DR. LESZEK KAROWIEC MD
NPI 1265519672
Internal Medicine in Gaithersburg, MD

Active since November 01, 2006
501 NORTH FREDERICK AVENUE, GAITHERSBURG, MD 20877(301) 258-7265(301) 258-7294 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Leszek Karowiec Md NPPES

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

DR. LESZEK KAROWIEC MD (NPI 1265519672) is an individual internal medicine provider in Gaithersburg, Maryland, licensed in Maryland (D35859) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1265519672
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. LESZEK KAROWIECCredential: MD
Location Address501 NORTH FREDERICK AVENUEGaithersburg, MD 20877-2598
Mailing Address2101 East Jefferson Street, Ppqa Medicare Compliance Unit 6 West Attn Theresa BrookRockville, MD 20852-4908 · (301) 816-6660 · Fax (301) 816-6308
Fax(301) 258-7294
Sole ProprietorNo
Enumeration DateNovember 1, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1265519672 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MD · D35859
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
501 NORTH FREDERICK AVENUE, Gaithersburg, MD 20877

Other Identifiers 2

Medicare ID-Type Unspecified129132M92
Medicare UPINC49235

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877
Optometrist (Pediatrics)
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877
Nurse Practitioner (Pediatrics)
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877
Pediatrics
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877
Clinical Nurse Specialist (Neonatal)
501 NORTH FREDERICK AVENUE
GALTHERSBURG, MD 20877
Internal Medicine
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877
Obstetrics & Gynecology
501 NORTH FREDERICK AVENUE
GAITHERSBURG, MD 20877

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 Leszek Karowiec's NPI number?

The NPI number for Leszek Karowiec is 1265519672. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Leszek Karowiec located?

Leszek Karowiec practices at 501 North Frederick Avenue, Gaithersburg, MD 20877. The listed phone number is (301) 258-7265.

What is Leszek Karowiec's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Leszek Karowiec was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.