Medicaid Provider SpendingClaims paid 2018–2024 · HHS public file
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Agency

Cornerstone Montgomery, INC.

Cornerstone Montgomery, INC. was paid $1.36M by Medicaid between Dec 2022 and Sep 2024, across 1 billing code. Its largest line is H0040, Assertive community treatment program, per diem — 100% of everything it billed.

33Billing provider infoCORNERSTONE MONTGOMERY, INC.
BETHESDA, MD 20814
33aNPI1932834900assigned 07/22/2022
28Total paid$1.36M
24GClaims810
24DCodes billed1
24AFirst – last monthDec 2022 – Sep 2024
Compared with peers

Next to other Community/Behavioral Health Agency providers in Maryland

Rank by total paid#310 of 794
Median peer was paid$786K
This provider vs. median1.7×

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 Concentration100% of spending on code H0040 with only 1 total codes billed. Highly concentrated billing profile.
Entity ProliferationAuthorized official OSTROWSKI, MICHAEL controls 11+ related entities in our dataset. Read more
Box 24A · Dates of service

Paid by month

$0$50K$100K2018201920202021202220232024
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
YearClaimsPaid
202217$27K
2023484$786K
2024incomplete309$551K
Box 24 · Service lines

What it billed for

CodeServiceShareClaimsBene. recordsPaid
H0040 Assertive community treatment program, per diem 100% 810 809 $1.36M

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 officialOSTROWSKI, MICHAEL (BILLING MANAGER)
Same official

Other billing entities under OSTROWSKI, MICHAEL

Full network →
ProviderLocationPaid
Cornerstone Montgomery, INC.Bethesda, MD$4.21M
Cornerstone Montgomery, INC.Prince Frederick, MD$1.45M
Cornerstone Montgomery, INC.Leonardtown, MD$573K
Cornerstone Montgomery, INC.Prince Frederick, MD$568K
Cornerstone Montgomery, INC.Leonardtown, MD$479K
Cornerstone Montgomery, INC.Waldorf, MD$465K
Cornerstone Montgomery, INC.Hughesville, MD$386K
Cornerstone Montgomery, INC.Waldorf, MD$376K
Cornerstone Montgomery, INC.Rockville, MD$244.70
Cornerstone Montgomery, INC.Silver Spring, MD$0.00
Cornerstone Montgomery, INC.Bethesda, MD$0.00

Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.