Individual Healthcare Provider
Walter Joseph Koroshetz, MD
Provider's NPPES record last updated: July 13, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1255312211
- Primary Specialty
- Psychiatry & Neurology — Vascular Neurology
- Practice Location
- Boston, Massachusetts
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 18, 2026, 3:01 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Psychiatry & Neurology
Vascular Neurology
Allopathic & Osteopathic Physicians
Vascular Neurology is a subspecialty in the evaluation, prevention, treatment and recovery from vascular diseases of the nervous system. This subspecialty includes the diagnosis and treatment of vascular events of arterial or venous origin from a large number of causes that affect the brain or spinal cord such as ischemic stroke, intracranial hemorrhage, spinal cord ischemia and spinal cord hemorrhage.
Taxonomy code 2084V0102X Internal Medicine
Allopathic & Osteopathic Physicians
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy code 207R00000XInternal Medicine
Nephrology
Allopathic & Osteopathic Physicians
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Taxonomy code 207RN0300X
Provider-Reported License Information
- Psychiatry & Neurology (Massachusetts)
- 50968
- Internal Medicine (Massachusetts)
- 50968
- Internal Medicine (Massachusetts)
- 50968
Practice Locations
Practice Location
55 Fruit St
Vbk 915
Boston, Massachusetts 02114-2621
Phone: (617) 726-7413
Record Information
- Enumeration Date
- November 8, 2005
- Provider's NPPES Record Last Updated
- July 13, 2026
- NPISignal NPPES Dataset
- August 2026
See Something Wrong?
Incorrect provider information
Everything on this page comes directly from the NPPES data CMS publishes. NPISignal cannot edit a provider's record — only the provider or organization can, directly through NPPES.
Update a record through NPPESSomething wrong with this page?
If NPISignal is displaying this data incorrectly — a formatting error, a broken link, a mismatch with the source file — let us know.
Report a display issue