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Internal Medicine

Phuong Trinh, MD

Works at hospitals in Plano, TX · Dallas, TX · Texas

Summary

Dr. Phuong Trinh, MD is an internal medicine doctor at 18383 Preston Rd, Suite 202, Dallas, TX 75252. Phone: (469) 212-5212. Accepts Medicare assignment. In 2024, Phuong Trinh had 388 Original Medicare patients and 2,008 services. NPI 1720585979. 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 Phuong Trinh, 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 Phuong Trinh accept Medicare assignment?
Yes. Medicare's clinician data says Phuong Trinh 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 Phuong Trinh see?
In 2024, CMS data shows 388 Original Medicare patients and 2,008 services for Phuong Trinh. This counts Original Medicare only and measures volume, not quality.
What is Phuong Trinh's NPI number?
1720585979. 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 Phuong Trinh, 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 patients388
Services billed to Medicare2,008
Different services or procedures18
Participating Medicare providerYes
Average age of these patients81

Most frequent services

  1. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)1,331 services
  2. Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)260 services
  3. Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)173 services
  4. Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)100 services
  5. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)78 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%
  • Arthritis69%
  • Depression57%
  • Anxiety51%
  • Heart failure48%

Hospitals where Phuong Trinh works

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

Group practices

Medicare enrollment lists Phuong Trinh as a member of this group (CMS data updated October 2, 2026).

  • Texas Health Physicians Group1,365 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Dallas

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

All internal medicine doctors in Dallas →

Other clinicians in Texas Health Physicians Group

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

Clinician information

CredentialMD
Medical schoolTexas Tech University Health Science Center School Of Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1720585979
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