Linda K. Armstrong, DO

Medicare activity in 2024

Official CMS public-use data for Linda K. Armstrong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. X-ray of chest, 1 view (71045)4,104 services
2. Ct scan head or brain without contrast (70450)2,207 services
3. Ct scan of abdomen and pelvis with contrast (74177)904 services
4. Ct scan of abdomen and pelvis without contrast (74176)836 services
5. Ct scan of blood vessels of chest with contrast (71275)765 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis57%
• Ischemic heart disease46%
• Diabetes44%
• Anxiety42%

Hospitals where Linda K. Armstrong works

Medicare's Facility Affiliation Data lists Linda K. Armstrong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Charleston Area Medical CenterCharleston, WV · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 510022
• Garnet Health Medical CenterMiddletown, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330126
• Penn Highlands DuboisDubois, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390086
• St Francis-DowntownGreenville, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420023
• Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012

Practice locations

Addresses where Linda K. Armstrong is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 35; the Medicare profile lists all.

• 1 Good Samaritan WayMount Vernon, IL 62864 · Good Samaritan Regional Health Center (557) 203‑1601
• 100 Hospital AveDu Bois, PA 15801 (814) 375‑3261
• 1003 E McCord StCentralia, IL 62801 · St Marys Hospital Centralia Illinois (618) 436‑6633
• 1031 S Fairmont AveLodi, CA 95240 (209) 334‑8580
• 1100 E Michgan AveGrayling, MI 49738 · Munson Medical Group (989) 348‑5461

Group practices

Medicare enrollment lists Linda K. Armstrong as a member of these groups (CMS data updated October 2, 2026).

• Wellstar Medical Group LLC3,093 clinicians in the group
• Adventist Health Physicians Network628 clinicians in the group
• Valley Physician Services PC592 clinicians in the group
• Radiology Alliance PC455 clinicians in the group
• Dubois Regional Medical Center416 clinicians in the group
• Self Medical Group395 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Illinois →

Other radiologists in Mount Vernon

Clinicians with the same Medicare primary specialty in Mount Vernon, IL — not a recommendation.

• Paul Sherman, MD
• Bao Nguyen, MD
• Justin Gross, MD
• Robert Case, MD
• Funmilayo Tade Adewale, MD
• Sara Plett, MD
• Justin White, DO
• David A. Reynolds, DO

All radiologists in Mount Vernon →

Other clinicians in Wellstar Medical Group LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Cynthia Y. Liu
• Anjali P. Grandhige, MD
• Natalie S. Trojanowski
• Rafail A. Chionatos, MD
• Daryl K. Abney, PA
• Sahir G. Shroff, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians