IndividualActive
Steven Horowitz, MD
NPI 1013999770 · Neurology Physician · Boston, MA
Steven Horowitz, MD is a Neurology Physician provider in Boston, MA (NPI 1013999770).
Provider details
- NPI number
- 1013999770
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 218337 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
15 Parkman St
Wac 835
Boston, MA 02114-3117
Phone: (617) 726-5533
Street-level locationGet directions
Mailing address
Po Box 9142
Charlestown, MA 02129-9142
Registry dates
- Enumerated
- 2005-11-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Steven Horowitz's NPI number?
- Steven Horowitz's National Provider Identifier (NPI) is 1013999770, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Horowitz's specialty?
- Steven Horowitz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Horowitz located?
- Steven Horowitz's practice location on file with NPPES is 15 Parkman St, Boston, MA 02114-3117.
- What is Steven Horowitz's phone number?
- The practice phone number listed in the NPPES registry for Steven Horowitz is (617) 726-5533.
- Is Steven Horowitz's NPI active?
- Yes — Steven Horowitz's NPI (1013999770) 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.