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RIMROCK FOUNDATION

EIN 81-0302870 BILLINGS, MT

Revenue 2024
$13,347,391
Expenses 2024
$13,503,205

Program services were 85.1% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
Classification
1000
Street
1231 N 29TH ST

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

WE CREATE OPPORTUNITY FOR THOSE IMPACTED BY ADDICTION AND MENTAL ILLNESS THROUGH INNOVATIVE, COMPASSIONATE, AND LIFE CHANGE CARE.

Activities or mission (Part I)

COST-EFFECTIVE TREATMENT AND REHABILITATION FOR ADULTS AND ADOLESCENTS.

  • TREATMENT SERVICES ARE PROVIDED THROUGH THE FOLLOWING THERAPEUTIC LEVELS OF CARE: MEDICAL DETOXIFICATION, INPATIENT, PARTIAL HOSPITALIZATION, RESIDENTIAL, CRISIS STABILIZATION, INTENSIVE OUTPATIENT, OUTPATIENT CARE AND PACT SERVICES. THESE LEVELS OF CARE AND THERAPEUTIC SERVICES ARE ORGANIZED TO DELIVER A STATE OF ART CONTINUUM OF CARE IN WHICH PATIENTS AND THEIR FAMILIES RECEIVE THE BROADEST RANGE OF SERVICES NECESSARY, COORDINATED IN AN INDIVIDUALIZED RECOVERY PROGRAM FOR EACH PATIENT AND FAMILY MEMBER. RIMROCK FOUNDATION HAS PIONEERED THE ADVANCED INTEGRATED MODEL OF ADDICTION TREATMENT, WHICH COMBINES THE BEST APPROACHES AVAILABLE TODAY TO TREAT PATIENTS WITH ADDICTION PROBLEMS AND CONCURRENT MENTAL ILLNESS. RIMROCK'S SINGLE GOAL IS TO ASSURE THE HIGHEST QUALITY OF CARE, USING STATE OF THE ART APPROACHES, FOR THE PURPOSE OF ENHANCING PATIENT OUTCOMES. TO ACHIEVE THIS, THE ORGANIZATION REQUIRES TRAINED PROFESSIONALS REPRESENTING ADDICTION, MEDICINE AND MENTAL HEALTH DISCIPLINES, WORKING AS A COLLABORATIVE TEAM IN WHICH EACH DISCIPLINE CONTRIBUTES AND COMMUNICATES. EACH MEMBER OF THE ORGANIZATION'S STAFF IS EXPECTED TO BE COMMITTED TO PROVIDING QUALITY CARE AND ACTIVELY PARTICIPATING IN ORGANIZATION WIDE EFFORTS TO IMPROVE PATIENT CARE.

    Expenses $8,028,086 · Revenue $6,806,697

  • RIMROCK FOUNDATION PROVIDES DETOXIFICATION SERVICES TO OVER 186 CLIENTS GENERATING $348,251 OF WHICH DISCOUNTS ARE $572,357 AND FREE CARE OF $192,380 WERE PROVIDED TO CLIENTS WHO WERE DETERMINED UNABLE TO PAY FOR THE SERVICES. MANY TIMES THESE CLIENTS WOULD TRANSFER TO INPATIENT TREATMENT FOR ADULTS. INPATIENT SERVICES WERE PROVIDED TO 551 CLIENTS WITH REVENUES OF $9,382,556 WITH DISCOUNTS OF $6,277,949 AND FREE CARE OF $0 PROVIDED TO CLIENTS.

    Expenses $2,540,360 · Revenue $3,781,498

  • RIMROCK FOUNDATION PROVIDES SUBSTANCE ABUSE TREATMENT FOR MEN AT THEIR WHITE BIRCH NORTH AND SOUTH FACILITIES IN BILLINGS, MT. A TOTAL OF 118 CLIENTS WERE SERVED IN 2024. REVENUES TOTALED $2,372,005 OF WHICH $1,667,953 WERE DISCOUNTED. THESE CLIENTS ARE LOWER INCOME AND QUALIFY FOR MEDICAID.

    Expenses $733,767 · Revenue $1,512,600

  • RIMROCK FOUNDATION PROVIDES SUBSTANCE ABUSE TREATMENT FOR WOMEN AT THEIR ADA'S HOUSE FACILITY IN BILLINGS, MT. A TOTAL OF 71 CLIENTS WERE SERVED IN 2024. REVENUES TOTALED $1,674,271 OF WHICH $1,131,023 WERE DISCOUNTED. THESE CLIENTS ARE LOWER INCOME AND QUALIFY FOR MEDICAID.

    Expenses $182,931 · Revenue $504,200

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.

  • ALLEN HALTER

    CHAIR

    Total calculated
    $0
    Hours/week
    1

  • MICHELLE PINNOW

    SECRETARY/TREASURER

    Total calculated
    $0
    Hours/week
    1

  • BOBBI BLAIN

    DIRECTOR (TERMED JUNE 2024)

    Total calculated
    $0
    Hours/week
    1

  • DANIEL BROOKS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • CATHY CULLEN-KUHR

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • JIM ECKENROAD

    DIRECTOR (TERMED JUNE 2024)

    Total calculated
    $0
    Hours/week
    1

  • KIM EDINGER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • SHANE HEIGIS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • BILL LAMDIN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • ADAM LAUWERS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • JANI MCCALL

    DIRECTOR (TERMED MARCH 2024)

    Total calculated
    $0
    Hours/week
    1

  • BRANDON SCALA

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • STEVEN SMALL

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • STACY ZINN-BRITTAIN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • JEFFREY KELLER

    CEO

    Total calculated
    $166,048
    From this org
    $160,610
    From related orgs
    $0
    Other
    $5,438
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $160,610
    Bonus
    $0
    Other
    $0
    Deferred
    $0
    Nontaxable benefits
    $5,438
    Filer's total
    $166,048

  • DENNIS WIZEMAN

    SENIOR DIRECTOR OF FINANCE

    Total calculated
    $65,174
    From this org
    $61,920
    From related orgs
    $0
    Other
    $3,254
    Hours/week
    40

  • COLLEEN NUERENBERGER

    CFO (THRU FEB 2024)

    Total calculated
    $0
    Hours/week
    40

  • HEATHER SWETEN

    REGISTERED NURSE

    Total calculated
    $129,898
    From this org
    $124,460
    From related orgs
    $0
    Other
    $5,438
    Hours/week
    40

  • SHARON MULVEHILL

    CMO

    Total calculated
    $229,300
    From this org
    $229,300
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $229,300
    Bonus
    $0
    Other
    $0
    Deferred
    $0
    Nontaxable benefits
    $0
    Filer's total
    $229,300

  • SARAH STRITTMATER

    REGISTERED NURSE

    Total calculated
    $107,184
    From this org
    $100,446
    From related orgs
    $0
    Other
    $6,738
    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
    $13,347,391
    Expenses
    $13,503,205
    Contributions
    $49,884
    Grants paid
    $0
  • 2023
    Revenue
    $9,776,779
    Expenses
    $15,543,138
    Contributions
    $36,450
    Grants paid
    $0
  • 2022
    Revenue
    $15,557,369
    Expenses
    $16,083,619
    Contributions
    $2,479,824
    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
    $16,747,690
    Expenses
    $15,595,571
    Assets (EOY)
    $13,752,324

  • 2020 · 990

    Revenue
    $15,132,600
    Expenses
    $13,050,144
    Assets (EOY)
    $10,440,559

  • 2019 · 990

    Revenue
    $12,908,912
    Expenses
    $12,127,720
    Assets (EOY)
    $8,983,346

  • 2018 · 990

    Revenue
    $10,808,084
    Expenses
    $11,998,043
    Assets (EOY)
    $8,187,528

  • 2017 · 990

    Revenue
    $11,998,107
    Expenses
    $11,655,343
    Assets (EOY)
    $9,568,755

  • 2016 · 990

    Revenue
    $10,946,774
    Expenses
    $10,572,862
    Assets (EOY)
    $9,385,986

  • 2015 · 990

    Revenue
    $9,537,590
    Expenses
    $9,594,262
    Assets (EOY)
    $9,106,858

  • 2014 · 990

    Revenue
    $9,296,864
    Expenses
    $9,580,638
    Assets (EOY)
    $9,256,992

  • 2013 · 990

    Revenue
    $9,288,130
    Expenses
    $9,404,468
    Assets (EOY)
    $9,516,871

  • 2012 · 990

    Revenue
    not reported
    Expenses
    $9,286,414
    Assets (EOY)
    $9,307,243

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

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared as related by

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.