Dr. Tuan Nguyen, MD

  • San Diego, CA
  • Gastroenterologist
NPI1730270380PAC ID4082751227
Medicare services, 2024
392
Medicare patients, 2024
139
Part D claims, 2024
648
Publications
13
Hospital affiliations
2
Practice address
4141 Fairmount Ave, San Diego, CA 92105-1609
Practice phone
Call (619) 563-4040
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Tuan T. Nguyen, MD

Physician office · San Diego, California

See all 4 affiliations

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Dr. Tuan Nguyen is a gastroenterologist in San Diego, California

Dr. Nguyen practices at Tuan T. Nguyen, MD in San Diego, California.

Dr. Nguyen's NPI, 1730270380, was assigned on September 27, 2006. Dr. Nguyen graduated from Medical College of Wisconsin in 1988. Dr. Nguyen holds California license G68761.

NPI and contact details
Medicare PAC ID
4082751227
NPI enumeration date
September 27, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(619) 563-4040
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

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

Dr. Tuan Nguyen practices at Tuan T. Nguyen, MD in San Diego, California

Dr. Nguyen's primary practice is Tuan T. Nguyen, MD, at 4141 Fairmount Ave, San Diego, CA 92105-1609. The practice phone is (619) 563-4040.

  • Tuan T. Nguyen, MD
    4141 Fairmount Ave, San Diego, CA 92105-1609Phone(619) 563-4040

Source: Dmand AI Affiliation Data

Dr. Tuan Nguyen is affiliated with 3 sites of care and 1 medical group

Dr. Nguyen's primary practice is Tuan T. Nguyen, MD in San Diego, California. Dr. Nguyen is also affiliated with Sharp Memorial Hospital. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Nguyen to 1 more hospital, named with a free account.

See all 4 affiliations for Dr. Nguyen

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Tuan Nguyen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Tuan T. Nguyen, MDAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Tuan Nguyen is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nguyen is licensed in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense G68761 · taxonomy 207RG0100X

Gastroenterologists near Dr. Nguyen

Counts of gastroenterologists 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. Tuan Nguyen billed Medicare for 392 services in 2024

CMS data shows 392 Medicare services from Dr. Nguyen across 10 procedure codes in 2024, for 139 Medicare patients. Medicare paid $25,130 for them.

Medicare services, 2024392
Medicare patients139
Paid by Medicare$25,130
Procedure codes10

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

  • 2023
  • 2024
Office and hospital visits
2023: 4852024: 26745%
Surgery
2023: 1102024: 5550%
Other services
2023: 212024: 45114%
Imaging
2023: 152024: 2567%
Tests and treatments
2023: 122024: 0100%

Where Dr. Nguyen's Medicare services took place, 2024

  • In an office31881%
  • In a facility7419%

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

  • Dr. Nguyen
  • California median
Medicare services
392vs 58633% below
Medicare patients
139vs 30254% below
Part D claims
538vs 38042% above

Medians across 1,875 gastroenterologists 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. Tuan Nguyen treated 139 Medicare patients in 2024, average age 70

CMS counts 139 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 108 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.96, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 56, with 60% women.

Medicare patients, 2024139
Average age70
Average risk score0.96

Dr. Nguyen's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Nguyen's Medicare patients by sex, 2024

  • Women9871%
  • Men4129%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes45%
  4. Arthritis33%
  5. Osteoporosis29%
  6. Chronic kidney disease17%
  7. Asthma15%
  8. COPD14%

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 56

Patient panel by sex, all payers

  • Women60%
  • Men39%

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

Dr. Tuan Nguyen wrote 648 Medicare Part D claims in 2024

In 2024, Dr. Nguyen wrote 648 Medicare Part D claims for 186 patients. 50% of them were for generic drugs. CMS names the drug for 538 of them, across 12 drugs with 11 or more claims each, at $323,658 in total drug cost. In 2023, CMS named 463 claims across 11 drugs.

Part D claims, 2024648
Drugs named by CMS12
Total drug cost$323,658
Part D patients186

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

  • Generic327 claims50%
  • Brand-name321 claims50%

Dr. Nguyen's most prescribed drugs by claims, 2024

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

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 4632024: 53816%

Drugs named by CMS: 12 in 2024, 11 in 2023.

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

Dr. Tuan Nguyen ranks in the 56th percentile for colonoscopy in Medicare

Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nguyen as offering telehealth. CMS counts 35 procedures of colonoscopy by Dr. Nguyen, more than 56% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Nguyen ranks in Medicare procedure volume

Colonoscopy
56th percentile35 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
47th percentile16 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Tuan Nguyen has 13 publications on record

Dmand AI links 13 papers to Dr. Nguyen, published from 2009 to 2021. 2016 was the busiest year, with 2. The most frequent topics are Myocardial Infarction, ST Elevation Myocardial Infarction and Troponin T. Dr. Nguyen has published most often in Am Heart J.

Papers13
Years published2009 to 2021

Dr. Nguyen's papers by year, 2009 to 2021

Topics Dr. Nguyen writes about most

  • Myocardial Infarction
  • ST Elevation Myocardial Infarction
  • Troponin T
  • Acute Coronary Syndrome
  • Aortic Aneurysm
  • Coronary Vessels
  • Echocardiography
  • Magnetic Resonance Imaging, Cine

Recent publications by Dr. Nguyen

See all 13 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 gastroenterologists.

How network discovery works

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

Dr. Tuan Nguyen received $121,555 in industry payments from 2016 to 2025

CMS Open Payments shows 403 general payments to Dr. Nguyen from 28 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 63% of the total. Gilead Sciences, Inc. paid the most, $88,141.

General payments to Dr. Nguyen by program year, 2016 to 2025

General payments to Dr. Nguyen by kind, 2016 to 2025

$121.6Kin total
  • Speaker and faculty fees$76,27063%
  • Consulting fees$25,61021%
  • Food and beverage$10,9979%
  • Travel and lodging$8,6787%

Companies that paid Dr. Nguyen the most, 2016 to 2025

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. Tuan Nguyen graduated from Medical College of Wisconsin

Dr. Nguyen graduated from Medical College of Wisconsin in 1988.

  1. Medical schoolMedical College of Wisconsin

Source: Dmand AI Professional Profile Data

Sources for Dr. Tuan 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 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)Doctors and Clinicians Utilization Data (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
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. Tuan 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. Tuan Nguyen's NPI number?

Dr. Tuan Nguyen's NPI number is 1730270380. It was assigned on September 27, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Tuan Nguyen?

Dr. Tuan Nguyen is a gastroenterologist in San Diego, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Tuan Nguyen practice?

Dr. Nguyen practices at 4141 Fairmount Ave, San Diego, CA 92105-1609. Dr. Nguyen's primary practice is Tuan T. Nguyen, MD in San Diego, California. Dmand AI also links Dr. Nguyen to 1 hospital.

What is Dr. Tuan Nguyen's office phone number?

The practice phone on file for Dr. Nguyen is (619) 563-4040.

What is Dr. Tuan Nguyen's medical license number?

Dr. Nguyen holds California license G68761.

Which hospitals is Dr. Tuan Nguyen affiliated with?

Dr. Nguyen is affiliated with Sharp Memorial Hospital. Dmand AI links Dr. Nguyen to 1 more hospital.

What medical group is Dr. Tuan Nguyen part of?

Dr. Nguyen is linked to Emergency and Acute Care Medical Corporation.

Does Dr. Tuan Nguyen accept Medicare?

Yes. CMS data shows Dr. Nguyen billed Medicare for 392 services in 2024, and Dr. Nguyen accepts Medicare assignment.

Does Dr. Tuan Nguyen offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Nguyen as offering telehealth services.

How many Medicare patients does Dr. Tuan Nguyen see?

CMS counts 139 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 70.

Show 6 more questionsShow fewer questions

What services does Dr. Tuan Nguyen bill to Medicare?

In 2024, Dr. Nguyen's most billed Medicare services were office visit, established patient (99213), medicare service (G0500) and office visit, established patient (99214).

Where did Dr. Tuan Nguyen go to medical school?

Dr. Nguyen graduated from Medical College of Wisconsin in 1988.

What drugs does Dr. Tuan Nguyen prescribe most?

In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Vemlidy, Entecavir and Omeprazole.

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

CMS Open Payments shows $121,555 in general payments to Dr. Nguyen from 28 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.

How long has Dr. Tuan Nguyen been practicing?

Dr. Nguyen graduated from medical school in 1988, 38 years ago.

Does Dr. Tuan Nguyen do research?

Dmand AI links 13 publications to Dr. Nguyen, published from 2009 to 2021.

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