Dr. Steven Nguyen, DO
- Medicare services, 2024
- 483
- Medicare patients, 2024
- 313
- Part D claims, 2024
- 376
- Hospital affiliations
- 2
- Industry payments
- $46
- Practice address
- 1350 W Covina Blvd, San Dimas, CA 91773
- Practice phone
- Call (909) 599-6811
- 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. Steven Nguyen is an emergency medicine physician in San Dimas, California
Dr. Nguyen practices at San Dimas Community Hospital in San Dimas, California, part of Prime Healthcare Services.
Dr. Nguyen's NPI, 1891289443, was assigned on June 18, 2018. Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018. Dr. Nguyen holds California license 19923.
- NPI
- 1891289443NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597141135
- NPI enumeration date
- June 18, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 599-6811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven Nguyen practices at San Dimas Community Hospital in San Dimas, California
Dr. Nguyen's primary practice is San Dimas Community Hospital, at 1350 W Covina Blvd, San Dimas, CA 91773 in Los Angeles County. The practice phone is (909) 599-6811.
- San Dimas Community Hospital1350 W Covina Blvd, San Dimas, CA 91773 · Los Angeles CountyPhone(909) 599-6811
Source: Dmand AI Affiliation Data
Dr. Steven Nguyen is affiliated with 2 sites of care and 6 medical groups
Dr. Nguyen's primary practice is San Dimas Community Hospital in San Dimas, California, part of Prime Healthcare Services. Dr. Nguyen is also affiliated with Huntington Hospital. The medical group on file is San Dimas Community Hospital. Dmand AI also links Dr. Nguyen to 5 more medical groups, 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. Steven 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 |
|---|---|
| San Dimas Community Hospital | Available with a free account |
| +1 more site 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 Prime Healthcare Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven 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. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Nguyen
Counts of emergency medicine physicians 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. Steven Nguyen billed Medicare for 483 services in 2024
CMS data shows 483 Medicare services from Dr. Nguyen across 5 procedure codes in 2024, for 313 Medicare patients. Medicare paid $38,682 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: 2802024: 31211%
- Tests and treatments
- 2023: 1222024: 1137%
- Imaging
- 2023: 252024: 58132%
Dr. Nguyen compared with the California median for emergency medicine physicians, 2024
- Dr. Nguyen
- California median
- Medicare services
- 483vs 26582% above
- Medicare patients
- 313vs 24329% above
- Part D claims
- 221vs 623.6 times
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, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven Nguyen treated 313 Medicare patients in 2024, average age 69
CMS counts 313 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 113 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 81% are also on Medicaid. Their average risk score is 2.75, 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 46, with 55% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women17556%
- Men13844%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Diabetes55%
- Arthritis51%
- Mood disorders50%
- Depression44%
- Anxiety43%
- Heart failure41%
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 46
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven Nguyen wrote 376 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 376 Medicare Part D claims for 221 patients. 97% of them were for generic drugs. CMS names the drug for 221 of them, across 9 drugs with 11 or more claims each, at $946 in total drug cost. In 2023, CMS named 147 claims across 8 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic363 claims97%
- Brand-name13 claims3%
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
- Opioids9%34 of 376 claims
- Antibiotics31%115 of 376 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: 1472024: 22150%
Drugs named by CMS: 9 in 2024, 8 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. Steven 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. Steven Nguyen received $46 in industry payments in 2019
CMS Open Payments shows 2 general payments to Dr. Nguyen from 2 drug and device companies in 2019. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $30.
Companies that paid Dr. Nguyen the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018.
- Medical school
- Board certified in emergency medicine
- Board certified in 2022 - 2026
- Board certified in 2018 - 2022
Source: Dmand AI Professional Profile Data
Dr. Steven Nguyen accepts plans from 6 insurance carriers
Dr. Nguyen is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Nguyen accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Steven 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. Steven 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. Steven Nguyen's NPI number?
Dr. Steven Nguyen's NPI number is 1891289443. It was assigned on June 18, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven Nguyen?
Dr. Steven Nguyen is an emergency medicine physician in San Dimas, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Steven Nguyen practice?
Dr. Nguyen practices at 1350 W Covina Blvd, San Dimas, CA 91773. Dr. Nguyen's primary practice is San Dimas Community Hospital in San Dimas, California, part of Prime Healthcare Services. Dmand AI also links Dr. Nguyen to 5 medical groups.
What is Dr. Steven Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (909) 599-6811.
What is Dr. Steven Nguyen's medical license number?
Dr. Nguyen holds California license 19923, one of the licenses on file in 2 states.
Which states has Dr. Steven Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in California and Pennsylvania.
Which hospitals is Dr. Steven Nguyen affiliated with?
Dr. Nguyen practices at San Dimas Community Hospital in San Dimas, California. Dr. Nguyen is also affiliated with Huntington Hospital.
What medical group is Dr. Steven Nguyen part of?
Dr. Nguyen is linked to San Dimas Community Hospital. Dmand AI links Dr. Nguyen to 5 more medical groups.
Does Dr. Steven Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 483 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Steven Nguyen see?
CMS counts 313 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
Is Dr. Steven Nguyen board certified?
Yes. Dr. Nguyen is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Steven Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Steven Nguyen go to medical school?
Dr. Nguyen graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018.
What drugs does Dr. Steven Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Ibuprofen, Cephalexin and Azithromycin.
Has Dr. Steven Nguyen received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to Dr. Nguyen from 2 companies from 2019 to 2019. The largest total came from Abbott Laboratories.
How long has Dr. Steven Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2018, 8 years ago.
What insurance does Dr. Steven Nguyen accept?
Dr. Nguyen is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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