NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Thaddeus Maksymowicz

Pharmacist in New York, NY · enumerated 2010.

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

National Provider Identifier

1598088270

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Thaddeus Maksymowicz
Sex Male
Practice address 253 W 72nd St, New York, NY, 10023
Enumeration date Mar 9, 2010
Last updated in NPPES Mar 9, 2010

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 28514 (NY) Primary

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 Thaddeus Maksymowicz?
The National Provider Identifier (NPI) for Thaddeus Maksymowicz is 1598088270, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thaddeus Maksymowicz practice?
The practice location on file with NPPES is in New York, NY. 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 2010-03-09.