401(k) Β· DOL Form 5500 Β· 2023

Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan

Data updated 2026-05-15

$2M
Total assets
51
Participants
31th
Percentile by assets
$40,210
Avg per participant

Sponsored by Oakbrook Surgical Centre, Inc Β· Illinois Β· Healthcare & Social Assistance

What the 2023 filing shows

Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan holds $2M for 51 participants - about $40,210 per participant, in the lower half of filed plans by assets, up 16.6% over the 2023 plan year.

$2M
total plan assets (2023 EOY)
51
covered participants
31th
percentile by assets (of 126,618 plans)
$40,210
avg assets per participant
State
Industry
Healthcare & Social Assistance

401(k) Β· DOL Form 5500 Β· 2023

What the Filing Says About Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan

Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan is a 401(k) retirement plan sponsored by Oakbrook Surgical Centre, Inc, headquartered in Illinois. According to the U.S. Department of Labor's 2023 Form 5500 filing, the plan reports $2M in total end-of-year assets and covers 51 participants across the Healthcare & Social Assistance industry. The sponsor's EIN on file with the U.S. Department of Labor is 363317971, and the plan has been effective since 1996-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets grew sharply from $2M at the beginning of 2023 to $2M at year-end - up 16.6%. Net assets (after liabilities) closed the year at $2M, with reported net income of $292K driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 1 prior plan-year filing from the same sponsor shown below.

Across the 2 plan years Oakbrook Surgical Centre, Inc has on file with PlainRetire (2022-2023), sponsor-wide plan assets have moved from $2M to $2M, a gain of 16.6%, while reported participants moved from 62 to 51 (-17.7%). Year-by-year, sponsor-wide filings show: 2022 - $2M in assets across 1 plan covering 62 participants; 2023 - $2M in assets across 1 plan covering 51 participants.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows, a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

How the percentile is calculated: we count every plan that filed a 2023 Form 5500 with a reported end-of-year asset figure (126,618 plans), rank Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan against all of them by total assets, and report the share of those plans it outranks. A plan reporting no asset figure for the year is excluded from the ranking rather than assumed to be zero.

Financial Summary (2023)

Total Assets (Beginning of Year)$2M
Total Assets (End of Year)$2M
Net Assets (End of Year)$2M
Net Income$292K
Plan Type401(k)
Employer EIN363317971
Plan Effective Date1996-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Oakbrook Surgical Centre, Inc)

Year Plans Participants Total Assets
2022 1 62 $2M
2023 1 51 $2M

Nearby 401(k) Plans in Illinois

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Frequently Asked Questions

How much money is in the Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan?
As of the 2023 Form 5500 filing, Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan holds $2M in total assets with 51 participants. It is sponsored by Oakbrook Surgical Centre, Inc.
What type of plan is Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan?
Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan is a 401(k) plan. It has been effective since 1996-01-01. The plan is filed with the U.S. Department of Labor under EIN 363317971.
Who sponsors the Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan?
Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan is sponsored by Oakbrook Surgical Centre, Inc, located in Illinois. The sponsor's EIN is 363317971 and the plan operates in the Healthcare & Social Assistance industry.
How did Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan perform in 2023?
Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan grew sharply - up 16.6% during 2023, moving from $2M to $2M in total assets. Net income was $292K.

What this filing means

Ways to act on Oakbrook Medical and Surgical Centre, Inc. 401(k) P/S Plan's numbers.

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 363317971.

Reference: IRS Publication 560, Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B, Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.

Every figure on PlainRetire is rendered directly from the Department of Labor's Form 5500 annual return filings, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-15.