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Free billing error guides for 100 hospitals with 1-star CMS patient satisfaction ratings. Based on federal HCAHPS data. Know your rights under 10 federal laws.

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100
hospitals covered
1★
CMS rated — bottom 10%
10
federal laws checked
Free
to check your bill
About this data: All star ratings come from the federal HCAHPS survey published by CMS at medicare.gov/care-compare, covering April 2024 through March 2025. A 1-star rating places a hospital in the bottom 10% nationally. This is public government data. BillSherpa is not affiliated with any hospital listed here.
Hospitals #1–50 by patient volume
Highest-volume 1-star hospitals
Sorted by number of patients surveyed — hospitals where the most patients may have been affected.
⭐ 1 star · PA
Conemaugh Memorial Medical Center Billing Errors — How to Check If You Were Overcharged
Johnstown, PA · 2,010 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Delray Medical Center Billing Errors — How to Check If You Were Overcharged
Delray Beach, FL · 1,690 patients surveyed · CMS Care Compare data
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⭐ 1 star · SC
Piedmont Medical Center Billing Errors — How to Check If You Were Overcharged
Rock Hill, SC · 1,321 patients surveyed · CMS Care Compare data
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⭐ 1 star · TN
Johnson City Medical Center Billing Errors — How to Check If You Were Overcharged
Johnson City, TN · 1,245 patients surveyed · CMS Care Compare data
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⭐ 1 star · AZ
Northwest Medical Center Billing Errors — How to Check If You Were Overcharged
Tucson, AZ · 1,218 patients surveyed · CMS Care Compare data
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⭐ 1 star · MA
St Vincent Hospital Billing Errors — How to Check If You Were Overcharged
Worcester, MA · 1,181 patients surveyed · CMS Care Compare data
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⭐ 1 star · AZ
St. Mary's Hospital Billing Errors — How to Check If You Were Overcharged
Tucson, AZ · 1,077 patients surveyed · CMS Care Compare data
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⭐ 1 star · TX
HCA Houston Healthcare Kingwood Billing Errors — How to Check If You Were Overcharged
Kingwood, TX · 1,044 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Tampa General Hospital Brooksville Billing Errors — How to Check If You Were Overcharged
Brooksville, FL · 1,009 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Nassau University Medical Center Billing Errors — How to Check If You Were Overcharged
East Meadow, NY · 960 patients surveyed · CMS Care Compare data
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⭐ 1 star · AZ
St Joseph's Hospital Billing Errors — How to Check If You Were Overcharged
Tucson, AZ · 927 patients surveyed · CMS Care Compare data
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⭐ 1 star · AZ
Abrazo West Campus Billing Errors — How to Check If You Were Overcharged
Goodyear, AZ · 926 patients surveyed · CMS Care Compare data
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⭐ 1 star · TN
St Francis Hospital Billing Errors — How to Check If You Were Overcharged
Memphis, TN · 836 patients surveyed · CMS Care Compare data
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⭐ 1 star · IN
Norton Clark Hospital Billing Errors — How to Check If You Were Overcharged
Jeffersonville, IN · 835 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Adventhealth Port Charlotte Billing Errors — How to Check If You Were Overcharged
Port Charlotte, FL · 828 patients surveyed · CMS Care Compare data
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⭐ 1 star · TN
Saint Francis Bartlett Medical Center Billing Errors — How to Check If You Were Overcharged
Bartlett, TN · 817 patients surveyed · CMS Care Compare data
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⭐ 1 star · SC
Hilton Head Regional Medical Center Billing Errors — How to Check If You Were Overcharged
Hilton Head Island, SC · 731 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Brookdale Hospital Medical Center Billing Errors — How to Check If You Were Overcharged
Brooklyn, NY · 730 patients surveyed · CMS Care Compare data
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⭐ 1 star · MD
Medstar Southern Maryland Hospital Center Billing Errors — How to Check If You Were Overcharged
Clinton, MD · 710 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Long Island Community Hospital Billing Errors — How to Check If You Were Overcharged
Patchogue, NY · 703 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Healthalliance Hospital Marys Avenue Campus Billing Errors — How to Check If You Were Overcharged
Kingston, NY · 688 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Oroville Hospital Billing Errors — How to Check If You Were Overcharged
Oroville, CA · 680 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Palmetto General Hospital Billing Errors — How to Check If You Were Overcharged
Hialeah, FL · 667 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
West Boca Medical Center Billing Errors — How to Check If You Were Overcharged
Boca Raton, FL · 665 patients surveyed · CMS Care Compare data
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⭐ 1 star · MA
Good Samaritan Medical Center Billing Errors — How to Check If You Were Overcharged
Brockton, MA · 660 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Ingalls Memorial Hospital Billing Errors — How to Check If You Were Overcharged
Harvey, IL · 658 patients surveyed · CMS Care Compare data
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⭐ 1 star · WA
Multicare Auburn Medical Center Billing Errors — How to Check If You Were Overcharged
Auburn, WA · 652 patients surveyed · CMS Care Compare data
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⭐ 1 star · TN
Tennova Healthcare-Clarksville Billing Errors — How to Check If You Were Overcharged
Clarksville, TN · 640 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Beaumont Hospital - Dearborn Billing Errors — How to Check If You Were Overcharged
Dearborn, MI · 636 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Central Florida Lake Monroe Hospital Billing Errors — How to Check If You Were Overcharged
Sanford, FL · 617 patients surveyed · CMS Care Compare data
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⭐ 1 star · MA
Metrowest Medical Center Billing Errors — How to Check If You Were Overcharged
Framingham, MA · 598 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Mclaren Macomb Billing Errors — How to Check If You Were Overcharged
Mount Clemens, MI · 596 patients surveyed · CMS Care Compare data
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⭐ 1 star · NV
Sunrise Hospital And Medical Center Billing Errors — How to Check If You Were Overcharged
Las Vegas, NV · 592 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Olean General Hospital Billing Errors — How to Check If You Were Overcharged
Olean, NY · 592 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
HCA Florida Fawcett Hospital Billing Errors — How to Check If You Were Overcharged
Port Charlotte, FL · 578 patients surveyed · CMS Care Compare data
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⭐ 1 star · NJ
Capital Health Regional Medical Center Billing Errors — How to Check If You Were Overcharged
Trenton, NJ · 574 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
St Mary's Medical Center Billing Errors — How to Check If You Were Overcharged
West Palm Beach, FL · 568 patients surveyed · CMS Care Compare data
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⭐ 1 star · WA
Yakima Valley Memorial Billing Errors — How to Check If You Were Overcharged
Yakima, WA · 565 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
HCA Florida Northwest Hospital Billing Errors — How to Check If You Were Overcharged
Margate, FL · 564 patients surveyed · CMS Care Compare data
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⭐ 1 star · MA
Brown University Health Morton Hospital Billing Errors — How to Check If You Were Overcharged
Taunton, MA · 563 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
HCA Florida Largo Hospital Billing Errors — How to Check If You Were Overcharged
Largo, FL · 538 patients surveyed · CMS Care Compare data
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⭐ 1 star · TX
The Hospitals Of Providence - Memorial Campus Billing Errors — How to Check If You Were Overcharged
El Paso, TX · 532 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Henry Ford Health Warren Hospital Billing Errors — How to Check If You Were Overcharged
Warren, MI · 526 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
St John's Episcopal Hospital At South Shore Billing Errors — How to Check If You Were Overcharged
Far Rockaway, NY · 523 patients surveyed · CMS Care Compare data
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⭐ 1 star · MS
Merit Health River Oaks Billing Errors — How to Check If You Were Overcharged
Flowood, MS · 517 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Harper University Hospital Billing Errors — How to Check If You Were Overcharged
Detroit, MI · 513 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
UCLA West Valley Medical Center Billing Errors — How to Check If You Were Overcharged
West Hills, CA · 512 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Mclaren Lapeer Region Billing Errors — How to Check If You Were Overcharged
Lapeer, MI · 507 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Beaumont Hospital - Farmington Hills Billing Errors — How to Check If You Were Overcharged
Farmington Hills, MI · 503 patients surveyed · CMS Care Compare data
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⭐ 1 star · PA
Temple Health - Chestnut Hill Hospital Billing Errors — How to Check If You Were Overcharged
Philadelphia, PA · 501 patients surveyed · CMS Care Compare data
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Hospitals #51–100 by patient volume
Additional 1-star hospitals
Continuing the list — all 1-star rated hospitals by CMS patient satisfaction survey.
⭐ 1 star · CO
HCA Healthone Mountain Ridge Billing Errors — How to Check If You Were Overcharged
Thornton, CO · 498 patients surveyed · CMS Care Compare data
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⭐ 1 star · GA
Southern Regional Medical Center Billing Errors — How to Check If You Were Overcharged
Riverdale, GA · 494 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
McLaren Oakland Billing Errors — How to Check If You Were Overcharged
Pontiac, MI · 470 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Orange County Global Medical Center Billing Errors — How to Check If You Were Overcharged
Santa Ana, CA · 458 patients surveyed · CMS Care Compare data
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⭐ 1 star · NC
Wilson Medical Center Billing Errors — How to Check If You Were Overcharged
Wilson, NC · 455 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Providence St Mary Medical Center Billing Errors — How to Check If You Were Overcharged
Apple Valley, CA · 446 patients surveyed · CMS Care Compare data
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⭐ 1 star · OH
Insight Hospital And Medical Center Trumbull Billing Errors — How to Check If You Were Overcharged
Warren, OH · 446 patients surveyed · CMS Care Compare data
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⭐ 1 star · PR
Mayaguez Medical Center Dr Ramon Emeterio Betances Billing Errors — How to Check If You Were Overcharged
Mayaguez, PR · 435 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Mt Sinai Hospital Medical Center Billing Errors — How to Check If You Were Overcharged
Chicago, IL · 431 patients surveyed · CMS Care Compare data
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⭐ 1 star · PR
Bayamon Medical Center Billing Errors — How to Check If You Were Overcharged
Bayamon, PR · 420 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Corewell Health Wayne Hospital Billing Errors — How to Check If You Were Overcharged
Wayne, MI · 414 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Richmond University Medical Center Billing Errors — How to Check If You Were Overcharged
Staten Island, NY · 411 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
North Shore Medical Center Billing Errors — How to Check If You Were Overcharged
Miami, FL · 408 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Hemet Global Medical Center Billing Errors — How to Check If You Were Overcharged
Hemet, CA · 393 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Detroit Receiving Hospital Billing Errors — How to Check If You Were Overcharged
Detroit, MI · 379 patients surveyed · CMS Care Compare data
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⭐ 1 star · FL
Hialeah Hospital Billing Errors — How to Check If You Were Overcharged
Hialeah, FL · 373 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Humboldt Park Health Billing Errors — How to Check If You Were Overcharged
Chicago, IL · 368 patients surveyed · CMS Care Compare data
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⭐ 1 star · PA
Penn Highlands Mon Valley Billing Errors — How to Check If You Were Overcharged
Monongahela, PA · 366 patients surveyed · CMS Care Compare data
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⭐ 1 star · PR
Doctors Center Bayamon Billing Errors — How to Check If You Were Overcharged
Bayamon, PR · 364 patients surveyed · CMS Care Compare data
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⭐ 1 star · TX
Baylor Scott And White Medical Center Sunnyvale Billing Errors — How to Check If You Were Overcharged
Sunnyvale, TX · 360 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Antelope Valley Hospital Billing Errors — How to Check If You Were Overcharged
Lancaster, CA · 359 patients surveyed · CMS Care Compare data
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⭐ 1 star · MI
Sinai-Grace Hospital Billing Errors — How to Check If You Were Overcharged
Detroit, MI · 358 patients surveyed · CMS Care Compare data
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⭐ 1 star · NC
Maria Parham Medical Center Billing Errors — How to Check If You Were Overcharged
Henderson, NC · 354 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Southern California Hospital At Hollywood Billing Errors — How to Check If You Were Overcharged
Hollywood, CA · 352 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Montefiore New Rochelle Hospital Billing Errors — How to Check If You Were Overcharged
New Rochelle, NY · 340 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Sherman Oaks Hospital Billing Errors — How to Check If You Were Overcharged
Sherman Oaks, CA · 337 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Harlem Hospital Center Billing Errors — How to Check If You Were Overcharged
New York, NY · 337 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
UCI Health-Lakewood Billing Errors — How to Check If You Were Overcharged
Lakewood, CA · 333 patients surveyed · CMS Care Compare data
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⭐ 1 star · WA
Grays Harbor Community Hospital Billing Errors — How to Check If You Were Overcharged
Aberdeen, WA · 332 patients surveyed · CMS Care Compare data
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⭐ 1 star · AZ
Abrazo Central Campus Billing Errors — How to Check If You Were Overcharged
Phoenix, AZ · 321 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
New York Community Hospital Of Brooklyn Billing Errors — How to Check If You Were Overcharged
Brooklyn, NY · 315 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Foothill Regional Medical Center Billing Errors — How to Check If You Were Overcharged
Tustin, CA · 309 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
Niagara Falls Memorial Medical Center Billing Errors — How to Check If You Were Overcharged
Niagara Falls, NY · 301 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Los Angeles Community Hospital Billing Errors — How to Check If You Were Overcharged
Los Angeles, CA · 274 patients surveyed · CMS Care Compare data
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⭐ 1 star · NJ
Carepoint Health - Bayonne Medical Center Billing Errors — How to Check If You Were Overcharged
Bayonne, NJ · 268 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Mission Community Hospital Billing Errors — How to Check If You Were Overcharged
Panorama City, CA · 248 patients surveyed · CMS Care Compare data
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⭐ 1 star · NY
SUNY Downstate University Hospital Of Brooklyn Billing Errors — How to Check If You Were Overcharged
Brooklyn, NY · 246 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Community Hospital Of Huntington Park Billing Errors — How to Check If You Were Overcharged
Huntington Park, CA · 244 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Memorial Hospital Of Gardena Billing Errors — How to Check If You Were Overcharged
Gardena, CA · 242 patients surveyed · CMS Care Compare data
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⭐ 1 star · NM
Carlsbad Medical Center Billing Errors — How to Check If You Were Overcharged
Carlsbad, NM · 242 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Huntington Beach Hospital Billing Errors — How to Check If You Were Overcharged
Huntington Beach, CA · 240 patients surveyed · CMS Care Compare data
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⭐ 1 star · AL
Vaughan Regional Medical Center Parkway Campus Billing Errors — How to Check If You Were Overcharged
Selma, AL · 234 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Victor Valley Global Medical Center Billing Errors — How to Check If You Were Overcharged
Victorville, CA · 234 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Roseland Community Hospital Billing Errors — How to Check If You Were Overcharged
Chicago, IL · 217 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Louis A Weiss Memorial Hospital Billing Errors — How to Check If You Were Overcharged
Chicago, IL · 210 patients surveyed · CMS Care Compare data
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⭐ 1 star · MS
Memorial Hospital Biloxi Billing Errors — How to Check If You Were Overcharged
Biloxi, MS · 202 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Vista Medical Center East Billing Errors — How to Check If You Were Overcharged
Waukegan, IL · 197 patients surveyed · CMS Care Compare data
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⭐ 1 star · IA
Ottumwa Regional Health Center Billing Errors — How to Check If You Were Overcharged
Ottumwa, IA · 197 patients surveyed · CMS Care Compare data
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⭐ 1 star · CA
Hi-Desert Medical Center Billing Errors — How to Check If You Were Overcharged
Joshua Tree, CA · 194 patients surveyed · CMS Care Compare data
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⭐ 1 star · IL
Holy Cross Hospital Billing Errors — How to Check If You Were Overcharged
Chicago, IL · 168 patients surveyed · CMS Care Compare data
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