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Emergency Medicine

Themy T. Ngo, DO

Works at hospitals in Killeen, TX · Round Rock, TX · Texas

Summary

Dr. Themy T. Ngo, DO is an emergency medicine doctor at 2201 Clear Creek Rd, Killeen, TX 76549. Phone: (254) 526-7523. Accepts Medicare assignment. In 2024, Themy T. Ngo had 277 Original Medicare patients and 367 services. NPI 1992091144. 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 Themy T. Ngo, 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 Themy T. Ngo accept Medicare assignment?
Yes. Medicare's clinician data says Themy T. Ngo 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 Themy T. Ngo see?
In 2024, CMS data shows 277 Original Medicare patients and 367 services for Themy T. Ngo. This counts Original Medicare only and measures volume, not quality.
What is Themy T. Ngo's NPI number?
1992091144. 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 Themy T. Ngo, 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 patients277
Services billed to Medicare367
Different services or procedures25
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)180 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)62 services
  3. Emergency department visit with moderate level of medical decision making (99284)45 services
  4. Critical care, first 30-74 minutes (99291)45 services
  5. Emergency department visit with low level of medical decision making (99283)11 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%
  • Arthritis52%
  • Ischemic heart disease40%
  • Chronic kidney disease39%
  • Diabetes38%

Hospitals where Themy T. Ngo works

Medicare's Facility Affiliation Data lists Themy T. Ngo 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 Themy T. Ngo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Themy T. Ngo as a member of this group (CMS data updated October 2, 2026).

  • Sound Physicians Emergency Medicine of Texas PLLC113 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Killeen

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

All emergency medicine doctors in Killeen →

Other clinicians in Sound Physicians Emergency Medicine of Texas PLLC

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

Clinician information

CredentialDO
Medical schoolWest Virginia School Of Osteopathic Medicine
Graduation year2011 (15 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992091144
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