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DR. MARK KEVIN HOROWITZ DO
NPI 1669413878
Dermatology in Torrance, CA

Active since June 09, 2006PECOS Enrolled
77.86/100
CMS Quality Rating
23550 HAWTHORNE BLVD STE 200, TORRANCE, CA 90505(310) 373-2636 Get Directions Write a Review

NPPES record last updated: January 17, 2014. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Mark Kevin Horowitz Do NPPES

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

DR. MARK KEVIN HOROWITZ DO (NPI 1669413878) is an individual dermatology provider in Torrance, California, licensed in California (20A7642) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669413878
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameDR. MARK KEVIN HOROWITZCredential: DO
Location Address23550 HAWTHORNE BLVD STE 200Torrance, CA 90505-4722
Mailing Address23550 Hawthorne Blvd., #200Torrance, CA 90505-4722 · (310) 534-9131 · Fax (310) 534-9132
Phone(310) 373-2636
Sole ProprietorNo
Enumeration DateJune 9, 2006
Last NPPES UpdateJanuary 17, 2014
✔ NPI 1669413878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · 20A7642
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Also ListedDermatology · MOHS-Micrographic SurgeryTaxonomy 207ND0101X · License 20A7642 (CA)
Also ListedDermatology · DermatopathologyTaxonomy 207ND0900X · License 20A7642 (CA)
Also ListedDermatology · Clinical & Laboratory Dermatological ImmunologyTaxonomy 207NI0002X · License 20A7642 (CA)
Also ListedDermatology · Pediatric DermatologyTaxonomy 207NP0225X · License 20A7642 (CA)
Also ListedDermatology · Procedural DermatologyTaxonomy 207NS0135X · License 20A7642 (CA)
23550 HAWTHORNE BLVD STE 200, Torrance, CA 90505
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Other Identifiers 3

Medicare ID-Type Unspecified20A7642CA
Medicare UPINH39927CA
Other20A7642CA · Osteopathic Medical Board

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Kevin Horowitz Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
293 services69 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
200 services197 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
93 services91 patients
Biopsy of related skin growth, first growth 11102
A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.
31 services29 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.86/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality58.05
Promoting Interoperability93
Improvement Activities40
Cost73.99

Other Providers at the Same Location NPPES 4

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

DAVID HOROWITZ
Dermatology
23550 HAWTHORNE BLVD STE 200
TORRANCE, CA 90505
Los Angeles County (310) 373-2636
DIVYA SACHDEV MD
Dermatology
23550 HAWTHORNE BLVD STE 200
TORRANCE, CA 90505
Los Angeles County (310) 373-2636
DR. MICHAEL KASSARDJIAN D.O.
Dermatology
23550 HAWTHORNE BLVD STE 200, SUITE 200
TORRANCE, CA 90505
Los Angeles County (310) 326-2636
MARK HOROWITZ DO, INC.
Dermatology
23550 HAWTHORNE BLVD STE 200
TORRANCE, CA 90505
Los Angeles County (310) 373-2636

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 Mark Horowitz's NPI number?

The NPI number for Mark Horowitz is 1669413878. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Mark Horowitz located?

Mark Horowitz practices at 23550 Hawthorne Blvd Ste 200, Torrance, CA 90505. The listed phone number is (310) 373-2636.

What is Mark Horowitz's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Mark Horowitz enrolled in Medicare?

Yes. Mark Horowitz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Horowitz was last updated on January 17, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.