Aberdeen Group LLC

Aberdeen Group LLC was paid $1.78M by Medicaid between Jan 2018 and Dec 2024, across 2 billing codes. Its largest line is 90837, psychotherapy session, about an hour — 98% of everything it billed.

33Billing provider infoABERDEEN GROUP LLC
FORT WAYNE, IN 46845

33aNPI1124302237assigned 10/07/2011

33bProvider typePsychologist

28Total paid$1.78M

24GClaims22,808

24DCodes billed2

24AFirst – last monthJan 2018 – Dec 2024

Compared with peers

Next to other Psychologist providers in Indiana

Rank by total paid#13 of 53

Median peer was paid$395K

This provider vs. median4.5×

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 Concentration98% 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
2018	2,298	$91K
2019	2,658	$205K
2020	2,950	$232K
2021	4,392	$365K
2022	4,425	$357K
2023	3,521	$296K
2024incomplete	2,564	$232K

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	98%	22,351	10,067	$1.74M
90791	Psychiatric diagnostic evaluationPsychiatric diagnostic evaluation	2.3%	457	429	$42K

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.

From NPPES

Who's on the registration

Authorized officialDETTMER, THOMAS (PSY.D. HSPP/ OWNER)