MARC HORWITZ
NPI 1295154409
Internal Medicine in Los Angeles, CA

NPI Status: Active since April 15, 2014

Contact Information

10833 LE CONTE AVE
37-121 CHS
LOS ANGELES, CA
ZIP 90095
Phone: (310) 206-0074

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  • Individual
  • Male
  • Internal Medicine

About MARC HORWITZ

This page provides the complete NPI Profile along with additional information for Marc Horwitz, an internist established in Los Angeles, California with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1295154409 assigned on April 2014. The practitioner's primary taxonomy code is 207R00000X with license number G54465 (CA). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1295154409
Provider Name
MARC HORWITZ
Gender
Male
Entity Type
Individual
Location Address
10833 LE CONTE AVE 37-121 CHS LOS ANGELES, CA 90095
Location Phone
(310) 206-0074
Mailing Address
10833 LE CONTE AVE 37-121 CHS LOS ANGELES, CA 90095
Mailing Phone
(310) 206-0074
Is Sole Proprietor?
No
Enumeration Date
04-15-2014
Last Update Date
04-15-2014
Code Navigator

An internist like Marc Horwitz is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
G54465
License State
CA
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RI0200XAllopathic & Osteopathic Physicians

Internal Medicine
Infectious Disease

G54465 (CA)

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1295154409, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
5
Unchanged
Pos 5
1
Doubled → 2
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
4
Unchanged
Pos 9
0
Doubled → 0
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 1 → 2 4 → 8 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 8 + 5 + 2 + 5 + 8 + 4 + 0 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1295154409.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Physician Assistant (Surgical)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Pathology (Anatomic Pathology & Clinical Pathology)
10833 LE CONTE AVE, CHS B-186
LOS ANGELES, CA 90095
Pathology (Anatomic Pathology & Clinical Pathology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Dentist (Oral and Maxillofacial Radiology)
10833 LE CONTE AVE, CHS 10-165
LOS ANGELES, CA 90095
Pathology (Anatomic Pathology)
10833 LE CONTE AVE, B-180 CHS
LOS ANGELES, CA 90095
Genetic Counselor, MS
10833 LE CONTE AVE, UCLA PEDIATRICS GENETICS CHS 32225
LOS ANGELES, CA 90095
Orthopaedic Surgery (Hand Surgery)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Dentist (Oral and Maxillofacial Pathology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Dentist (Oral and Maxillofacial Pathology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Radiology (Vascular & Interventional Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Pediatrics
10833 LE CONTE AVE, 12-441 MDCC
LOS ANGELES, CA 90095
Anesthesiology
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Anesthesiology
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Radiology (Neuroradiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095
Pediatrics (Pediatric Pulmonology)
10833 LE CONTE AVE, 12-311 MDCC
LOS ANGELES, CA 90095
Pediatrics (Pediatric Infectious Diseases)
10833 LE CONTE AVE, 12-441 MDCC
LOS ANGELES, CA 90095
Radiology (Diagnostic Radiology)
10833 LE CONTE AVE
LOS ANGELES, CA 90095

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295154409, enumerated as an "individual" on April 15, 2014.

The provider is located at 10833 LE CONTE AVE 37-121 CHS LOS ANGELES, CA 90095 and the phone number is (310) 206-0074.

Internal Medicine with taxonomy code 207R00000X.