Reed Horwitz, M.D.
NPI 1558420398 · Diagnostic Radiology Physician · Ventura, CA
Reed Horwitz, M.D. is a Diagnostic Radiology Physician provider in Ventura, CA (NPI 1558420398).
Provider details
- NPI number
- 1558420398
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A34833 (CA)
Specialties & taxonomies
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
- 2006-12-07
- Last updated
- 2008-09-09
Frequently asked questions
- What is Reed Horwitz's NPI number?
- Reed Horwitz's National Provider Identifier (NPI) is 1558420398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Reed Horwitz's specialty?
- Reed Horwitz is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Reed Horwitz located?
- Reed Horwitz's practice location on file with NPPES is 3291 Loma Vista Rd, Ventura, CA 93003-3099.
- What is Reed Horwitz's phone number?
- The practice phone number listed in the NPPES registry for Reed Horwitz is (805) 652-6080.
- Is Reed Horwitz's NPI active?
- Yes — Reed Horwitz's NPI (1558420398) is active in the NPPES registry as of the last update on 2008-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.