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Internal Medicine

Thu Thuy T. Huynh, MD

Works at hospitals in Newport Beach, CA · Fountain Valley, CA · California

Summary

Dr. Thu Thuy T. Huynh, MD is an internal medicine doctor at 15571 Brookhurst St, Westminster, CA 92683. Phone: (714) 902-9523. Accepts Medicare assignment. In 2024, Thu Thuy T. Huynh had 508 Original Medicare patients and 22,886 services. NPI 1740343367. 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 Thu Thuy T. Huynh, 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 Thu Thuy T. Huynh accept Medicare assignment?
Yes. Medicare's clinician data says Thu Thuy T. Huynh 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 Thu Thuy T. Huynh see?
In 2024, CMS data shows 508 Original Medicare patients and 22,886 services for Thu Thuy T. Huynh. This counts Original Medicare only and measures volume, not quality.
What is Thu Thuy T. Huynh's NPI number?
1740343367. 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 Thu Thuy T. Huynh, 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 patients508
Services billed to Medicare22,886
Different services or procedures44
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Test for allergy using allergenic extract (95004)11,376 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)2,237 services
  3. Collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days (99091)1,253 services
  4. Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)1,229 services
  5. Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)947 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%
  • Chronic kidney disease57%
  • Diabetes50%
  • Arthritis46%
  • Osteoporosis40%

Hospitals where Thu Thuy T. Huynh works

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

Group practices

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

  • Physician Partners Medical Group Inc2 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Westminster

Clinicians with the same Medicare primary specialty in Westminster, CA — not a recommendation.

All internal medicine doctors in Westminster →

Other clinicians in Physician Partners Medical Group Inc

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

Clinician information

CredentialMD
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1740343367
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