Velarion Records

Public registries, as they were filed.

Critical access hospital · CA

Mark Twain Medical Center

$86,813,951Net patient revenueWhat the hospital took in for treating patients, after discounts.
-2.5%Left after the cost of careWhat was left after their care was paid for; below zero means it cost more than it brought in.
2.1%Charity careCare given free or discounted, as a share of what patients brought in.
3.8%Uncompensated careCharity care plus bills that went unpaid, on the same basis.

From this hospital’s Medicare cost report for the year ended 31 December 2024. Every figure on this page names the cell it came from.

  • 7Registered locations
  • 1Associated locations
  • 2Contract pharmacies
  • 2With no end date
  • 1 April 2013In 340B since

Finances, as filed

From this hospital’s Medicare cost report for the year ended 31 December 2024.

FigureAs filedWhere it comes from
Net patient revenue$86,813,951CMS-2552-10 worksheet G300000 line 300 column 100
Total operating expenses$88,944,030CMS-2552-10 worksheet G300000 line 400 column 100
Income from service to patients−$2,130,079CMS-2552-10 worksheet G300000 line 500 column 100
Charity care, at charges$4,086,452CMS-2552-10 worksheet S100001 line 2000 column 300
Charity care, at cost$1,831,324CMS-2552-10 worksheet S100001 line 2300 column 300
Bad debt expense$4,649,816CMS-2552-10 worksheet S100001 line 2600 column 100
Uncompensated care, at cost$3,288,918CMS-2552-10 worksheet S100001 line 3000 column 100
Total facility beds25CMS-2552-10 worksheet S300001 line 1400 column 200
Cost-to-charge ratio0.3132CMS-2552-10 worksheet S100001 line 100 column 100

Cost report filed under CMS certification number 051332 for 1 January 2024 to 31 December 2024, as submitted. The public file it was read from.

Where this hospital sits among its peers

Each figure’s position among critical access hospitals in California that file a Medicare cost report. A position, not a score: the hospitals are counted, not ranked.

  • 84thpercentile of 25 critical access hospitals in CaliforniaCharity care
  • 79thpercentile of 34 critical access hospitals in CaliforniaUncompensated care
  • 56thpercentile of 34 critical access hospitals in CaliforniaLeft after the cost of care
  • 32ndpercentile of 34 critical access hospitals in CaliforniaContract pharmacies

Among hospitals of the same type in California

Every critical access hospital in California that files a Medicare cost report carrying both figures — 25 hospitals, each at its own reporting year. Across the bottom: how much of what the hospital took in from patients went to charity care. Up the side: what it had left after the cost of serving them. Both come straight from the filings.

0.0%1.0%2.0%3.0%4.0%-100%-75.0%-50.0%-25.0%0.0%25.0%Adventist Health Clearlake Hospital, Inc. — charity care 1.4% of patient revenue, -6.8% left after the cost of careAdventist Health Medical Center Tehachapi — charity care 0.6% of patient revenue, -1.9% left after the cost of careADVENTIST HEALTH MENDOCINO COAST — charity care 2.4% of patient revenue, -12.8% left after the cost of careBANNER LASSEN MEDICAL CENTER — charity care 1.4% of patient revenue, -16.0% left after the cost of careBEAR VALLEY COMMUNITY HOSPITAL — charity care 0.3% of patient revenue, -18.0% left after the cost of careCATALINA ISLAND MEDICAL CENTER — charity care 0.2% of patient revenue, -13.9% left after the cost of careDIGNITY HEALTH D/B/A MERCY MEDICAL CENTER MT. SHASTA — charity care 3.1% of patient revenue, 0.3% left after the cost of careEASTERN PLUMAS HEALTH CARE — charity care 0.1% of patient revenue, 3.3% left after the cost of careFairchild Medical Center — charity care 0.3% of patient revenue, -1.2% left after the cost of careJEROLD PHELPS COMMUNITY HOSPITAL — charity care 0.5% of patient revenue, -77.3% left after the cost of careJOHN C. FREMONT HEALTHCARE DISTRICT — charity care 0.0% of patient revenue, -24.4% left after the cost of careMAYERS MEMORIAL HOSPITAL — charity care 2.6% of patient revenue, -1.8% left after the cost of careNORTHERN INYO HOSPITAL — charity care 0.0% of patient revenue, -18.6% left after the cost of careORCHARD HOSPITAL — charity care 0.5% of patient revenue, -6.4% left after the cost of careRidgecrest Regional Hospital — charity care 0.2% of patient revenue, -9.2% left after the cost of careSAN BERNARDINO MOUNTAINS COMMUNITY HOSPITAL DISTRICT — charity care 0.1% of patient revenue, -9.9% left after the cost of careSANTA YNEZ VALLEY COTTAGE HOSPITAL — charity care 1.7% of patient revenue, 0.7% left after the cost of careSouthern Mono Healthcare District DBA Mammoth Hospital — charity care 1.1% of patient revenue, 4.2% left after the cost of careSouthern Monterey County Memorial Hospital DBA: George L. Mee Memorial Hospital — charity care 0.2% of patient revenue, -6.6% left after the cost of careSt Joseph Health Northern California LLC- DBA Redwood Memorial Hospital — charity care 2.5% of patient revenue, -9.4% left after the cost of careSutter Bay Hospitals, dba Sutter Lakeside Hospital — charity care 1.3% of patient revenue, 6.0% left after the cost of careTAHOE FOREST HOSPITAL — charity care 0.2% of patient revenue, 19.1% left after the cost of careTRINITY HOSPITAL — charity care 0.2% of patient revenue, 10.9% left after the cost of careWillits Hospital Inc., DBA Adventist Health Howard Memorial — charity care 1.2% of patient revenue, -10.6% left after the cost of careMark Twain Medical Center — this hospitalThis hospitalCharity care, as a share of what patients brought inLeft after the cost of care

Identity never rests on color: this hospital is labelled on the plot and marked in the table. Hover a dot for the hospital’s name.

Hospitals plotted above, with the figures at full precision
HospitalWhereCharity care, share of patient revenueLeft after the cost of careYear ended
Adventist Health Clearlake Hospital, Inc.Clearlake, CA1.4%-6.8%2024-12-31
Adventist Health Medical Center TehachapiTehachapi, CA0.6%-1.9%2024-12-31
ADVENTIST HEALTH MENDOCINO COASTFORT BRAGG, CA2.4%-12.8%2024-12-31
BANNER LASSEN MEDICAL CENTERSUSANVILLE, CA1.4%-16.0%2024-12-31
BEAR VALLEY COMMUNITY HOSPITALBIG BEAR, CA0.3%-18.0%2025-06-30
CATALINA ISLAND MEDICAL CENTERAVALON, CA0.2%-13.9%2025-06-30
DIGNITY HEALTH D/B/A MERCY MEDICAL CENTER MT. SHASTAMOUNT SHASTA, CA3.1%0.3%2025-06-30
EASTERN PLUMAS HEALTH CAREPORTOLA, CA0.1%3.3%2025-06-30
Fairchild Medical CenterYreka, CA0.3%-1.2%2024-12-31
JEROLD PHELPS COMMUNITY HOSPITALGARBERVILLE, CA0.5%-77.3%2025-06-30
JOHN C. FREMONT HEALTHCARE DISTRICTMARIPOSA, CA0.0%-24.4%2025-06-30
Mark Twain Medical Center — this hospitalSan Andreas, CA2.1%-2.5%2024-12-31
MAYERS MEMORIAL HOSPITALFALL RIVER MILLS, CA2.6%-1.8%2025-06-30
NORTHERN INYO HOSPITALBISHOP, CA0.0%-18.6%2025-06-30
ORCHARD HOSPITALGRIDLEY, CA0.5%-6.4%2025-06-30
Ridgecrest Regional HospitalRidgecrest, CA0.2%-9.2%2024-12-31
SAN BERNARDINO MOUNTAINS COMMUNITY HOSPITAL DISTRICTLAKE ARROWHEAD, CA0.1%-9.9%2025-06-30
SANTA YNEZ VALLEY COTTAGE HOSPITALSOLVANG, CA1.7%0.7%2024-12-31
Southern Mono Healthcare District DBA Mammoth HospitalMammoth Lakes, CA1.1%4.2%2025-06-30
Southern Monterey County Memorial Hospital DBA: George L. Mee Memorial HospitalKing City, CA0.2%-6.6%2024-09-30
St Joseph Health Northern California LLC- DBA Redwood Memorial HospitalFortuna, CA2.5%-9.4%2025-06-30
Sutter Bay Hospitals, dba Sutter Lakeside HospitalLAKEPORT, CA1.3%6.0%2024-12-31
TAHOE FOREST HOSPITALTRUCKEE, CA0.2%19.1%2025-06-30
TRINITY HOSPITALWEAVERVILLE, CA0.2%10.9%2024-12-31
Willits Hospital Inc., DBA Adventist Health Howard MemorialWillits, CA1.2%-10.6%2024-12-31

Earlier years

One cost report is on file for this hospital, for the year ended 31 December 2024. There is no earlier year to set beside it.

Changes recorded

Nothing on this record has moved since it was first read here on 6 September 2026.

Download this hospital’s data (CSV)
Cite this page

Velarion Records, “Mark Twain Medical Center” (340B ID CAH051332-00), citing the HRSA 340B OPAIS Covered Entity Daily Report, file 340B_CoveredEntity_Daily_20260907_110549.xlsx. https://velarionrecords.com/340b/CAH051332-00

Register detail and identifiers

Participation, as filed

Participating
TRUE
Participation start date
1 April 2013
Certification date
20 August 2026
Record last edited
20 August 2026

Identifiers

340B ID
CAH051332-00
Entity type as filed
CAH
CMS certification number
051332
NPI
1508968819 (CA)
Rural
Yes

768 Mountain Ranch Road, San Andreas CA 95249

Locations registered under this record

Browse all of them as a list →

340B IDNameTypeWhereParticipating
CAH051332-01COPPEROPOLIS FAMILY MEDICAL CENTERCAHCopperopolis, CATRUE
CAH051332-02VALLEY SPRINGS FAMILY MEDICAL CLINICCAHValley Springs, CAFALSE
CAH051332-03James Dalton Medical OfficeCAHAngels Camp, CATRUE
CAH051332-04ARNOLD MEDICAL CLINICCAHArnold, CATRUE
CAH051332-05San Andreas Medical ClinicCAHSan Andreas, CATRUE
CAH051332-06Cancer CenterCAHSan Andreas, CATRUE
CAH051332-07Infusion CenterCAHSan Andreas, CATRUE

Associated locations

OrganizationAddressWhere
Mark Twain Medical Center768 Mountain Ranch RoadSan Andreas CA 95249

Pharmacy contracts

PharmacyWhereBeginsEnds
SINA DRUG LLCLOUISVILLE, KY1 October 2026no end date filed
ST JOSEPH'S MCAULEY PHARMACYPHOENIX, AZ1 July 2019no end date filed

Every figure on this page is printed as it appears in the HRSA 340B OPAIS Covered Entity Daily Report, file 340B_CoveredEntity_Daily_20260907_110549.xlsx, stamped by its publisher 7 September 2026. This record has been read here since 6 September 2026.