Yellowstone City-County Health Department dba Riverstone Health: Single Audit Reports and Findings
Yellowstone City-County Health Department dba Riverstone Health's most recent single audit in the Federal Audit Clearinghouse covers fiscal year 2025, accepted December 8, 2025; the auditor observed on that filing is KCoe Isom, LLP. It reported no findings. 10 filings from 2016 to 2025 are on record. Data as of 2026-11-06.
Data as of Nov 6, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; Yellowstone City-County Health Department dba Riverstone Health is recorded in BILLINGS, Montana under EIN 810513538, and the Clearinghouse records it as a local government. Each report opens on the Clearinghouse itself; how to search the Federal Audit Clearinghouse explains the rest of the reporting package.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Opinion | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|---|
| 2025 | 2025-06-30 | $11,959,139 | $750,000 | KCoe Isom, LLP | Unmodified | 0 | — | 2025-06-GSAFAC-0000389790 |
| 2024 | 2024-06-30 | $11,819,024 | $750,000 | KCoe Isom, LLP | Unmodified | 0 | — | 2024-06-GSAFAC-0000348385 |
| 2023 | 2023-06-30 | $12,835,509 | $750,000 | KCoe Isom, LLP | Unmodified | 0 | — | 2023-06-GSAFAC-0000015797 |
| 2022 | 2022-06-30 | $9,917,091 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2022-06-CENSUS-0000184558 |
| 2021 | 2021-06-30 | $11,486,855 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2021-06-CENSUS-0000184558 |
| 2020 | 2020-06-30 | $8,774,372 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2020-06-CENSUS-0000184558 |
| 2019 | 2019-06-30 | $8,068,868 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2019-06-CENSUS-0000184558 |
| 2018 | 2018-06-30 | $8,873,871 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2018-06-CENSUS-0000184558 |
| 2017 | 2017-06-30 | $8,383,690 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2017-06-CENSUS-0000184558 |
| 2016 | 2016-06-30 | $7,315,301 | $750,000 | Anderson Zurmuehlen & Co., P.C. | Unmodified | 0 | — | 2016-06-CENSUS-0000184558 |
When is the next single audit due?
If Yellowstone City-County Health Department dba Riverstone Health is again required to have a single audit for the fiscal year ending Jun 30, 2026, the reporting package is due to the Federal Audit Clearinghouse by Mar 30, 2027 at the latest.
Whether an audit is required depends on federal awards expended in that year (the single audit threshold). The rule, 2 CFR 200.512(a): the reporting package is due within 30 calendar days after the auditee receives the auditor's report or nine months after the end of the audit period, whichever is earlier; the date above is the nine-month date, moved to Monday when it falls on a weekend. Last verified: 2026-11-15.
Which federal programs did this organization report?
From the most recent accepted report, as listed on its schedule of expenditures of federal awards (SEFA). "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 93.224 | HEALTH CENTER PROGRAM (COMMUNITY HEALTH CENTERS, MIGRANT HEALTH CENTERS, HEALTH CARE FOR THE HOMELESS, AND PUBLIC HOUSING PRIMARY CARE) | $3,701,720 | No |
| 93.224 | HEALTH CENTER PROGRAM (COMMUNITY HEALTH CENTERS, MIGRANT HEALTH CENTERS, HEALTH CARE FOR THE HOMELESS, AND PUBLIC HOUSING PRIMARY CARE) | $1,099,458 | No |
| 93.530 | TEACHING HEALTH CENTER GRADUATE MEDICAL EDUCATION PAYMENT | $960,000 | Yes |
| 10.557 | WIC SPECIAL SUPPLEMENTAL NUTRITION PROGRAM FOR WOMEN, INFANTS, AND CHILDREN | $876,658 | Yes |
| 93.268 | IMMUNIZATION COOPERATIVE AGREEMENTS | $756,332 | No |
| 93.268 | IMMUNIZATION COOPERATIVE AGREEMENTS | $749,882 | No |
| 93.530 | TEACHING HEALTH CENTER GRADUATE MEDICAL EDUCATION PAYMENT | $480,000 | Yes |
| 93.870 | MATERNAL, INFANT AND EARLY CHILDHOOD HOME VISITING GRANT | $388,051 | No |
| 93.884 | PRIMARY CARE TRAINING AND ENHANCEMENT | $357,269 | No |
| 93.918 | GRANTS TO PROVIDE OUTPATIENT EARLY INTERVENTION SERVICES WITH RESPECT TO HIV DISEASE | $297,158 | Yes |
| 93.495 | COMMUNITY HEALTH WORKERS FOR PUBLIC HEALTH RESPONSE AND RESILIENT | $257,900 | No |
| 93.069 | PUBLIC HEALTH EMERGENCY PREPAREDNESS | $206,061 | No |
| 93.107 | AREA HEALTH EDUCATION CENTERS | $154,236 | No |
| 93.917 | HIV CARE FORMULA GRANTS | $144,002 | No |
| 93.870 | MATERNAL, INFANT AND EARLY CHILDHOOD HOME VISITING GRANT | $140,335 | No |
| 93.434 | EVERY STUDENT SUCCEEDS ACT/PRESCHOOL DEVELOPMENT GRANTS | $136,867 | No |
| 93.155 | RURAL HEALTH RESEARCH CENTERS | $125,145 | No |
| 93.994 | MATERNAL AND CHILD HEALTH SERVICES BLOCK GRANT TO THE STATES | $119,245 | No |
| 93.074 | HOSPITAL PREPAREDNESS PROGRAM (HPP) AND PUBLIC HEALTH EMERGENCY PREPAREDNESS (PHEP) ALIGNED COOPERATIVE AGREEMENTS | $106,213 | No |
| 93.145 | HIV-RELATED TRAINING AND TECHNICAL ASSISTANCE | $90,443 | No |
| 93.997 | ASSISTED OUTPATIENT TREATMENT | $74,541 | No |
| 93.354 | PUBLIC HEALTH EMERGENCY RESPONSE: COOPERATIVE AGREEMENT FOR EMERGENCY RESPONSE: PUBLIC HEALTH CRISIS RESPONSE | $72,502 | No |
| 93.556 | MARYLEE ALLEN PROMOTING SAFE AND STABLE FAMILIES PROGRAM | $62,261 | No |
| 93.069 | PUBLIC HEALTH EMERGENCY PREPAREDNESS | $61,743 | No |
| 93.788 | OPIOID STR | $57,348 | No |
What findings did the auditor report?
The reference is the auditor’s; the requirement is the Compliance Supplement category the auditor selected. The finding text itself is not reproduced here; the FAC report linked above carries it in full. What the two severity levels mean: material weakness vs significant deficiency.
The most recent report lists no finding.
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How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits Yellowstone City-County Health Department dba Riverstone Health now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “Yellowstone City-County Health Single Audit FY2025 (MT).” https://getauditradar.com/single-audits/mt/yellowstone-city-county-health-department-dba-riverstone-health-810513538/. Data as of 2026-11-06.