David Phillip Erstein, MD

NPI 1245494806ActiveIndividual· Allergy & Immunology· New York, NY

Allergy & Immunology (MD) in New York, New York, trained at State University of New York Downstate Medical Center (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $69,379 for 586 claims, against $9,830 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 7 companies reporting payments in 2025, $279.06 in all, mostly food and beverage.

Overview

NPI	1245494806
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	Yes
NPI issued	Jul 14, 2008
Last updated in NPPES	Jun 29, 2015

Specialties and licenses

Taxonomy	Code	License	State
Allergy & Immunology Primary	207K00000X	250860	NY

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 - Allergy/Immunology (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	43
Services billed	1,295 across 9 procedure codes
Paid by Medicare	$9,830

Part D prescriptions in 2024

Prescriptions (claims)	586 · 690 30-day fills
Patients	127
Total drug cost	$69,379
Generic share	92% of claims

Medicare sources and data years

Education and affiliations

Medical school	State University of New York Downstate Medical Center
Graduation year	2006
Medicare specialty	Allergy/Immunology
Secondary specialties	Internal Medicine