Haley Peterson Hostetler, M.D.

NPI 1982022265ActiveIndividual· Allergy & Immunology· Portland, OR

Allergy & Immunology (M.D.) in Portland, Oregon, trained at Oregon Health Sciences University School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $106,005 for 50 claims, against $3,171 paid for services in 2024. Ars Pharmaceuticals Operations, Inc. was the largest of 4 companies reporting payments in 2025, $223.95 in all, mostly food and beverage.

Overview

NPI	1982022265
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	Apr 3, 2014
Last updated in NPPES	Jan 20, 2023
Certified by provider	Jan 20, 2023

Specialties and licenses

Taxonomy	Code	License	State
Allergy & Immunology Primary	207K00000X	MD211432	OR
Internal Medicine	207R00000X	MD211432	OR
Pediatrics	208000000X	MD211432	OR

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 (OR)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	15
Services billed	34 across 6 procedure codes
Paid by Medicare	$3,171

Part D prescriptions in 2024

Prescriptions (claims)	50 · 69 30-day fills
Patients	12
Total drug cost	$106,005
Generic share	44% of claims

Medicare sources and data years

Education and affiliations

Medical school	Oregon Health Sciences University School of Medicine
Graduation year	2014
Medicare specialty	Allergy/Immunology
Secondary specialties	Internal Medicine, Pediatric Medicine
Telehealth	Offers telehealth