Arielle Lyon Langer, MD, MPH

NPI 1235405309ActiveIndividual· Internal Medicine, Hematology· Boston, MA

Internal Medicine, Hematology (MD, MPH) in Boston, Massachusetts, trained at Columbia University College of Physicians and Surgeons (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $923,390 for 291 claims, against $25,748 paid for services in 2024. Agios Pharmaceuticals, Inc. reported $4,163 in payments in 2025, mostly consulting fees.

Overview

NPI	1235405309
Status	Active
Entity type	Individual
Credential	MD, MPH
Sole proprietor	No
NPI issued	Mar 22, 2012
Last updated in NPPES	Jun 19, 2019

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Hematology Primary	207RH0000X	278124	MA
Internal Medicine, Medical Oncology	207RX0202X	278124	MA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

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

Medicare services in 2024

Medicare patients	171
Services billed	303 across 13 procedure codes
Paid by Medicare	$25,748

Part D prescriptions in 2024

Prescriptions (claims)	291 · 446 30-day fills
Patients	70
Total drug cost	$923,390
Generic share	45% of claims

Medicare sources and data years

Education and affiliations

Medical school	Columbia University College of Physicians and Surgeons
Graduation year	2012
Medicare specialty	Hematology
Secondary specialties	Medical Oncology
Telehealth	Offers telehealth