Willis, Kirsti

Willis, Kirsti was paid $408K by Medicaid between Oct 2019 and Dec 2024, across 5 billing codes. Its largest line is 99284, emergency room visit (serious) — 43% of everything it billed.

33Billing provider infoWILLIS, KIRSTI
NAPERVILLE, IL 60540

33aNPI1023670247assigned 07/09/2019

33bProvider typeNurse Practitioner

28Total paid$408K

24GClaims7,199

24DCodes billed5

24AFirst – last monthOct 2019 – Dec 2024

Compared with peers

Next to other Nurse Practitioner providers in Illinois

Rank by total paid#40 of 1,687

Median peer was paid$22K

This provider vs. median19×

Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.

Box 24A · Dates of service

Paid by month

Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider

By year, as a table

Year	Claims	Paid
2019	537	$21K
2020	2,146	$107K
2021	2,074	$120K
2022	1,550	$90K
2023	713	$56K
2024incomplete	179	$15K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99284	Emergency room visit (serious)Emergency department visit for the evaluation and management, high severity	43%	2,836	2,421	$175K
99285	Emergency room visit (most serious)Emergency department visit for the evaluation and management, high severity with immediate threat to life	32%	1,542	1,290	$130K
99283	Emergency room visit (moderate)Emergency department visit for the evaluation and management, moderate severity	25%	2,765	2,313	$101K
99291	Critical care, evaluation and management of the critically ill patient, first 30-74 minutes	<1%	25	14	$3K
99281	Emergency department visit for the evaluation and management, self-limited or minor	<1%	31	31	$430.50

Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.