Dr. An Duy Nguyen, MD
- Medicare services, 2024
- 1,883
- Medicare patients, 2024
- 296
- Part D claims, 2024
- 588
- Hospital affiliations
- 1
- Industry payments
- $5,864
- Practice address
- 330 Old Newport Blvd, Newport Beach, CA 92663
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD
Acute Care Hospital outpatient department · Newport Beach, California
Find Dr. Nguyen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. An Duy Nguyen is a hematologist and oncologist in Newport Beach, California
Dr. Nguyen practices at Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD in Newport Beach, California.
Dr. Nguyen's NPI, 1023011384, was assigned on May 31, 2005. Dr. Nguyen graduated from Albany Medical College in 1998. Dr. Nguyen holds California license A78574.
- NPI
- 1023011384NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294710547
- NPI enumeration date
- May 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. An Duy Nguyen practices at Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD in Newport Beach, California
Dr. Nguyen's primary practice is Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD, at 330 Old Newport Blvd, Newport Beach, CA 92663.
- Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD330 Old Newport Blvd, Newport Beach, CA 92663
Source: Dmand AI Affiliation Data
Dr. An Duy Nguyen is affiliated with 4 sites of care and 1 medical group
Dr. Nguyen's primary practice is Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD in Newport Beach, California. Dr. Nguyen is also affiliated with Hoag Hospital Newport Beach. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Nguyen to 1 more group practice or clinic and 1 other site, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. An Duy 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.
| Site | EHR vendor and product |
|---|---|
| Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. An Duy Nguyen is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Nguyen is board certified in medical oncology by the American Board of Internal Medicine. Dr. Nguyen is licensed in California.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
Clinical focus
Dmand AI lists breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT), immune deficiency disease and lung cancer among the conditions Dr. Nguyen treats.
Hematologists and oncologists near Dr. Nguyen
Counts of hematologists and oncologists 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. An Duy Nguyen billed Medicare for 1,883 services in 2024
CMS data shows 1,883 Medicare services from Dr. Nguyen across 5 procedure codes in 2024, for 296 Medicare patients. Medicare paid $148,771 for them. Every service was in an office.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1992024: 1,1742%
- Other services
- 2023: 3852024: 70984%
Dr. Nguyen compared with the California median for hematologists and oncologists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 1,883vs 9322.0 times
- Medicare patients
- 296vs 22532% above
- Part D claims
- 318vs 39419% below
Medians across 1,367 hematologists and oncologists 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.
Need commercial claims for Dr. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. An Duy Nguyen treated 296 Medicare patients in 2024, average age 77
CMS counts 296 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 75 to 84, with 140 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.89, 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 76, with 61% women.
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
- Women18161%
- Men11539%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Cancer46%
- Osteoporosis36%
- Diabetes35%
- Chronic kidney disease33%
- Ischemic heart disease32%
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 76
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. An Duy Nguyen wrote 588 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 588 Medicare Part D claims for 95 patients. 88% of them were for generic drugs. CMS names the drug for 318 of them, across 18 drugs with 11 or more claims each, at $10,502 in total drug cost. In 2023, CMS named 288 claims across 15 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic515 claims88%
- Brand-name and other73 claims12%
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
- Opioids2%12 of 588 claims
- Antibiotics3%16 of 588 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: 2882024: 31810%
Drugs named by CMS: 18 in 2024, 15 in 2023.
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. An Duy Nguyen offers telehealth to Medicare patients
Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nguyen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. An Duy Nguyen received $5,864 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Nguyen from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 79% of the total. AstraZeneca Pharmaceuticals LP paid the most, $5,148.
General payments to Dr. Nguyen by program year, 2016 to 2025
General payments to Dr. Nguyen by kind, 2016 to 2025
- Consulting fees$4,65079%
- Food and beverage$1,07918%
- Education$1172%
- Travel and lodging$190%
Companies that paid Dr. Nguyen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. An Duy Nguyen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nguyen, most recently CMS Stage 1 EHR in 2014.
Awards and honors for Dr. Nguyen
- 2014
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. An Duy Nguyen graduated from Albany Medical College
Dr. Nguyen graduated from Albany Medical College in 1998.
- Medical school
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. An Duy Nguyen accepts plans from 11 insurance carriers
Dr. Nguyen is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +3 more carriersWith a free account
Plan types Dr. Nguyen accepts, by number of carriers
- Medicare8
- PPO7
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. An Duy Nguyen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. An Duy 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. An Duy Nguyen's NPI number?
Dr. An Duy Nguyen's NPI number is 1023011384. It was assigned on May 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. An Duy Nguyen?
Dr. An Duy Nguyen is a hematologist and oncologist in Newport Beach, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. An Duy Nguyen practice?
Dr. Nguyen practices at 330 Old Newport Blvd, Newport Beach, CA 92663. Dr. Nguyen's primary practice is Keck Medicine of USC - USC Norris Oncology/Hematology Newport Beach - Oncology, Hematology, Cancer Therapy, Blood Disorders - HOPD in Newport Beach, California. Dmand AI also links Dr. Nguyen to 1 group practice or clinic and 1 other site.
What is Dr. An Duy Nguyen's medical license number?
Dr. Nguyen holds California license A78574.
Which hospitals is Dr. An Duy Nguyen affiliated with?
Dr. Nguyen is affiliated with Hoag Hospital Newport Beach.
What medical group is Dr. An Duy Nguyen part of?
Dr. Nguyen is linked to USC Care Medical Group.
Does Dr. An Duy Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 1,883 services in 2024, and Dr. Nguyen accepts Medicare assignment.
Does Dr. An Duy Nguyen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nguyen as offering telehealth services.
How many Medicare patients does Dr. An Duy Nguyen see?
CMS counts 296 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 77.
Is Dr. An Duy Nguyen board certified?
Yes. Dr. Nguyen is board certified in medical oncology by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. An Duy Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were office visit, established patient (99215), medicare service (G2212) and office visit, established patient (99214).
Where did Dr. An Duy Nguyen go to medical school?
Dr. Nguyen graduated from Albany Medical College in 1998.
What drugs does Dr. An Duy Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Letrozole, Gabapentin and Hydralazine HCl.
Has Dr. An Duy Nguyen received payments from drug or device companies?
CMS Open Payments shows $5,864 in general payments to Dr. Nguyen from 13 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. An Duy Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1998, 28 years ago.
What insurance does Dr. An Duy Nguyen accept?
Dr. Nguyen is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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