Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Stefan Karos Mdpc

Q: What is the NPI number for Stefan Karos Mdpc?

The NPI for Stefan Karos Mdpc is 1922374636, a Type 2 (organization) record in the CMS NPPES registry.

Urology Physician in Leominster, MA · enumerated 2012 · authorized official Stefan Karos, Medical Director.

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

National Provider Identifier

1922374636

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Stefan Karos Mdpc

Practice address 50 Memorial Dr Ste 104, Leominster, MA, 01453

Phone (978) 466-4075

Fax (978) 466-4222

Enumeration date Mar 27, 2012

Last updated in NPPES Mar 27, 2012

Taxonomy & classification

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 73838 (MA) Primary

Authorized official

Name Stefan Karos

Title Medical Director

Phone (978) 466-4075

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 Stefan Karos Mdpc?

The NPI for Stefan Karos Mdpc is 1922374636, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Stefan Karos Mdpc?

NPPES lists Stefan Karos (Medical Director) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-27.