Maltby, Genevieve

Maltby, Genevieve was paid $1.46M by Medicaid between Jul 2021 and Dec 2024, across 2 billing codes. Its largest line is 90837, psychotherapy session, about an hour — 96% of everything it billed.

33Billing provider infoMALTBY, GENEVIEVE
ROCKFORD, IL 61107

33aNPI1649813452assigned 10/24/2019

33bProvider typeClinical Social Worker

28Total paid$1.46M

24GClaims13,517

24DCodes billed2

24AFirst – last monthJul 2021 – Dec 2024

Compared with peers

Next to other Clinical Social Worker providers in Illinois

Rank by total paid#10 of 703

Median peer was paid$25K

This provider vs. median59×

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.

Auditor's notes

Automated statistical signals. Not evidence of fraud — how these are computed.

Single-Code Concentration96% of spending on code 90837 with only 2 total codes billed. Highly concentrated billing profile.

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
2021	204	$19K
2022	3,663	$383K
2023	4,419	$455K
2024incomplete	5,231	$608K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
90837	Psychotherapy session, about an hourPsychotherapy, 53 minutes with patient	96%	12,913	5,332	$1.40M
90791	Psychiatric diagnostic evaluationPsychiatric diagnostic evaluation	4.5%	604	583	$65K

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.