Dr. Trang T. Nguyen, DO

  • Murrieta, CA
  • Internist
NPI1861836207PAC ID2062630239
Medicare services, 2024
769
Medicare patients, 2024
242
Part D claims, 2024
110
Publications
17
Hospital affiliations
1
Practice address
25500 Medical Center Drive, Murrieta, CA 92562
Practice phone
Call (951) 696-6000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Southwest Healthcare Rancho Springs Hospital

Hospital · Murrieta, California

See all 3 affiliations

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Dr. Trang T. Nguyen is an internist in Murrieta, California

Dr. Nguyen practices at Southwest Healthcare Rancho Springs Hospital in Murrieta, California, part of Universal Health Services.

Dr. Nguyen's NPI, 1861836207, was assigned on April 27, 2013. Dr. Nguyen graduated from Arizona School of Dentistry and Oral Health - Mesa in 2012. Dr. Nguyen holds California license 20A15645.

NPI and contact details
Medicare PAC ID
2062630239
NPI enumeration date
April 27, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(951) 696-6000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Trang T. Nguyen practices at Southwest Healthcare Rancho Springs Hospital in Murrieta, California

Dr. Nguyen's primary practice is Southwest Healthcare Rancho Springs Hospital, at 25500 Medical Center Drive, Murrieta, CA 92562 in Riverside County. The practice phone is (951) 696-6000.

Source: Dmand AI Affiliation Data

Dr. Trang T. Nguyen is affiliated with 2 sites of care and 1 medical group

Dr. Nguyen's primary practice is Southwest Healthcare Rancho Springs Hospital in Murrieta, California, part of Universal Health Services. The medical group on file is Acute Care Associates. Dmand AI also links Dr. Nguyen to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Nguyen

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Trang T. Nguyen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Southwest Healthcare Rancho Springs HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Trang T. Nguyen is one of 16,751 internists in California

Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nguyen is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Nguyen is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense 20A15645 · taxonomy 207R00000X

Clinical focus

Dmand AI lists congestive heart failure, electrolyte disorders, gastrointestinal inflammation, heart attack, kidney failure, loss of balance, lung disease: COPD, asthma or bronchitis and mini-stroke (TIA) among the conditions Dr. Nguyen treats.

Internists near Dr. Nguyen

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Trang T. Nguyen billed Medicare for 769 services in 2024

CMS data shows 769 Medicare services from Dr. Nguyen across 6 procedure codes in 2024, for 242 Medicare patients. Medicare paid $52,091 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024769
Medicare patients242
Paid by Medicare$52,091
Procedure codes6

Dr. Nguyen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4872024: 76958%

Dr. Nguyen compared with the California median for internists, 2024

  • Dr. Nguyen
  • California median
Medicare services
769vs 3612.1 times
Medicare patients
242vs 15160% above
Part D claims
13vs 42197% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Nguyen's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Nguyen

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Trang T. Nguyen treated 242 Medicare patients in 2024, average age 76

CMS counts 242 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 64, with 54% women.

Medicare patients, 2024242
Average age76
Average risk score2.74
Also on Medicaid47%

Dr. Nguyen's Medicare patients by age, 2024

Dr. Nguyen's Medicare patients by sex, 2024

  • Women15464%
  • Men8836%

Chronic conditions among Dr. Nguyen's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Chronic kidney disease51%
  5. Diabetes51%
  6. Ischemic heart disease50%
  7. Atrial fibrillation44%
  8. Mood disorders44%

Share of Medicare patients with each condition. A patient can have several.

Dr. Nguyen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women54%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Trang T. Nguyen wrote 110 Medicare Part D claims in 2024

In 2024, Dr. Nguyen wrote 110 Medicare Part D claims for 57 patients. 90% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $83 in total drug cost. In 2019, CMS named 31 claims across 2 drugs.

Part D claims, 2024110
Drugs named by CMS1
Total drug cost$83
Part D patients57

Dr. Nguyen's Part D claims by kind of drug, 2024

  • Generic99 claims90%
  • Brand-name and other11 claims10%

Dr. Nguyen's most prescribed drugs by claims, 2020

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Nguyen's Part D claims, 2024

  • Antibiotics27%30 of 110 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 312020: 1358%

Drugs named by CMS: 1 in 2020, 2 in 2019.

See all prescribing by Dr. Nguyen

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Trang T. Nguyen takes part in Medicare

Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Trang T. Nguyen has 17 publications on record

Dmand AI links 17 papers to Dr. Nguyen, published from 2011 to 2015. 2011 was the busiest year, with 3. The most frequent topics are Bacteriocins, B-Lymphocytes and Lipid Bilayers. Dr. Nguyen has published most often in Anal Chem.

Papers17
Years published2011 to 2015

Topics Dr. Nguyen writes about most

  • Bacteriocins
  • B-Lymphocytes
  • Lipid Bilayers
  • Mice, Inbred C57BL
  • Streptococcus mutans
  • Autoimmune Diseases
  • Bacterial Proteins
  • B-Lymphocyte Subsets

Recent publications by Dr. Nguyen

See all 17 publications and co-authors

See who Dr. Nguyen researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nguyen works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Trang T. Nguyen received $593 in industry payments from 2017 to 2023

CMS Open Payments shows 17 general payments to Dr. Nguyen from 5 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $429.

General payments to Dr. Nguyen by program year, 2017 to 2023

Companies that paid Dr. Nguyen the most, 2017 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Nguyen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Trang T. Nguyen graduated from Arizona School of Dentistry and Oral Health - Mesa

Dr. Nguyen graduated from Arizona School of Dentistry and Oral Health - Mesa in 2012.

  1. Medical schoolArizona School of Dentistry and Oral Health - Mesa
  2. Board certified in internal medicineAOA Board of Internal Medicine
  3. Board certified in 2017 - 2025CA State License
  4. Board certified in 2016 - 2018NY State License

Source: Dmand AI Professional Profile Data

Dr. Trang T. Nguyen accepts plans from 3 insurance carriers

Dr. Nguyen is in network with 3 carriers, including Excellus BlueCross BlueShield, Elevance and CMS Medicare. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield
  • Elevance
  • CMS Medicare

Plan types Dr. Nguyen accepts, by number of carriers

  1. EPO2
  2. Medicare2
  3. POS2
  4. PPO2
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Trang T. Nguyen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Trang T. Nguyen

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Trang T. Nguyen's NPI number?

Dr. Trang T. Nguyen's NPI number is 1861836207. It was assigned on April 27, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Trang T. Nguyen?

Dr. Trang T. Nguyen is an internist in Murrieta, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Trang T. Nguyen practice?

Dr. Nguyen practices at 25500 Medical Center Drive, Murrieta, CA 92562. Dr. Nguyen's primary practice is Southwest Healthcare Rancho Springs Hospital in Murrieta, California, part of Universal Health Services. Dmand AI also links Dr. Nguyen to 1 group practice or clinic.

What is Dr. Trang T. Nguyen's office phone number?

The practice phone on file for Dr. Nguyen is (951) 696-6000.

What is Dr. Trang T. Nguyen's medical license number?

Dr. Nguyen holds California license 20A15645.

Which hospitals is Dr. Trang T. Nguyen affiliated with?

Dr. Nguyen practices at Southwest Healthcare Rancho Springs Hospital in Murrieta, California.

What medical group is Dr. Trang T. Nguyen part of?

Dr. Nguyen is linked to Acute Care Associates.

Does Dr. Trang T. Nguyen accept Medicare?

Yes. CMS data shows Dr. Nguyen billed Medicare for 769 services in 2024, and Dr. Nguyen accepts Medicare assignment.

How many Medicare patients does Dr. Trang T. Nguyen see?

CMS counts 242 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 76.

Is Dr. Trang T. Nguyen board certified?

Yes. Dr. Nguyen is board certified in internal medicine by the AOA Board of Internal Medicine.

Show 7 more questionsShow fewer questions

What services does Dr. Trang T. Nguyen bill to Medicare?

In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99233).

Where did Dr. Trang T. Nguyen go to medical school?

Dr. Nguyen graduated from Arizona School of Dentistry and Oral Health - Mesa in 2012.

What drugs does Dr. Trang T. Nguyen prescribe most?

In 2020 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass.

Has Dr. Trang T. Nguyen received payments from drug or device companies?

CMS Open Payments shows $593 in general payments to Dr. Nguyen from 5 companies from 2017 to 2023. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).

How long has Dr. Trang T. Nguyen been practicing?

Dr. Nguyen graduated from medical school in 2012, 14 years ago.

Does Dr. Trang T. Nguyen do research?

Dmand AI links 17 publications to Dr. Nguyen, published from 2011 to 2015.

What insurance does Dr. Trang T. Nguyen accept?

Dr. Nguyen is in network with 3 carriers, including Excellus BlueCross BlueShield, Elevance and CMS Medicare. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.

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