Dr. Hai Dong Nguyen, MD
- Medicare services, 2024
- 1,830
- Medicare patients, 2024
- 204
- Part D claims, 2024
- 1,196
- Hospital affiliations
- 2
- Industry payments
- $723
- Practice address
- 28062 Baxter Road, Murrieta, CA 92563
- Practice phone
- Call (951) 290-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Hai Dong Nguyen is an internist in Murrieta, California
Dr. Nguyen practices at Loma Linda University Medical Center - Murrieta in Murrieta, California, part of Seventh-day Adventist Church.
Dr. Nguyen's NPI, 1558516963, was assigned on November 26, 2008. Dr. Nguyen graduated from Ho Chi Minh City Medicine and Pharmacy University in 1997. Dr. Nguyen holds California license A114137.
- NPI
- 1558516963NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567630569
- NPI enumeration date
- November 26, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 290-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hai Dong Nguyen practices at Loma Linda University Medical Center - Murrieta in Murrieta, California
Dr. Nguyen's primary practice is Loma Linda University Medical Center - Murrieta, at 28062 Baxter Road, Murrieta, CA 92563 in Riverside County. The practice phone is (951) 290-4000.
- Loma Linda University Medical Center - Murrieta28062 Baxter Road, Murrieta, CA 92563 · Riverside CountyPhone(951) 290-4000
Source: Dmand AI Affiliation Data
Dr. Hai Dong Nguyen is affiliated with 6 sites of care and 6 medical groups
Dr. Nguyen's primary practice is Loma Linda University Medical Center - Murrieta in Murrieta, California, part of Seventh-day Adventist Church. Dr. Nguyen is also affiliated with Riverside Community Hospital. The medical group on file is Grace Hospitalist Group. Dmand AI also links Dr. Nguyen to 5 more medical groups, 2 group practices and clinics and 2 hospices, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hai Dong Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center - Murrieta | Available with a free account |
| +5 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Seventh-day Adventist Church and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Hai Dong Nguyen is one of 16,751 internists in California
Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nguyen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nguyen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure, cardiac arrhythmia, heart attack, kidney failure, mini-stroke (TIA), pneumonia and respiratory infection and sepsis among the conditions Dr. Nguyen treats.
Internists near Dr. Nguyen
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. Hai Dong Nguyen billed Medicare for 1,830 services in 2024
CMS data shows 1,830 Medicare services from Dr. Nguyen across 5 procedure codes in 2024, for 204 Medicare patients. Medicare paid $153,564 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3,2782024: 1,83044%
Dr. Nguyen compared with the California median for internists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 1,830vs 3615.1 times
- Medicare patients
- 204vs 15135% above
- Part D claims
- 903vs 4212.1 times
Medians across 15,815 internists 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 internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hai Dong Nguyen treated 204 Medicare patients in 2024, average age 74
CMS counts 204 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 71% are also on Medicaid. Their average risk score is 3.62, 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 51% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women12260%
- Men8240%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes68%
- Mood disorders56%
- Heart failure55%
- COPD54%
- Chronic kidney disease54%
- Anxiety50%
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
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hai Dong Nguyen wrote 1,196 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 1,196 Medicare Part D claims for 451 patients. 90% of them were for generic drugs. CMS names the drug for 903 of them, across 31 drugs with 11 or more claims each, at $26,545 in total drug cost. In 2023, CMS named 735 claims across 30 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic1,080 claims90%
- Brand-name and other116 claims10%
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
- Antibiotics21%251 of 1,196 claims
- Antipsychotics, patients 65 and over1%13 of 1,196 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: 7352024: 90323%
Drugs named by CMS: 31 in 2024, 30 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
How Dr. Hai Dong Nguyen takes part in Medicare
Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Hai Dong Nguyen received $723 in industry payments from 2016 to 2023
CMS Open Payments shows 38 general payments to Dr. Nguyen from 8 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $256.
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. Hai Dong Nguyen graduated from Ho Chi Minh City Medicine and Pharmacy University
Dr. Nguyen graduated from Ho Chi Minh City Medicine and Pharmacy University in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Hai Dong 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
- PPO9
- Medicare7
- HMO6
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Hai Dong 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) |
| 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) |
| 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. Hai Dong 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. Hai Dong Nguyen's NPI number?
Dr. Hai Dong Nguyen's NPI number is 1558516963. It was assigned on November 26, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Hai Dong Nguyen?
Dr. Hai Dong Nguyen is an internist in Murrieta, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Hai Dong Nguyen practice?
Dr. Nguyen practices at 28062 Baxter Road, Murrieta, CA 92563. Dr. Nguyen's primary practice is Loma Linda University Medical Center - Murrieta in Murrieta, California, part of Seventh-day Adventist Church. Dmand AI also links Dr. Nguyen to 5 medical groups, 2 group practices and clinics and 2 hospices.
What is Dr. Hai Dong Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (951) 290-4000.
What is Dr. Hai Dong Nguyen's medical license number?
Dr. Nguyen holds California license A114137.
Which hospitals is Dr. Hai Dong Nguyen affiliated with?
Dr. Nguyen practices at Loma Linda University Medical Center - Murrieta in Murrieta, California. Dr. Nguyen is also affiliated with Riverside Community Hospital.
What medical group is Dr. Hai Dong Nguyen part of?
Dr. Nguyen is linked to Grace Hospitalist Group. Dmand AI links Dr. Nguyen to 5 more medical groups.
Does Dr. Hai Dong Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 1,830 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Hai Dong Nguyen see?
CMS counts 204 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 74.
Is Dr. Hai Dong Nguyen board certified?
Yes. Dr. Nguyen is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Hai Dong Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Hai Dong Nguyen go to medical school?
Dr. Nguyen graduated from Ho Chi Minh City Medicine and Pharmacy University in 1997.
What drugs does Dr. Hai Dong Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Pantoprazole Sodium, Cephalexin and Atorvastatin Calcium.
Has Dr. Hai Dong Nguyen received payments from drug or device companies?
CMS Open Payments shows $723 in general payments to Dr. Nguyen from 8 companies from 2016 to 2023. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Hai Dong Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Hai Dong 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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