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Internal Medicine

Teneese Nguyen, MD

Works at hospitals in Norwalk, CA · California

Summary

Dr. Teneese Nguyen, MD is an internal medicine doctor at 23141 Verdugo Dr, Suite 201, Laguna Hills, CA 92653. Phone: (949) 215-5055. Accepts Medicare assignment. In 2024, Teneese Nguyen had 72 Original Medicare patients and 476 services. NPI 1043306673. 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: 23141 Verdugo Dr, Suite 201, Laguna Hills, CA 92653 · Directions
  • Phone: (949) 215‑5055
  • Medicare: Accepts Medicare assignment
  • Hospital: Coast Plaza Hospital
  • Group practice: Orange County Palliative Care Group a Professional Medical Corp
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Teneese Nguyen, 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 Teneese Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Teneese Nguyen 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 Teneese Nguyen see?
In 2024, CMS data shows 72 Original Medicare patients and 476 services for Teneese Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Teneese Nguyen's NPI number?
1043306673. 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 Teneese Nguyen, 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 patients72
Services billed to Medicare476
Different services or procedures8
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)281 services
  2. Critical care, first 30-74 minutes (99291)89 services
  3. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)42 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%
  • Diabetes74%
  • Heart failure69%
  • Chronic kidney disease68%
  • Atrial fibrillation61%

Hospitals where Teneese Nguyen works

Medicare's Facility Affiliation Data lists Teneese Nguyen 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.

  • Coast Plaza HospitalNorwalk, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050771

Practice locations

Addresses where Teneese Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Orange County Palliative Care Group a Professional Medical Corp2 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Laguna Hills

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

All internal medicine doctors in Laguna Hills →

Other clinicians in Orange County Palliative Care Group a Professional Medical Corp

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

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043306673
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