Civic Intelligence

Western Neurosurgical Society

EIN 95-6111903 • 501(c)6 • Loma Linda, CA

Profile

To foster neurological surgery as a specialized branch of medicine and promote the knowledge and skill of those who devote themselves to neurologial surgery.

11234 Anderson St Room 2562ALoma Linda, CA 92354

westnsurg.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

25th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)6 • $500k-$1M nonprofits • Source year 2024

Liabilities / Revenue

26th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)6 • $500k-$1M nonprofits • Source year 2024

Net Margin

99th percentile

90%

Higher net margin than 99% of similar nonprofits.

501(c)6 • $500k-$1M nonprofits • Source year 2024

Top Officer Pay

49th percentile

$0

Higher top officer pay than 49% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)6 • $500k-$1M nonprofits • Source year 2024

Asset Growth

82nd percentile

22%

Faster asset growth than 82% of similar nonprofits.

501(c)6 • $500k-$1M nonprofits • Annualized from 2023 to 2024

Revenue Growth

13th percentile

-15%

Faster revenue growth than 13% of similar nonprofits.

501(c)6 • $500k-$1M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets25th percentile

Assets

Up

$695,033

Up $124,269 (+22%) from 2023

Liabilities

Flat

$0

Flat from 2023

Net Assets

Up

$695,033

Up $124,269 (+22%) from 2023

Operations
Liabilities / Revenue26th percentileNet Margin99th percentile

Revenue

Down

$138,044

Down $23,926 (-15%) from 2023

Expenses

Down

$13,775

Down $453 (-3.2%) from 2023

Net Income

Down

$124,269

Down $23,473 (-16%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth82nd percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$800K$600K$400K$200K$0Assets 2011: $222,825Liabilities 2011: $02011Assets 2012: $232,243Liabilities 2012: $02012Assets 2013: $245,166Net Assets 2013: $245,1662013Assets 2014: $278,550Net Assets 2014: $278,5502014Assets 2015: $227,700Net Assets 2015: $227,7002015Assets 2016: $256,901Liabilities 2016: $0Net Assets 2016: $256,9012016Assets 2017: $211,816Net Assets 2017: $211,8162017Assets 2018: $107,583Liabilities 2018: $0Net Assets 2018: $107,5832018Assets 2019: $323,448Liabilities 2019: $0Net Assets 2019: $323,4482019Assets 2020: $328,075Net Assets 2020: $328,0752020Assets 2021: $389,861Liabilities 2021: $0Net Assets 2021: $389,8612021Assets 2022: $423,022Liabilities 2022: $0Net Assets 2022: $423,0222022Assets 2023: $570,764Liabilities 2023: $0Net Assets 2023: $570,7642023Assets 2024: $695,033Liabilities 2024: $0Net Assets 2024: $695,0332024

Highlighted filing

2024

Assets$695,033
Liabilities$0
Net Assets$695,033
Open 2024 Filing

Operations Trend

Revenue Growth13th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$300K$200K$100K$0-$100K-$200KRevenue 2011: -$4,673Expenses 2011: $19,813Net Income 2011: -$24,4862011Revenue 2012: $21,502Expenses 2012: $12,084Net Income 2012: $9,4182012Revenue 2013: $28,322Expenses 2013: $15,399Net Income 2013: $12,9232013Revenue 2014: $50,127Expenses 2014: $16,743Net Income 2014: $33,3842014Revenue 2015: -$9,951Expenses 2015: $40,899Net Income 2015: -$50,8502015Revenue 2016: $50,569Expenses 2016: $21,368Net Income 2016: $29,2012016Revenue 2017: -$5,404Expenses 2017: $39,681Net Income 2017: -$45,0852017Revenue 2018: -$67,828Expenses 2018: $36,405Net Income 2018: -$104,2332018Revenue 2019: $267,962Expenses 2019: $52,097Net Income 2019: $215,8652019Revenue 2020: $21,825Expenses 2020: $17,198Net Income 2020: $4,6272020Revenue 2021: $72,541Expenses 2021: $10,755Net Income 2021: $61,7862021Revenue 2022: $48,426Expenses 2022: $15,265Net Income 2022: $33,1612022Revenue 2023: $161,970Expenses 2023: $14,228Net Income 2023: $147,7422023Revenue 2024: $138,044Expenses 2024: $13,775Net Income 2024: $124,2692024

Highlighted filing

2024

Revenue$138,044
Expenses$13,775
Net Income$124,269
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$695,033
Liabilities
$0
Net assets
$695,033
Revenue
$138,044
Expenses
$13,775
Net income
$124,269
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$6.95$0.00$6.95$1.38$0.14$1.24
2023Detailed filing. Detailed filing data is available for this year.$5.71$0.00$5.71$1.62$0.14$1.48
2022Detailed filing. Detailed filing data is available for this year.$4.23$0.00$4.23$0.48$0.15$0.33
2021Detailed filing. Detailed filing data is available for this year.$3.90$0.00$3.90$0.73$0.11$0.62
2020Detailed filing. Detailed filing data is available for this year.$3.28$3.28$0.22$0.17$0.05
2019Detailed filing. Detailed filing data is available for this year.$3.23$0.00$3.23$2.68$0.52$2.16
2018Detailed filing. Detailed filing data is available for this year.$1.08$0.00$1.08$0.68$0.36$1.04
2017Detailed filing. Detailed filing data is available for this year.$2.12$2.12$0.05$0.40$0.45
2016Detailed filing. Detailed filing data is available for this year.$2.57$0.00$2.57$0.51$0.21$0.29
2015Detailed filing. Detailed filing data is available for this year.$2.28$2.28$0.10$0.41$0.51
2014Detailed filing. Detailed filing data is available for this year.$2.79$2.79$0.50$0.17$0.33
2013Detailed filing. Detailed filing data is available for this year.$2.45$2.45$0.28$0.15$0.13
2012Summary only. Only limited summary data is available for this year.$2.32$0.00$0.22$0.12$0.09
2011Summary only. Only limited summary data is available for this year.$2.23$0.00$0.05$0.20$0.24
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
May 1, 2025
Return Version
2024v5.1
Gross Receipts
$456,646
Mission and Program Overview

Mission

To foster neurological surgery as a specialized branch of medicine and promote the knowledge and skill of those who devote themselves to neurologial surgery.

Balance Sheet Detail
LineBeginningEndChange
Assets
Investments in Publicly Traded Securities$206,452$470,110▲ $263,658
Savings and Temporary Cash Investments$295,812$142,295▼ $153,517
Cash and Non-Interest-Bearing Accounts-$0-
Accounts Receivable-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Land, Buildings, and Equipment, Net-$0-
Intangible Assets-$0-
Inventories for Sale or Use-$0-
Prepaid Expenses and Deferred Charges-$0-
Total Assets$570,764$695,033▲ $124,269
Other Assets Total$68,500$82,628▲ $14,128
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$342,214$437,107▲ $94,893
Net Assets With Donor Restrictions$228,550$257,926▲ $29,376
Total Net Assets Fund Balance$570,764$695,033▲ $124,269
Total Liabilities and Net Assets / Fund Balance$570,764$695,033▲ $124,269

Asset Categories

AssetBook ValueDepreciationBasis
Other Assets Org$82,628--
Compensation and Service Providers
Top Officer Pay49th percentile

Board Members and Trustees

NameTitle
Marco LeePast President
Odette HarrisPresident
Praveen MummaneniVice President
Charles NussbaumHistorian
Justin DyeSecty/treas
Revenue and Support

Revenue Composition

Contributions and Grants
$42,955
Program Service Revenue
$0
Investment Income
$19,340
Other Revenue
$75,749
All Other Contributions
$14,300
Change in Net Assets
$124,269
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$13,775
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Fees for Services Accounting---$3,193
Other Expenses---$148
All Other Expenses---$33
Total Functional Expenses$0$0$0$13,775
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$394,351
Fundraising Direct Expenses$318,602
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Annual Conference$394,351$394,351$102,012$292,339
Total Events$394,351$394,351$318,602$75,749
Political and Lobbying Activity
Political campaign activity
No
In-house lobbying only
Yes
Subject to proxy tax
Yes
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section B, Line 11B

“No review was or will be conducted.”

Form 990, Part VI, Section C, Line 19

“Governing documents are available on the society's website.”

Filing and Contact Details

Filer

Filer Name
Western Neurosurgical Society
EIN
95-6111903
Phone
9095586388
Address
11234 ANDERSON ST ROOM 2562A, LOMA LINDA, CA 92354

Signing Officer

Name
Justin Dye
Title
Secty/treas
Signed
2025-05-01
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Justin Dye
Formed
1966
Legal Domicile
CA
Voting Board Members
5
Independent Board Members
6
Employees
0

Preparer

Firm
Viles & Viles LLP
Address
5450 Telegraph Rd Suite 100, Ventura, CA 93003
Preparer
Andrew D Viles
Phone
8055041001
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This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0No review was or will be conducted.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1GOVERNING DOCUMENTS ARE AVAILABLE ON THE SOCIETY'S WEBSITE.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section B, Line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section C, Line 19
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ReturnHeader/BuildTS02025-03-06 01:10:19Z
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ReturnHeader/BusinessOfficerGrp/SignatureDt02025-05-01
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0WESTERN NEUROSURGICAL SOCIETY
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ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0922999056
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ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt05450 Telegraph Rd Suite 100
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Ventura
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ReturnHeader/PreparerPersonGrp/PhoneNum08055041001
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0ANDREW D VILES
ReturnHeader/ReturnTs02025-05-01T15:00:14-07:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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