Mark Horowitz, M.D.
NPI 1477649853 · Pediatrics Physician · Warwick, NY
Mark Horowitz, M.D. is a Pediatrics Physician provider in Warwick, NY (NPI 1477649853).
Provider details
- NPI number
- 1477649853
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 135749-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2006-10-05
- Last updated
- 2009-06-17
Frequently asked questions
- What is Mark Horowitz's NPI number?
- Mark Horowitz's National Provider Identifier (NPI) is 1477649853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Horowitz's specialty?
- Mark Horowitz is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Horowitz located?
- Mark Horowitz's practice location on file with NPPES is 10 Ronald Reagan Blvd, Warwick, NY 10990-4104.
- What is Mark Horowitz's phone number?
- The practice phone number listed in the NPPES registry for Mark Horowitz is (845) 986-2058.
- Is Mark Horowitz's NPI active?
- Yes — Mark Horowitz's NPI (1477649853) is active in the NPPES registry as of the last update on 2009-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.