Marshall Horwitz, D.D.S.
NPI 1750374468 · Dentist · Worcester, MA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Horwitz, D.D.S. is a Dentist provider in Worcester, MA (NPI 1750374468).
Provider details
- NPI number
- 1750374468
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- D.D.S.
- Sex
- Male
- License
- 13920 (MA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-08-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marshall Horwitz's NPI number?
- Marshall Horwitz's National Provider Identifier (NPI) is 1750374468, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Horwitz's specialty?
- Marshall Horwitz is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Marshall Horwitz located?
- Marshall Horwitz's practice location on file with NPPES is 111 Elm St, Worcester, MA 01609-1967.
- What is Marshall Horwitz's phone number?
- The practice phone number listed in the NPPES registry for Marshall Horwitz is (508) 799-4626.
- Does Marshall Horwitz accept Medicare?
- Marshall Horwitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Horwitz's NPI active?
- Yes — Marshall Horwitz's NPI (1750374468) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.