Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Edward R. Armstrong, MD

Works at hospitals in Paris, TX · Texas

Summary

Dr. Edward R. Armstrong, MD is an emergency medicine doctor at 865 Deshong Dr, Paris, TX 75460. Phone: (903) 785-4521. Accepts Medicare assignment. In 2024, Edward R. Armstrong had 963 Original Medicare patients and 1,573 services. NPI 1255399309. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 865 Deshong Dr, Paris, TX 75460 · Directions
  • Phone: (903) 785‑4521
  • Medicare: Accepts Medicare assignment
  • Hospital: Paris Regional Medical Center
  • Group practice: Acs Primary Care Physicians Southwest PA
  • Medical school: University Of Oklahoma College Of Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Edward R. Armstrong, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Edward R. Armstrong accept Medicare assignment?
Yes. Medicare's clinician data says Edward R. Armstrong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Edward R. Armstrong see?
In 2024, CMS data shows 963 Original Medicare patients and 1,573 services for Edward R. Armstrong. This counts Original Medicare only and measures volume, not quality.
What is Edward R. Armstrong's NPI number?
1255399309. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Edward R. 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.

Original Medicare patients963
Services billed to Medicare1,573
Different services or procedures24
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)631 services
  2. Emergency department visit with high level of medical decision making (99285)575 services
  3. Emergency department visit with moderate level of medical decision making (99284)165 services
  4. Critical care, first 30-74 minutes (99291)112 services
  5. Emergency department visit with low level of medical decision making (99283)42 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%
  • Ischemic heart disease61%
  • Arthritis60%
  • Diabetes47%
  • Chronic kidney disease47%

Hospitals where Edward R. Armstrong works

Medicare's Facility Affiliation Data lists Edward R. 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.

  • Paris Regional Medical CenterParis, TX · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 450196

Practice locations

Addresses where Edward R. Armstrong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Edward R. Armstrong as a member of this group (CMS data updated October 2, 2026).

  • Acs Primary Care Physicians Southwest PA184 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Paris

Clinicians with the same Medicare primary specialty in Paris, TX — not a recommendation.

All emergency medicine doctors in Paris →

Other clinicians in Acs Primary Care Physicians Southwest PA

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

Clinician information

CredentialMD
Medical schoolUniversity Of Oklahoma College Of Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255399309
CorrectionsReport an error or suggest an update →

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