Dr. Thanh The Nguyen, DO

  • Simi Valley, CA
  • Interventional cardiologist
NPI1134165194PAC ID7911944038
Medicare services, 2024
5,069
Medicare patients, 2024
1,001
Part D claims, 2024
7,147
Publications
1
MIPS score, 2024
96
Practice address
2975 N Sycamore Dr, Simi Valley, CA 93065
Practice phone
Call (805) 955-6000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Adventist Health Simi Valley

Hospital · Simi Valley, California

See all 5 affiliations

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Dr. Thanh The Nguyen is an interventional cardiologist in Simi Valley, California

Dr. Nguyen practices at Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health.

Dr. Nguyen's NPI, 1134165194, was assigned on June 20, 2006. Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 1994. Dr. Nguyen holds California license 20A7029.

NPI and contact details
Medicare PAC ID
7911944038
NPI enumeration date
June 20, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(805) 955-6000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
58
Medical school graduation
1994

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

Dr. Thanh The Nguyen practices at Adventist Health Simi Valley in Simi Valley, California

Dr. Nguyen's primary practice is Adventist Health Simi Valley, at 2975 N Sycamore Dr, Simi Valley, CA 93065 in Ventura County. The practice phone is (805) 955-6000.

Source: Dmand AI Affiliation Data

Dr. Thanh The Nguyen is affiliated with 4 sites of care and 1 medical group

Dr. Nguyen's primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dr. Nguyen is also affiliated with Adventist Health Glendale. The medical group on file is Adventist Health Physicians Network. Dmand AI also links Dr. Nguyen to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Nguyen

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

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

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Adventist Health Simi ValleyAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Thanh The Nguyen is one of 582 interventional cardiologists in California

Interventional cardiology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Nguyen is board certified in interventional cardiology by the American Board of Internal Medicine. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Utah.

Specialties and state licenses

  • Interventional cardiology, CaliforniaPrimaryLicense 20A7029 · 1997 to 2027 · taxonomy 207RI0011X
  • Utah license1989 to 2003

Clinical focus

Dmand AI lists aneurysm, angioplasty, atrial fibrillation and flutter, cardiac catheterization, cardiomyopathy, cerebrovascular disease, chronic embolism thrombosis and chronic hypertension among the conditions Dr. Nguyen treats.

Interventional cardiologists near Dr. Nguyen

Counts of interventional cardiologists 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. Thanh The Nguyen billed Medicare for 5,069 services in 2024

CMS data shows 5,069 Medicare services from Dr. Nguyen across 30 procedure codes in 2024, for 1,001 Medicare patients. Medicare paid $334,468 for them.

Medicare services, 20245,069
Medicare patients1,001
Paid by Medicare$334,468
Procedure codes30

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

  • 2023
  • 2024
Office and hospital visits
2023: 2,8522024: 2,53811%
Tests and treatments
2023: 1,6152024: 1,7689%
Drugs given in the office
2023: 4882024: 34030%
Surgery
2023: 2912024: 25413%
Imaging
2023: 1222024: 8729%
Other services
2023: 2982024: 8272%

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

  • In an office3,60571%
  • In a facility1,46429%

Dr. Nguyen compared with the California median for interventional cardiologists, 2024

  • Dr. Nguyen
  • California median
Medicare services
5,069vs 2,3872.1 times
Medicare patients
1,001vs 75133% above
Part D claims
6,684vs 1,8263.7 times

Medians across 573 interventional cardiologists 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other interventional cardiologists in California.

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

Dr. Thanh The Nguyen treated 1,001 Medicare patients in 2024, average age 77

CMS counts 1,001 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 394 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.62, 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 75, with 50% women.

Medicare patients, 20241,001
Average age77
Average risk score1.62
Also on Medicaid21%

Dr. Nguyen's Medicare patients by age, 2024

Dr. Nguyen's Medicare patients by sex, 2024

  • Women51451%
  • Men48749%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Ischemic heart disease44%
  5. Diabetes42%
  6. Atrial fibrillation39%
  7. Chronic kidney disease33%
  8. Heart failure33%

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 75

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Dr. Thanh The Nguyen wrote 7,147 Medicare Part D claims in 2024

In 2024, Dr. Nguyen wrote 7,147 Medicare Part D claims for 861 patients. 87% of them were for generic drugs. CMS names the drug for 6,684 of them, across 83 drugs with 11 or more claims each, at $945,266 in total drug cost. In 2023, CMS named 6,974 claims across 85 drugs.

Part D claims, 20247,147
Drugs named by CMS83
Total drug cost$945,266
Part D patients861

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

  • Generic6,196 claims87%
  • Brand-name and other951 claims13%

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.

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

  • Opioids0%16 of 7,147 claims
  • Antibiotics0%24 of 7,147 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: 6,9742024: 6,6844%

Drugs named by CMS: 83 in 2024, 85 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. Thanh The Nguyen scored 96 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Nguyen for performance year 2024, reported through an alternative payment model (APM). Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nguyen as offering telehealth. CMS counts 44 procedures of coronary angioplasty and stenting by Dr. Nguyen, more than 80% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Nguyen's MIPS scores, performance year 2024

  • 96of 100Final score
  • 81.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Nguyen ranks in Medicare procedure volume

Coronary angioplasty and stenting
80th percentile44 procedures

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

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Thanh The Nguyen has 1 publication on record

Dmand AI links 1 paper to Dr. Nguyen.

Papers1

Recent publications by Dr. Nguyen

See all 1 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 interventional cardiologists.

How network discovery works

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

Dr. Thanh The Nguyen received $32,511 in industry payments from 2016 to 2025

CMS Open Payments shows 632 general payments to Dr. Nguyen from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Abbott Laboratories paid the most, $14,844.

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

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

$32.5Kin total
  • Food and beverage$29,56191%
  • Travel and lodging$2,8719%
  • Education$790%

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. Thanh The Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific

Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 1994. Dr. Nguyen is a member of ACC.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific
  2. Board certified in interventional cardiologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Thanh The Nguyen accepts plans from 15 insurance carriers

Dr. Nguyen is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Nguyen accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Thanh The 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)Clinician Public Reporting: Overall MIPS Performance (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
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. Thanh The 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. Thanh The Nguyen's NPI number?

Dr. Thanh The Nguyen's NPI number is 1134165194. It was assigned on June 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thanh The Nguyen?

Dr. Thanh The Nguyen is an interventional cardiologist in Simi Valley, California. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).

Where does Dr. Thanh The Nguyen practice?

Dr. Nguyen practices at 2975 N Sycamore Dr, Simi Valley, CA 93065. Dr. Nguyen's primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dmand AI also links Dr. Nguyen to 1 hospital and 1 group practice or clinic.

What is Dr. Thanh The Nguyen's office phone number?

The practice phone on file for Dr. Nguyen is (805) 955-6000.

What is Dr. Thanh The Nguyen's medical license number?

Dr. Nguyen holds California license 20A7029, one of the licenses on file in 2 states.

Which states has Dr. Thanh The Nguyen been licensed in?

Dmand AI has state licenses on file for Dr. Nguyen in California (1997 to 2027) and Utah (1989 to 2003).

Which hospitals is Dr. Thanh The Nguyen affiliated with?

Dr. Nguyen practices at Adventist Health Simi Valley in Simi Valley, California. Dr. Nguyen is also affiliated with Adventist Health Glendale. Dmand AI links Dr. Nguyen to 1 more hospital.

What medical group is Dr. Thanh The Nguyen part of?

Dr. Nguyen is linked to Adventist Health Physicians Network.

Does Dr. Thanh The Nguyen accept Medicare?

Yes. CMS data shows Dr. Nguyen billed Medicare for 5,069 services in 2024, and Dr. Nguyen accepts Medicare assignment.

Does Dr. Thanh The Nguyen offer telehealth?

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

Show 10 more questionsShow fewer questions

What is Dr. Thanh The Nguyen's MIPS score?

Dr. Nguyen's MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Thanh The Nguyen see?

CMS counts 1,001 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 77.

Is Dr. Thanh The Nguyen board certified?

Yes. Dr. Nguyen is board certified in interventional cardiology by the American Board of Internal Medicine.

What services does Dr. Thanh The Nguyen bill to Medicare?

In 2024, Dr. Nguyen's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and injected or infused drug (J2785).

Where did Dr. Thanh The Nguyen go to medical school?

Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 1994.

What drugs does Dr. Thanh The Nguyen prescribe most?

In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Clopidogrel.

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

CMS Open Payments shows $32,511 in general payments to Dr. Nguyen from 31 companies from 2016 to 2025. The largest total came from Abbott Laboratories.

How long has Dr. Thanh The Nguyen been practicing?

Dr. Nguyen graduated from medical school in 1994, 32 years ago.

Does Dr. Thanh The Nguyen do research?

Dmand AI links 1 publication to Dr. Nguyen.

What insurance does Dr. Thanh The Nguyen accept?

Dr. Nguyen is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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