Individual Healthcare Provider
Michael Job Landzberg, MD
Provider's NPPES record last updated: November 18, 2020
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1124019864
- Primary Specialty
- Internal Medicine — Adult Congenital Heart Disease
- 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, 12:33 AM 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
Internal Medicine
Adult Congenital Heart Disease
Allopathic & Osteopathic Physicians
A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension.
Taxonomy code 207RA0002X Specialist
Other Service Providers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Taxonomy code 174400000X
Provider-Reported License Information
- Internal Medicine (Massachusetts)
- 71141
- Specialist (Massachusetts)
- 71141
Practice Locations
Practice Location
300 Longwood Ave
Boston, Massachusetts 02115-5724
Phone: (617) 355-2793
Record Information
- Enumeration Date
- November 2, 2005
- Provider's NPPES Record Last Updated
- November 18, 2020
- Certification Date
- November 17, 2020
- NPISignal NPPES Dataset
- August 2026
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