O'brien, Dennis

O'brien, Dennis was paid $282K by Medicaid between Dec 2019 and Dec 2024, across 3 billing codes. Its largest line is 90837, psychotherapy session, about an hour — 93% of everything it billed.

33Billing provider infoO'BRIEN, DENNIS
CHICAGO, IL 60626

33aNPI1760026231assigned 10/29/2019

33bProvider typeClinical Social Worker

28Total paid$282K

24GClaims3,817

24DCodes billed3

24AFirst – last monthDec 2019 – Dec 2024

Compared with peers

Next to other Clinical Social Worker providers in Illinois

Rank by total paid#68 of 703

Median peer was paid$25K

This provider vs. median11×

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	61	$3K
2020	1,106	$55K
2021	728	$54K
2022	712	$58K
2023	91	$7K
2024incomplete	1,119	$105K

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	93%	3,556	919	$262K
90834	Psychotherapy session, about 45 minutesPsychotherapy, 45 minutes with patient	6.8%	244	55	$19K
90791	Psychiatric diagnostic evaluationPsychiatric diagnostic evaluation	<1%	17	16	$1K

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.