Mark Horowitz DO, Inc.
NPI 1952497414 · Dermatology Physician · Torrance, CA
Mark Horowitz DO, Inc. is a Dermatology Physician organization in Torrance, CA (NPI 1952497414).
Provider details
- NPI number
- 1952497414
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Horowitz, Owner(310) 373-2636
- License
- 20A7642 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Procedural Dermatology Physician207NS0135X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2011-05-23
Frequently asked questions
- What is Mark Horowitz DO, Inc.'s NPI number?
- Mark Horowitz DO, Inc.'s National Provider Identifier (NPI) is 1952497414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Horowitz DO, Inc.?
- Mark Horowitz DO, Inc. is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Horowitz DO, Inc. located?
- Mark Horowitz DO, Inc.'s practice location on file with NPPES is 23550 Hawthorne Blvd Ste 200, Torrance, CA 90505-4722.
- What is Mark Horowitz DO, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Mark Horowitz DO, Inc. is (310) 373-2636.
- Who is the authorized official for Mark Horowitz DO, Inc.?
- The authorized official listed on Mark Horowitz DO, Inc.'s NPPES record is Mark Horowitz, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Horowitz DO, Inc.'s NPI active?
- Yes — Mark Horowitz DO, Inc.'s NPI (1952497414) is active in the NPPES registry as of the last update on 2011-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.