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STEFAN KAROS MDPC
NPI 1922374636
Urology in Leominster, MA

Active since March 27, 2012
50 MEMORIAL DR STE 104, LEOMINSTER, MA 01453(978) 466-4075(978) 466-4222 Get Directions Write a Review

NPPES record last updated: March 27, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Stefan Karos Mdpc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEFAN KAROS MDPC (NPI 1922374636) is a healthcare organization registered as an urology in Leominster, Massachusetts and active in the NPI registry since March 2012. The organization lists Stefan Karos, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1922374636
Entity TypeOrganization
Primary Taxonomy208800000X
Legal Business NameSTEFAN KAROS MDPC
Location Address50 MEMORIAL DR STE 104Leominster, MA 01453-2238
Mailing Address50 Memorial Dr Ste 104Leominster, MA 01453-2238 · (978) 466-4075 · Fax (978) 466-4222
Phone(978) 466-4075
Fax(978) 466-4222
Organization SubpartNo
Authorized OfficialStefan KarosMedical Director · (978) 466-4075
Enumeration DateMarch 27, 2012
✔ NPI 1922374636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in MA · 73838
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
50 MEMORIAL DR STE 104, Leominster, MA 01453
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Other Identifiers 1

Medicare UPINE77134MA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stefan Karos Mdpc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Stefan Karos Mdpc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Stefan Karos, M.D.
Urology
NPI 1376530378
50 MEMORIAL DR SUITE 104
Leominster, MA 01453
(978) 466-4075
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Stefan Karos Mdpc's NPI number?

The NPI number for Stefan Karos Mdpc is 1922374636. It was assigned to this organization in the NPPES registry on March 27, 2012.

Where is Stefan Karos Mdpc located?

Stefan Karos Mdpc is located at 50 Memorial Dr Ste 104, Leominster, MA 01453. The listed phone number is (978) 466-4075.

What is Stefan Karos Mdpc's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Stefan Karos Mdpc enrolled in Medicare?

Yes. Stefan Karos Mdpc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Stefan Karos Mdpc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Urology) reassigns their Medicare billing to Stefan Karos Mdpc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Stefan Karos Mdpc was last updated on March 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.