Skip to content
NPISignal

Individual Healthcare Provider

Crystal Lee Mackall, MD

NPI Record: ActivePediatrics — Pediatric Hematology-Oncology
NPI1003261660
Palo Alto, California

Provider's NPPES record last updated: April 16, 2024

Overview

Entity Type
Individual Healthcare Provider
NPI
1003261660
Primary Specialty
Pediatrics — Pediatric Hematology-Oncology
Practice Location
Palo Alto, California
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, 9:58 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

    Pediatric Hematology-Oncology

    Allopathic & Osteopathic Physicians

    Primary

    A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.

    Taxonomy code 2080P0207X
  • 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
  • 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 207R00000X

Provider-Reported License Information

Pediatrics (California)
C140084
Pediatrics (California)
C140084
Internal Medicine (California)
C140084
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

725 Welch Rd

Palo Alto, California 94304-1601

Phone: (650) 497-8000

Additional Practice Location

265 Campus Dr

G3141a, Mc5456

Stanford, California 94305-5101

Phone: (650) 725-2553

Record Information

Enumeration Date
May 2, 2016
Provider's NPPES Record Last Updated
April 16, 2024
Certification Date
April 16, 2024
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 NPPES

Something 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