031994L (PA) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Theodore Vlassis?
The National Provider Identifier (NPI) for Theodore Vlassis is 1932158870, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theodore Vlassis practice?
The practice location on file with NPPES is in Columbia, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-15.