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Dr. Khoa D. Nguyen, MD
NPI1831277565
- Medicare services, 2023
- 12
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 265
- Publications
- 10
- Hospital affiliations
- 2
- Practice address
- 1600 Eureka Road, Roseville, CA 95661
- Practice phone
- Call (916) 784-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Khoa D. Nguyen is an emergency medicine physician in Roseville, California
Dr. Nguyen practices at Roseville Medical Center in Roseville, California, part of Kaiser Permanente.
Dr. Nguyen's NPI, 1831277565, was assigned on November 1, 2006. Dr. Nguyen graduated from UC Irvine School of Medicine in 1998. Dr. Nguyen's California license number on file is A70637.
NPI and contact details
- NPI
- 1831277565NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (916) 784-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Khoa D. Nguyen practices at Roseville Medical Center in Roseville, California
Dr. Nguyen's primary practice is Roseville Medical Center, at 1600 Eureka Road, Roseville, CA 95661 in Placer County. The practice phone is (916) 784-4000.
- Roseville Medical Center1600 Eureka Road, Roseville, CA 95661 · Placer CountyPhone(916) 784-4000
Source: Dmand AI Affiliation Data
Dr. Khoa D. Nguyen is affiliated with 2 sites of care and 1 medical group
Dr. Nguyen's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente. Dr. Nguyen is also affiliated with Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Khoa D. 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.
| Site | EHR vendor and product |
|---|---|
| Roseville Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Khoa D. Nguyen is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Nguyen is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Nguyen has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Nguyen
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
7,423emergency medicine physicians in California106emergency medicine physicians in Roseville54emergency medicine physicians at Roseville Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Khoa D. Nguyen billed Medicare for 12 services in 2023
CMS data shows 12 Medicare services from Dr. Nguyen across 1 procedure code in 2023, for 14 Medicare patients. Medicare paid $909 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202312
Medicare patients14
Paid by Medicare$909
Procedure codes1
Dr. Nguyen's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 142023: 1214%
Dr. Nguyen compared with the California median for emergency medicine physicians, 2023
- Dr. Nguyen
- California median
- Medicare services
- 12vs 26595% below
- Medicare patients
- 14vs 24394% below
- Part D claims
- 74vs 6219% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2023
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 emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Khoa D. Nguyen treated 14 Medicare patients in 2024, average age 67
CMS counts 14 Medicare patients who saw Dr. Nguyen in 2024. 75% of them have high blood pressure. Their average risk score is 1.78, 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 36, with 56% women.
Medicare patients, 202414
Average age67
Average risk score1.78
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
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 36
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Khoa D. Nguyen wrote 265 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 265 Medicare Part D claims for 162 patients. 89% of them were for generic drugs. CMS names the drug for 74 of them, across 5 drugs with 11 or more claims each, at $611 in total drug cost. In 2023, CMS named 118 claims across 6 drugs.
Part D claims, 2024265
Drugs named by CMS5
Total drug cost$611
Part D patients162
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic236 claims89%
- Brand-name29 claims11%
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
- Opioids16%42 of 265 claims
- Antibiotics22%57 of 265 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: 1182024: 7437%
Drugs named by CMS: 5 in 2024, 6 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
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Dr. Khoa D. Nguyen has 10 publications on record
Dmand AI links 10 papers to Dr. Nguyen, published from 2007 to 2013. 2009 was the busiest year, with 3. The most frequent topics are Arthritis, Juvenile, Monocytes and Phenotype. Dr. Nguyen has published most often in Clin Immunol. Dr. Nguyen's most frequent co-authors are Tzielan Chang Lee, MD, Diana Milojevic, MD and Jane Lee Park, MD.
Papers10
Years published2007 to 2013
Dr. Nguyen's papers by year, 2007 to 2013
Topics Dr. Nguyen writes about most
- Arthritis, Juvenile
- Monocytes
- Phenotype
- T-Lymphocyte Subsets
Dr. Nguyen's most frequent co-authors
- Tzielan Chang Lee, MD3 shared papers
- Diana Milojevic, MD2 shared papers
- Jane Lee Park, MD2 shared papers
Recent publications by Dr. Nguyen
Clin Immunol
Arthritis, JuvenileCells, CulturedCytokines
Arthritis, JuvenileBlood ProteinsDiagnosis, Differential
Arthritis, JuvenileB-LymphocytesCell Separation
Nat Rev Rheumatol
Adaptive ImmunityArthritis, JuvenileGenetic Predisposition to Disease
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 emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Khoa D. Nguyen received $317 in industry payments from 2016 to 2023
CMS Open Payments shows 10 general payments to Dr. Nguyen from 5 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Nobel Biocare USA paid the most, $99.
General payments to Dr. Nguyen by program year, 2016 to 2023
Companies that paid Dr. Nguyen the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Khoa D. Nguyen graduated from UC Irvine School of Medicine
Dr. Nguyen graduated from UC Irvine School of Medicine in 1998.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Khoa D. Nguyen accepts plans from 1 insurance carrier
Dr. Nguyen is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Nguyen accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Khoa D. 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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Khoa D. 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. Khoa D. Nguyen's NPI number?
Dr. Khoa D. Nguyen's NPI number is 1831277565. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Khoa D. Nguyen?
Dr. Khoa D. Nguyen is an emergency medicine physician in Roseville, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Khoa D. Nguyen practice?
Dr. Nguyen practices at 1600 Eureka Road, Roseville, CA 95661. Dr. Nguyen's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente.
What is Dr. Khoa D. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (916) 784-4000.
What is Dr. Khoa D. Nguyen's medical license number?
Dr. Nguyen's California license number on file is A70637.
Which hospitals is Dr. Khoa D. Nguyen affiliated with?
Dr. Nguyen practices at Roseville Medical Center in Roseville, California. Dr. Nguyen is also affiliated with Sacramento Medical Center.
What medical group is Dr. Khoa D. Nguyen part of?
Dr. Nguyen is linked to The Permanente Medical Group, Inc.
Does Dr. Khoa D. Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 12 services in 2023.
How many Medicare patients does Dr. Khoa D. Nguyen see?
CMS counts 14 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 67.
Is Dr. Khoa D. Nguyen board certified?
Yes. Dr. Nguyen is board certified in emergency medicine by the American Board of Emergency Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Khoa D. Nguyen bill to Medicare?
In 2023, Dr. Nguyen's most billed Medicare services were emergency department visit (99284).
Where did Dr. Khoa D. Nguyen go to medical school?
Dr. Nguyen graduated from UC Irvine School of Medicine in 1998.
What drugs does Dr. Khoa D. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Oxycodone HCl.
Has Dr. Khoa D. Nguyen received payments from drug or device companies?
CMS Open Payments shows $317 in general payments to Dr. Nguyen from 5 companies from 2016 to 2023. The largest total came from Nobel Biocare USA.
How long has Dr. Khoa D. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1998, 28 years ago.
Does Dr. Khoa D. Nguyen do research?
Dmand AI links 10 publications to Dr. Nguyen, published from 2007 to 2013.
Who does Dr. Khoa D. Nguyen publish with?
Dr. Nguyen's most frequent co-authors are Tzielan Chang Lee, MD (3 shared papers), Diana Milojevic, MD (2 shared papers) and Jane Lee Park, MD (2 shared papers).
What insurance does Dr. Khoa D. Nguyen accept?
Dr. Nguyen is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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