Sally Arai, MD

NPI 1881739530ActiveIndividual· Internal Medicine, Hematology· Stanford, CA

Internal Medicine, Hematology (MD) in Stanford, California, trained at Geisel School of Medicine at Dartmouth (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $1,413,339 for 532 claims, against $34,056 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 2 companies reporting payments in 2025, $1,011 in all, mostly travel and lodging.

Overview

NPI	1881739530
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Feb 20, 2007
Last updated in NPPES	Apr 15, 2024
Certified by provider	Apr 15, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Hematology Primary	207RH0000X	G87299	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Hematology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	73
Services billed	397 across 14 procedure codes
Paid by Medicare	$34,056

Part D prescriptions in 2024

Prescriptions (claims)	532 · 758 30-day fills
Patients	53
Total drug cost	$1,413,339
Generic share	79% of claims

Medicare sources and data years

Education and affiliations

Medical school	Geisel School of Medicine at Dartmouth
Graduation year	1991
Medicare specialty	Hematology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth