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

Internal Medicine

Carol S. Twyman, MD

Works at hospitals in Homer, LA · West Monroe, LA · Nacogdoches, TX … · Louisiana, Texas

Summary

Dr. Carol S. Twyman, MD is an internal medicine doctor at 1204 N Mound St, Nacogdoches, TX 75961. Phone: (936) 564-4611. Accepts Medicare assignment. In 2024, Carol S. Twyman had 198 Original Medicare patients and 239 services. NPI 1073579314. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Carol S. Twyman, 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 Carol S. Twyman accept Medicare assignment?
Yes. Medicare's clinician data says Carol S. Twyman 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 Carol S. Twyman see?
In 2024, CMS data shows 198 Original Medicare patients and 239 services for Carol S. Twyman. This counts Original Medicare only and measures volume, not quality.
What is Carol S. Twyman's NPI number?
1073579314. 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 Carol S. Twyman, 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 patients198
Services billed to Medicare239
Different services or procedures21
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)71 services
  2. Emergency department visit with moderate level of medical decision making (99284)68 services
  3. Critical care, first 30-74 minutes (99291)50 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%
  • Diabetes47%
  • Heart failure43%
  • Anxiety42%

Hospitals where Carol S. Twyman works

Medicare's Facility Affiliation Data lists Carol S. Twyman 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 Carol S. Twyman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carol S. Twyman as a member of these groups (CMS data updated October 2, 2026).

  • Emergency Medicine Services of TX, PLLC400 clinicians in the group
  • Ess of Nacogdoches LLC27 clinicians in the group
  • Ed Physicians of West Louisiana, LLC26 clinicians in the group
  • Homer Memorial Hospital21 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Nacogdoches

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

All internal medicine doctors in Nacogdoches →

Other clinicians in Emergency Medicine Services of TX, PLLC

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

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In Shreveport
Graduation year1985 (41 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1073579314
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