Oatmeal Healthoatmealhealth.com · public-data estimate, October 2026

Regional One Health

Lung screening gap across 28 counties in Arkansas, Mississippi, Missouri and Tennessee

100,000to160,000adults in its service area qualify for lung cancer screening and are not being screened

About 1,700 people here are diagnosed with lung cancer each year, and 65% are found at a late stage, when it is hardest to treat.

Explore the screening network
KYMOTNLAILARMSAL
28 counties1 acute care hospitalService area
120,000 to 190,000adults likely qualify under USPSTF 2021 criteria (estimate)
1,100lung cancer deaths a year in these counties, 2020 to 2024
15.2%of eligible adults screened in these states, vs 18.2% nationally

Estimates from public data only; no patient information. Sources and method below.

Where the eligible adults live

The counties where most of Regional One Health's Medicare inpatients live. Darker areas hold more adults who likely qualify, which is where outreach would start. Hover or tap any area for its estimate.

Adults likely eligible, per neighborhood

0+170+240+290+350+420+500+

Acute care hospital in this system

Counties in the service area

CountyStateAdults likely eligibleLung cancer deaths per 100kMedicare screens billed locally, 2024
Shelby CountyTennessee47,400 to 80,70035.31,946
DeSoto CountyMississippi8,400 to 15,80046.7132
Madison CountyTennessee6,200 to 9,70040.5305
Craighead CountyArkansas4,900 to 9,00047.7313
Tipton CountyTennessee4,000 to 5,90054.2None billed locally
Fayette CountyTennessee3,200 to 5,00028.2None billed locally
Gibson CountyTennessee3,500 to 4,90059.8None billed locally
Greene CountyArkansas2,800 to 4,30053.220
Crittenden CountyArkansas2,800 to 4,20050.9None billed locally
Mississippi CountyArkansas2,300 to 3,80067.4None billed locally
Dyer CountyTennessee2,400 to 3,80054.215
Marshall CountyMississippi2,600 to 3,60065.1None billed locally
Obion CountyTennessee2,300 to 3,20064.2None billed locally
Panola CountyMississippi2,300 to 3,20050.5None billed locally
Carroll CountyTennessee2,100 to 3,00050.4None billed locally
Hardin CountyTennessee2,600 to 3,00052.3None billed locally
McNairy CountyTennessee2,100 to 2,90054.2None billed locally
Dunklin CountyMissouri2,000 to 2,80070.9None billed locally
Tate CountyMississippi1,600 to 2,70057.9None billed locally
Bolivar CountyMississippi1,900 to 2,70055.118
Hardeman CountyTennessee1,900 to 2,50057.8None billed locally
St. Francis CountyArkansas1,600 to 2,40048.3None billed locally
Tippah CountyMississippi1,400 to 2,10048.9None billed locally
Coahoma CountyMississippi1,300 to 1,90059.2None billed locally
Haywood CountyTennessee1,500 to 1,90034.6None billed locally
Phillips CountyArkansas1,100 to 1,90050.421
Randolph CountyArkansas1,300 to 1,80054.2None billed locally
Pemiscot CountyMissouri1,200 to 1,60059.911

19 of the 28 counties had no Medicare lung screening reads billed from a local address in 2024. County names link to their Missing Millions page.

What closing the gap would mean

If screening in these counties rose from 15.2% to the national rate of 18.2%, about 3,600 to 5,800 more people would be screened each year.

In the National Lung Screening Trial, low-dose CT screening lowered lung cancer deaths by 20% compared with chest X-ray. Today about 65% of lung cancers here are found at a late stage.

Illustrative estimate: eligible adults (range) times the change in screening rate. Not a forecast or a guarantee.

Each year in these counties

1,700new lung cancers
1,100found at a late stage
1,100lung cancer deaths

NCI and CDC State Cancer Profiles, annual averages.

Screening at Regional One Health today

Public Medicare claims do not attribute lung screening reads to Regional One Health locations. Radiologists who read for a health system often bill through a separate radiology group, so Regional One Health's screening volume is best measured from its own records.

Most adults who qualify see a primary care clinician every year. We count 121 primary care clinicians, 5 pulmonologists and 0 thoracic surgeons practicing at Regional One Health locations. A 20 pack-year smoking history is often missing from structured EHR fields, so many eligible patients are never flagged.

CMS Medicare Physician and Other Practitioners 2024 (CPT 71271); clinicians matched to Regional One Health by practice address using the AHRQ Compendium of U.S. Health Systems 2023, so reads billed by outside radiology groups are not included. The all-payer estimate scales Medicare fee-for-service by the local Medicare Advantage share (47%, CMS) and, at the high end, by the share of eligible adults under 65 (65%).

1 acute care hospital

  • Regional One HealthMemphis, TN

Find them, reach them, give radiologists a second opinion

LungIQ Find

Reads clinical notes, diagnoses and medications in the EHR and returns a ranked list of patients likely eligible, including those whose pack-year history is missing. Start with a CSV export refreshed every 1, 3 or 6 months, or connect through FHIR or HL7.

LungNAV Reach

An AI patient navigator that texts and calls patients in 70+ languages, answers questions about the scan, and hands each patient to your scheduling team or nurse navigators with a call summary.

LungAI Second opinion

Gives radiologists a malignancy risk score for each nodule, factoring in change since the prior scan, inside the PACS and CADe software they already use. The radiologist makes the final call.

LungAI is an investigational medical device and has not been cleared by FDA. It is not commercially available in the United States.

How we estimate the gap

Modeled estimates from public data. They are not a count of Regional One Health patients and contain no patient information.

  • Service area: CMS Hospital Service Area File 2025 (counties within 120 miles of a system hospital holding 80% of its Medicare inpatients, plus any county with at least 1%); hospitals from the AHRQ Compendium of U.S. Health Systems, 2023.
  • Eligible adults, low estimate: Oatmeal Health Missing Millions (Census 2025 population, CDC PLACES smoking, USPSTF 2021).
  • Eligible adults, high estimate: University of Minnesota National Lung Cancer Screening Estimates (Haynes 2026), which also counts former smokers.
  • Screening rate: American Lung Association, State of Lung Cancer 2025.
  • Lung cancer cases and deaths: NCI and CDC State Cancer Profiles (incidence 2019 to 2023, deaths 2020 to 2024).
  • Screening volume: CMS Medicare Physician and Other Practitioners, 2024; CMS Medicare Advantage State/County Penetration, September 2026.

LungAI is an investigational medical device and has not been cleared by FDA. Oatmeal Health is preparing a 510(k) premarket notification. LungAI is not commercially available in the United States.

See Regional One Health's own numbers

In a 30 minute review we replace these public estimates with counts from your own records and agree on what a first program would look like.

Request a private screening review