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AMERICAN CLINICAL NEUROPHYSIOLOGY SOCIETY INC

EIN 41-6035948 MILWAUKEE, WI

Revenue 2024
$1,463,152
Expenses 2024
$1,470,989

Program services were 73.3% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E03
Classification
2800
Street
555 E WELLS ST STE 1100 # 110

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

A PROFESSIONAL ASSOCIATION DEDICATED TO FOSTERING EXCELLENCE IN CLINICAL NEUROPHYSIOLOGY AND FURTHERING THE UNDERSTANDING OF CENTRAL AND PERIPHERAL NERVOUS SYSTEM FUNCTION IN HEALTH AND DISEASE THROUGH EDUCATION, RESEARCH, AND THE PROVISION OF A FORUM FOR DISCUSSION AND INTERACTION.

  • ANNUAL MEETING: THE ANNUAL MEETING PROVIDES A SOLID REVIEW OF THE FUNDAMENTALS AND THE LATEST SCIENTIFIC ADVANCES IN BOTH "CENTRAL AND "PERIPHERAL" CLINICAL NEUROPHYSIOLOGY. PRESENTATIONS AT THE ANNUAL MEETING & COURSES ARE GIVEN BY LEADING EXPERTS IN THE FIELD AND HAVE VALUE FOR HEALTH CARE PROFESSIONALS WHO UTILIZE CLINICAL NEUROPHYSIOLOGY.

    Expenses $706,497 · Grants $21,243 · Revenue $385,983

  • JOURNAL: ACNS PUBLISHES AN OFFICIAL JOURNAL TO ADVANCE THE PRACTICE OF CLINICAL NEUROPHYSIOLOGY. THE JOURNAL OF CLINICAL NEUROPHYSIOLOGY FEATURES ORIGINAL RESEARCH ARTICLES THAT COVER KEY CONCERNS IN ELECTROENCEPHALOGRAPHY AND EVOKED POTENTIALS, CLINICAL NEUROLOGY, NEUROSURGERY, PSYCHIATRY, AND EXPERIMENTAL RESEARCH ON THE CENTRAL NERVOUS SYSTEM. HALF OF EACH ISSUE IS DEVOTED TO TOPICAL REVIEWS ON A SUBJECT OF INTEREST TO EEG SPECIALISTS

    Expenses $141,599 · Revenue $420,208

  • COURSE: THESE COMPREHENSIVE COURSES PROVIDE PRACTICAL CLINICAL AND UP-TO-DATE RESEARCH INFORMATION ON THE RAPIDLY EVOLVING AREAS IN CLINICAL NEUROPHYSIOLOGY

    Expenses $54,832 · Revenue $49,405

  • Expenses $175,066 · Grants $24,090 · Revenue $444,044

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Marcus C Ng MD Frcpc Cscn Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Jaime R Lopez MD Facns

    EX-OFFICIO

    Total calculated
    $0
    Hours/week
    1
  • Meriem Bensalem-Owen MD Facns

    PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Adriana Bermeo-Ovalle MD Facns

    TREASURER

    Total calculated
    $0
    Hours/week
    5
  • Jun T Park MD Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Nicholas S Abend MD Msce Facns

    1ST VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Ruple S Laughlin MD Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Lynn Liu MD Ms Hpe Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Saurabh R Sinha MD Phdfacns

    IMMEDIATE PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Elizabeth Gerard MD Facnc

    SECRETARY

    Total calculated
    $0
    Hours/week
    5
  • Courtney J Wusthoff MD Facns

    2ND VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Ioannis Karakis Mdphdfacns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Stephan U Schuele MD MPH Facns

    JOURNAL EDITOR

    Total calculated
    $0
    Hours/week
    5
  • Birgit Frauscher MD PhD Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Rajdeep Singh MD Ms Facns Faes

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Jeffrey Tenney

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Olga Selioutski Do Facns Faes Fac

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Lawrence J Hirsch MD Faan

    2ND VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1
  • Michael McGarvey MD Facns

    COUNCIL MEMBER

    Total calculated
    $0
    Hours/week
    1

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $1,463,152
    Expenses
    $1,470,989
    Contributions
    $43,594
    Grants paid
    $45,333
  • 2023
    Revenue
    $1,330,783
    Expenses
    $1,338,365
    Contributions
    $50,889
    Grants paid
    $49,848
  • 2022
    Revenue
    $1,404,625
    Expenses
    $1,477,907
    Contributions
    $140,518
    Grants paid
    $57,886

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $1,274,831
    Expenses
    $927,583
    Assets (EOY)
    $2,929,901
  • 2020 · 990

    Revenue
    $1,097,298
    Expenses
    $811,735
    Assets (EOY)
    $2,606,127
  • 2019 · 990

    Revenue
    $1,308,513
    Expenses
    $1,258,366
    Assets (EOY)
    $2,005,033
  • 2018 · 990

    Revenue
    $1,115,002
    Expenses
    $1,119,832
    Assets (EOY)
    $1,949,640
  • 2017 · 990

    Revenue
    $1,922,306
    Expenses
    $1,710,361
    Assets (EOY)
    $2,079,982
  • 2016 · 990

    Revenue
    $1,068,402
    Expenses
    $953,591
    Assets (EOY)
    $1,804,520
  • 2015 · 990

    Revenue
    $949,013
    Expenses
    $814,414
    Assets (EOY)
    $1,596,283
  • 2014 · 990

    Revenue
    $1,078,047
    Expenses
    $783,552
    Assets (EOY)
    $1,313,782
  • 2013 · 990

    Revenue
    $850,563
    Expenses
    $701,605
    Assets (EOY)
    $1,161,306
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $740,033
    Assets (EOY)
    $961,912

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 29 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.