Dr. Truong-Sinh Leduc, MD

  • Fountain Valley, CA
  • Internist
NPI1457430886PAC ID3678662764
Medicare services, 2024
1,020
Medicare patients, 2024
519
Part D claims, 2024
2,093
Industry payments
$318,922
Affiliated sites
2
Practice address
10900 Warner Ave, Fountain Valley, CA 92708
Practice phone
Call (714) 698-1270
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

New Hope Surgery Center Inc.

Fountain Valley, California

See all 4 affiliations

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Dr. Truong-Sinh Leduc is an internist in Fountain Valley, California

Dr. Leduc practices at New Hope Surgery Center Inc. in Fountain Valley, California.

Dr. Leduc's NPI, 1457430886, was assigned on November 5, 2006. Dr. Leduc graduated from Rush Medical College in 1983. Dr. Leduc's California license number on file is G56656.

NPI and contact details
Medicare PAC ID
3678662764
NPI enumeration date
November 5, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(714) 698-1270
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
69
Medical school graduation
1983

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

Dr. Truong-Sinh Leduc practices at New Hope Surgery Center Inc. in Fountain Valley, California

Dr. Leduc's primary practice is New Hope Surgery Center Inc., at 10900 Warner Ave, Fountain Valley, CA 92708 in Orange County. The practice phone is (714) 698-1270.

  • New Hope Surgery Center Inc.
    10900 Warner Ave, Fountain Valley, CA 92708 · Orange CountyPhone(714) 698-1270

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Truong-Sinh Leduc is affiliated with 3 sites of care and 1 medical group

Dr. Leduc's primary practice is New Hope Surgery Center Inc. in Fountain Valley, California. Dmand AI also links Dr. Leduc to 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Leduc

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Truong-Sinh Leduc's practice

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

EHR by site
SiteEHR vendor and product
New Hope Surgery Center Inc.Available with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Truong-Sinh Leduc is one of 16,751 internists in California

Internal medicine is Dr. Leduc's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Leduc is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Leduc has a license on file in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G56656 · 1986 to 2025 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, cirrhosis of the liver, colonoscopy, gastroduodenitis, gastrointestinal bleeding, hemorrhoids and hepatitis c among the conditions Dr. Leduc treats.

Internists near Dr. Leduc

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. Truong-Sinh Leduc billed Medicare for 1,020 services in 2024

CMS data shows 1,020 Medicare services from Dr. Leduc across 8 procedure codes in 2024, for 519 Medicare patients. Medicare paid $120,576 for them.

Medicare services, 20241,020
Medicare patients519
Paid by Medicare$120,576
Procedure codes8

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

  • 2023
  • 2024
Office and hospital visits
2023: 8672024: 8502%
Surgery
2023: 1642024: 14710%
Other services
2023: 302024: 2323%

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

  • In an office85083%
  • In a facility17017%

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

  • Dr. Leduc
  • California median
Medicare services
1,020vs 3612.8 times
Medicare patients
519vs 1513.4 times
Part D claims
1,921vs 4214.6 times

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

Dr. Leduc'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. Leduc

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

Dr. Truong-Sinh Leduc treated 519 Medicare patients in 2024, average age 74

CMS counts 519 Medicare patients who saw Dr. Leduc in 2024. The largest group is 65 to 74, with 295 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 91% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Leduc's median patient age at 62, with 60% women.

Medicare patients, 2024519
Average age74
Average risk score1.33
Also on Medicaid91%

Dr. Leduc's Medicare patients by age, 2024

Dr. Leduc's Medicare patients by sex, 2024

  • Women31160%
  • Men20840%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis50%
  4. Diabetes48%
  5. Chronic kidney disease37%
  6. Osteoporosis32%
  7. Ischemic heart disease31%
  8. Heart failure15%

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

Dr. Leduc's patients across all payers

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

Patient panel by age, all payers

Median age 62

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. Truong-Sinh Leduc wrote 2,093 Medicare Part D claims in 2024

In 2024, Dr. Leduc wrote 2,093 Medicare Part D claims for 422 patients. 61% of them were for generic drugs. CMS names the drug for 1,921 of them, across 29 drugs with 11 or more claims each, at $1,150,560 in total drug cost. In 2023, CMS named 2,055 claims across 28 drugs.

Part D claims, 20242,093
Drugs named by CMS29
Total drug cost$1.2M
Part D patients422

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

  • Generic1,275 claims61%
  • Brand-name818 claims39%

Dr. Leduc'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.

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

  • Antibiotics1%16 of 2,093 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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,0552024: 1,9217%

Drugs named by CMS: 29 in 2024, 28 in 2023.

See all prescribing by Dr. Leduc

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. Truong-Sinh Leduc ranks in the 77th percentile for colonoscopy in Medicare

Dr. Leduc accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 90 procedures of colonoscopy by Dr. Leduc, more than 77% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Leduc ranks in Medicare procedure volume

Colonoscopy
77th percentile90 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
65th percentile56 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. Truong-Sinh Leduc received $318,922 in industry payments from 2016 to 2025

CMS Open Payments shows 510 general payments to Dr. Leduc from 22 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 84% of the total. Gilead Sciences, Inc. paid the most, $315,076.

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

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

$318.9Kin total
  • Speaker and faculty fees$267,67084%
  • Consulting fees$26,2408%
  • Travel and lodging$12,6234%
  • Food and beverage$12,2524%
  • Education$1380%

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

Share is of all general payments to this clinician.

See all payments to Dr. Leduc

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

Dr. Truong-Sinh Leduc has 1 award and honors on record

Dmand AI lists 1 award for Dr. Leduc, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Leduc

  1. 2012
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Truong-Sinh Leduc graduated from Rush Medical College

Dr. Leduc graduated from Rush Medical College in 1983. Dr. Leduc is a member of AGA.

  1. Medical schoolRush Medical College
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Truong-Sinh Leduc accepts plans from 9 insurance carriers

Dr. Leduc is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Molina
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Leduc accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. HMO4
  4. EPO2
  5. POS2

Source: Dmand AI Insurance Network Data

Sources for Dr. Truong-Sinh Leduc'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Truong-Sinh Leduc

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. Truong-Sinh Leduc's NPI number?

Dr. Truong-Sinh Leduc's NPI number is 1457430886. It was assigned on November 5, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Truong-Sinh Leduc?

Dr. Truong-Sinh Leduc is an internist in Fountain Valley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Truong-Sinh Leduc practice?

Dr. Leduc practices at 10900 Warner Ave, Fountain Valley, CA 92708. Dr. Leduc's primary practice is New Hope Surgery Center Inc. in Fountain Valley, California. Dmand AI also links Dr. Leduc to 1 physician office, 1 group practice or clinic and 1 medical group.

What is Dr. Truong-Sinh Leduc's office phone number?

The practice phone on file for Dr. Leduc is (714) 698-1270.

What is Dr. Truong-Sinh Leduc's medical license number?

Dr. Leduc's California license number on file is G56656.

Does Dr. Truong-Sinh Leduc accept Medicare?

Yes. CMS data shows Dr. Leduc billed Medicare for 1,020 services in 2024, and Dr. Leduc accepts Medicare assignment.

How many Medicare patients does Dr. Truong-Sinh Leduc see?

CMS counts 519 Medicare patients who saw Dr. Leduc in 2024, with an average age of 74.

Is Dr. Truong-Sinh Leduc board certified?

Yes. Dr. Leduc is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Truong-Sinh Leduc bill to Medicare?

In 2024, Dr. Leduc's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: digestive system (43239).

Where did Dr. Truong-Sinh Leduc go to medical school?

Dr. Leduc graduated from Rush Medical College in 1983.

Show 4 more questionsShow fewer questions

What drugs does Dr. Truong-Sinh Leduc prescribe most?

In 2024 Medicare Part D data, Dr. Leduc's most prescribed drugs by claims were Vemlidy, Famotidine and Baclofen.

Has Dr. Truong-Sinh Leduc received payments from drug or device companies?

CMS Open Payments shows $318,922 in general payments to Dr. Leduc from 22 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.

How long has Dr. Truong-Sinh Leduc been practicing?

Dr. Leduc graduated from medical school in 1983, 43 years ago.

What insurance does Dr. Truong-Sinh Leduc accept?

Dr. Leduc is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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