Walter Koroshetz, MD
NPI 1255312211 · Vascular Neurology Physician · Boston, MA
Walter Koroshetz, MD is a Vascular Neurology Physician provider in Boston, MA (NPI 1255312211).
Provider details
- NPI number
- 1255312211
- Entity type
- Individual
- Primary specialty
- Vascular Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 50968 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2005-11-08
- Last updated
- 2025-09-11
Frequently asked questions
- What is Walter Koroshetz's NPI number?
- Walter Koroshetz's National Provider Identifier (NPI) is 1255312211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Koroshetz's specialty?
- Walter Koroshetz is listed in the NPPES registry with a primary specialty of Vascular Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Koroshetz located?
- Walter Koroshetz's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Walter Koroshetz's phone number?
- The practice phone number listed in the NPPES registry for Walter Koroshetz is (617) 726-7413.
- Is Walter Koroshetz's NPI active?
- Yes — Walter Koroshetz's NPI (1255312211) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.