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AMERICAN BOARD OF PERIODONTOLOGY INC

EIN 94-6084734 CHICAGO, IL

Revenue 2024
$2,270,178
Expenses 2024
$2,191,184

Program services were 65.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E34Z
Classification
2000
Street
737 N MICHIGAN AVE STE 800

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

TO CERTIFY THE ACHIEVEMENT OF IN-DEPTH KNOWLEDGE AND PROFICIENCY IN THE FULL SCOPE OF PERIODONTOLOGY AND DENTAL IMPLANT SURGERY THROUGH EXAMINATION AND CONTINUOUS CERTIFICATION. THE LONG TERM VISION OF THE BOARD IS THAT ALL PERIODONTISTS ACHIEVE BOARD CERTIFICATION AND THAT DIPLOMATES OF THE BOARD ARE UNIVERSALLY RECOGNIZED BY THE PUBLIC, THE DENTAL PROFESSION, THE MEDICAL COMMUNITY AND THIRD PARTY PAYERS AS THE PREFERRED PROVIDERS OF PERIODONTAL AND DENTAL IMPLANT SURGICAL CARE.

Activities or mission (Part I)

TO CERTIFY THE ACHIEVEMENT OF IN-DEPTH KNOWLEDGE AND PROFICIENCY IN THE FULL SCOPE OF PERIODONTOLOGY AND DENTAL IMPLANT SURGERY THROUGH EXAMINATION AND CONTINUING CERTIFICATION.

  • THE PRIMARY PROGRAMS OFFERED BY THE ASSOCIATION ARE CERTIFICATION, MAINTENANCE OF CERTIFICATION, AND REGISTRATION OF CREDENTIALS. EACH YEAR, THE ORGANIZATION ASSESSES APPROXIMATELY 204 CANDIDATES FOR BOARD CERTIFICATION THROUGH A TWO STAGE EXAMINATION PROCESS. THE INITIAL EXAM, A WRITTEN EXAM, IS ADMINISTERED IN JANUARY. UPON SUCCESSFULLY PASSING THAT EXAM, THE CANDIDATE IS ELIGIBLE TO BE CONSIDERED FOR BOARD CERTIFICATION WHICH IS ASSESSED THROUGH ORAL EXAMINATIONS CONDUCTED IN LATE APRIL OR EARLY MAY OF THE FOLLOWING YEAR OVER A 5 DAY PERIOD. UPON EARNING CERTIFICATION, INDIVIDUALS EARN DIPLOMATE STATUS. DIPLOMATES ARE REQUIRED TO REGISTER THEIR CREDENTIALS ANNUALLY WITH THE BOARD AND TO RECERTIFY THEIR CREDENTIAL EVERY SIX YEARS. AS OF DECEMBER 31, 2024, THERE WERE APPROXIMATELY 3,663 ACTIVE DIPLOMATES AND 604 RETIRED DIPLOMATES.

    Expenses $1,438,450 · Grants $216,188 · Revenue $2,008,175

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.

  • ANGELA PALAIOLOGOU-GALLIS

    PRESIDENT/IMMED PAST PRESIDENT

    Total calculated
    $2,800
    From this org
    $2,800
    From related orgs
    $0
    Other
    $0
    Hours/week
    5

  • ANGELO MARIOTTI

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.5

  • BRYAN FRANTZ

    SECRETARY/TREASURER

    Total calculated
    $2,400
    From this org
    $2,400
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • CHARLES POWELL

    INTERIM DIRECTOR

    Total calculated
    $66,600
    From this org
    $66,600
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • CRAIG YONEMURA

    DIRECTOR

    Total calculated
    $2,000
    From this org
    $2,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • DIMITRIS TATAKIS

    DIRECTOR

    Total calculated
    $1,400
    From this org
    $1,400
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • DOUGLAS DIXON

    DIRECTOR

    Total calculated
    $2,800
    From this org
    $2,800
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • LEENA PALOMO

    DIRECTOR/VICE PRESIDENT

    Total calculated
    $2,000
    From this org
    $2,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • MARY BETH NEILL

    DIRECTOR

    Total calculated
    $2,200
    From this org
    $2,200
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • NICOLAAS GEURS

    DIRECTOR

    Total calculated
    $2,000
    From this org
    $2,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • PAUL LUEPKE

    VICE PRESIDENT/PRESIDENT

    Total calculated
    $2,400
    From this org
    $2,400
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • RICHARD KAO

    DIRECTOR

    Total calculated
    $2,400
    From this org
    $2,400
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • ROBERT FAIELLA

    IMMEDIATE PAST PRESIDENT/INTERIM DIRECTOR

    Total calculated
    $2,000
    From this org
    $2,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • RODRIGO NEIVA

    DIRECTOR

    Total calculated
    $1,600
    From this org
    $1,600
    From related orgs
    $0
    Other
    $0
    Hours/week
    0.5

  • EILEEN LORANGER

    EXECUTIVE DIRECTOR

    Total calculated
    $225,113
    From this org
    $212,917
    From related orgs
    $0
    Other
    $12,196
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $199,585
    Bonus
    $13,332
    Other
    $0
    Deferred
    $8,023
    Nontaxable benefits
    $4,173
    Filer's total
    $225,113

  • CATHERINE ENGLEHART

    ASSOCIATE EXECUTIVE DIRECTOR

    Total calculated
    $140,420
    From this org
    $135,044
    From related orgs
    $0
    Other
    $5,376
    Hours/week
    40

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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $2,270,178
    Expenses
    $2,191,184
    Contributions
    $67,865
    Grants paid
    $216,188
  • 2023
    Revenue
    $2,007,862
    Expenses
    $1,775,621
    Contributions
    $12,395
    Grants paid
    $0
  • 2022
    Revenue
    $1,941,549
    Expenses
    $1,463,753
    Contributions
    $23,173
    Grants paid
    $0

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
    $2,192,309
    Expenses
    $1,344,211
    Assets (EOY)
    $4,219,173

  • 2020 · 990

    Revenue
    $1,463,245
    Expenses
    $874,598
    Assets (EOY)
    $3,288,347

  • 2019 · 990

    Revenue
    $1,555,438
    Expenses
    $1,328,689
    Assets (EOY)
    $2,409,229

  • 2018 · 990

    Revenue
    $1,586,415
    Expenses
    $1,183,431
    Assets (EOY)
    $2,117,054

  • 2018 · 990

    Revenue
    $1,586,415
    Expenses
    $1,183,431
    Assets (EOY)
    $2,117,054

  • 2017 · 990

    Revenue
    $1,271,140
    Expenses
    $1,237,811
    Assets (EOY)
    $1,732,283

  • 2016 · 990

    Revenue
    $1,165,908
    Expenses
    $1,028,616
    Assets (EOY)
    $1,683,834

  • 2015 · 990

    Revenue
    $1,110,261
    Expenses
    $986,641
    Assets (EOY)
    $1,548,110

  • 2014 · 990

    Revenue
    $967,465
    Expenses
    $891,921
    Assets (EOY)
    $1,424,542

  • 2013 · 990

    Revenue
    $942,275
    Expenses
    $804,840
    Assets (EOY)
    $1,343,257

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

Where these grants went next →

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 26 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.