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Emergency Medicine

Cynthia A. Simmons, MD

Works at hospitals in Little Rock, AR · Arkansas

Summary

Dr. Cynthia A. Simmons, MD is an emergency medicine doctor at 4301 W Markam St, Little Rock, AR 72205. Phone: (501) 686-8000. Accepts Medicare assignment. In 2024, Cynthia A. Simmons had 214 Original Medicare patients and 319 services. NPI 1578542874. 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: 4301 W Markam St, Little Rock, AR 72205 · Directions
  • Phone: (501) 686‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Arkansas Medical Sciences
  • Group practice: University of Arkansas for Medical Sciences
  • Medical school: University Of Texas Southwestern Medical School At Dallas · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cynthia A. Simmons, 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 Cynthia A. Simmons accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia A. Simmons 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 Cynthia A. Simmons see?
In 2024, CMS data shows 214 Original Medicare patients and 319 services for Cynthia A. Simmons. This counts Original Medicare only and measures volume, not quality.
What is Cynthia A. Simmons's NPI number?
1578542874. 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 Cynthia A. Simmons, 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 patients214
Services billed to Medicare319
Different services or procedures14
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)115 services
  2. Emergency department visit with moderate level of medical decision making (99284)86 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)72 services
  4. Emergency department visit with low level of medical decision making (99283)12 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 cholesterol73%
  • Arthritis56%
  • Ischemic heart disease42%
  • Depression37%
  • Anxiety36%

Hospitals where Cynthia A. Simmons works

Medicare's Facility Affiliation Data lists Cynthia A. Simmons 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.

Practice locations

Addresses where Cynthia A. Simmons is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cynthia A. Simmons as a member of this group (CMS data updated October 2, 2026).

  • University of Arkansas for Medical Sciences1,175 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arkansas →

Other emergency medicine doctors in Little Rock

Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.

All emergency medicine doctors in Little Rock →

Other clinicians in University of Arkansas for Medical Sciences

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578542874
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