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MARC HORWITZ
NPI 1295154409
Internal Medicine in Los Angeles, CA

Active since April 15, 2014
10833 LE CONTE AVE, 37-121 CHS, LOS ANGELES, CA 90095(310) 206-0074 Get Directions Write a Review

NPPES record last updated: April 15, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Marc Horwitz NPPES

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

MARC HORWITZ (NPI 1295154409) is an individual internal medicine provider in Los Angeles, California, licensed in California (G54465) and active in the NPI registry since April 2014.

NPPES Registry Identity

NPI1295154409
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARC HORWITZ
Location Address10833 LE CONTE AVE, 37-121 CHSLos Angeles, CA 90095-3075
Mailing Address10833 Le Conte Ave, 37-121 ChsLos Angeles, CA 90095-3075 · (310) 206-0074
Phone(310) 206-0074
Sole ProprietorNo
Enumeration DateApril 15, 2014
✔ NPI 1295154409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G54465
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.
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License G54465 (CA)
10833 LE CONTE AVE, Los Angeles, CA 90095
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Other Providers at the Same Location NPPES 20

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

DR. JENNIFER A FULCHER M.D., PH.D.
Internal Medicine (Infectious Disease)
10833 LE CONTE AVE, CHS 37-121
LOS ANGELES, CA 90095
Los Angeles County (310) 825-7225
LEE HAROLD HILBORNE MD
Pathology (Anatomic Pathology & Clinical Pathology)
10833 LE CONTE AVE, STE B-186 CHS
LOS ANGELES, CA 90095
Los Angeles County (310) 794-8285
PETER TONTONOZ MD
Pathology (Anatomic Pathology)
10833 LE CONTE AVE, STE B-186 CHS
LOS ANGELES, CA 90095
Los Angeles County (310) 794-8285
HSIN Y LEE MD
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Los Angeles County (310) 825-4721
COLIN J. WELLS MD
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Los Angeles County (310) 301-6800
RODNEY L TEICHNER MD
Anesthesiology
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Los Angeles County (310) 825-9111
DR. LLOYD EDWARD GREASER III M.D.
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE, DEPARTMENT OF RADIOLOGY
LOS ANGELES, CA 90095
Los Angeles County (310) 825-4321
BRANDON KEN ITAGAKI M.D.
Internal Medicine
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Los Angeles County (310) 825-8307

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 Marc Horwitz's NPI number?

The NPI number for Marc Horwitz is 1295154409. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Where is Marc Horwitz located?

Marc Horwitz practices at 10833 Le Conte Ave 37-121 Chs, Los Angeles, CA 90095. The listed phone number is (310) 206-0074.

What is Marc Horwitz'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 Marc Horwitz was last updated on April 15, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.