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Internal Medicine

Trung N. Dao, MD

Works at hospitals in Richardson, TX · Texas

Summary

Dr. Trung N. Dao, MD is an internal medicine doctor at 399 W Campbell Rd, Suite 212, Richardson, TX 75080. Phone: (972) 234-4994. Accepts Medicare assignment. In 2024, Trung N. Dao had 267 Original Medicare patients and 2,066 services. NPI 1558354712. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 399 W Campbell Rd, Suite 212, Richardson, TX 75080 · Directions
  • Phone: (972) 234‑4994
  • Medicare: Accepts Medicare assignment
  • Hospital: Methodist Richardson Medical Center
  • Medical school: University Of Oklahoma College Of Medicine · graduated 1991 (35 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Trung N. Dao, 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 Trung N. Dao accept Medicare assignment?
Yes. Medicare's clinician data says Trung N. Dao 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 Trung N. Dao see?
In 2024, CMS data shows 267 Original Medicare patients and 2,066 services for Trung N. Dao. This counts Original Medicare only and measures volume, not quality.
What is Trung N. Dao's NPI number?
1558354712. 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 Trung N. Dao, 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 patients267
Services billed to Medicare2,066
Different services or procedures12
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,350 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)229 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)192 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)182 services
  5. Hospital discharge day management, 30 minutes or less (99238)66 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%
  • Arthritis55%
  • Chronic kidney disease54%
  • Diabetes45%
  • Depression32%

Hospitals where Trung N. Dao works

Medicare's Facility Affiliation Data lists Trung N. Dao 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 Trung N. Dao is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Richardson

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

All internal medicine doctors in Richardson →

Clinician information

CredentialMD
Medical schoolUniversity Of Oklahoma College Of Medicine
Graduation year1991 (35 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558354712
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