Katrina Klaus, D.O.

NPI 1295841427ActiveIndividual· Internal Medicine· Wellesley, MA

Internal Medicine (D.O.) in Wellesley, Massachusetts, trained at Midwestern University, Chicago College of Osteopathic Med (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $99,088 for 1,949 claims, against $22,717 paid for services in 2024. Inspire Medical Systems, Inc. reported $14.21 in payments in 2025, mostly food and beverage.

Overview

NPI	1295841427
Status	Active
Entity type	Individual
Credential	D.O.
Sole proprietor	No
NPI issued	Aug 21, 2006
Last updated in NPPES	Nov 16, 2020
Certified by provider	Nov 16, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	230582	MA
Internal Medicine	207R00000X	RT 1326	NH

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 - Internal Medicine (MA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	151
Services billed	1,024 across 105 procedure codes
Paid by Medicare	$22,717

Part D prescriptions in 2024

Prescriptions (claims)	1,949 · 3,538 30-day fills
Patients	243
Total drug cost	$99,088
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	Midwestern University, Chicago College of Osteopathic Med
Graduation year	2004
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth