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NPISignal

Individual Healthcare Provider

John W Graef, M.D.

NPI Record: ActivePediatrics — Medical Toxicology
NPI1982680575
Boston, Massachusetts

Provider's NPPES record last updated: July 13, 2026

Overview

Entity Type
Individual Healthcare Provider
NPI
1982680575
Primary Specialty
Pediatrics — Medical Toxicology
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 identified

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 17, 2026, 11:00 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

Not checked

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.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Pediatrics

    Medical Toxicology

    Allopathic & Osteopathic Physicians

    Primary

    Medical toxicologists are physicians that specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings, and environmental and workplace exposures.

    Taxonomy code 2080T0002X
  • Pediatrics

    Allopathic & Osteopathic Physicians

    A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

    Taxonomy code 208000000X
  • Hospitalist

    Allopathic & Osteopathic Physicians

    Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

    Taxonomy code 208M00000X

Provider-Reported License Information

Pediatrics (Massachusetts)
33948
Pediatrics (Massachusetts)
33948
Hospitalist (Massachusetts)
33948
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

333 Longwood Ave

Boston, Massachusetts 02115-5711

Phone: (617) 355-8263

Record Information

Enumeration Date
December 16, 2005
Provider's NPPES Record Last Updated
July 13, 2026
NPISignal NPPES Dataset
August 2026

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