Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Horowitz DO, Inc

Organization Dermatology Physician · NPI 1952497414

Mark Horowitz DO, Inc is a Dermatology Physician in Torrance, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
6
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

23550 Hawthorne Blvd Ste 200
Torrance, CA 90505-4722
Phone: (310) 373-2636
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 20A7642 (CA)
MOHS-Micrographic Surgery Physician Taxonomy 207ND0101X · Licence 20A7642 (CA)
Dermatopathology Physician Taxonomy 207ND0900X · Licence 20A7642 (CA)
Clinical & Laboratory Dermatological Immunology Physician Taxonomy 207NI0002X · Licence 20A7642 (CA)
Pediatric Dermatology Physician Taxonomy 207NP0225X · Licence 20A7642 (CA)
Procedural Dermatology Physician Taxonomy 207NS0135X · Licence 20A7642 (CA)

Record details

NPI number1952497414
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Horowitz — Owner · (310) 373-2636
NPI enumeratedOctober 4, 2006
Last updated in NPPESMay 23, 2011
Mailing address3521 Lomita Blvd Ste 103, Torrance, CA 90505-5041

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