Dr. Quoc B. Nguyen, MD, MPH
- Part D claims, 2024
- 4,571
- Hospital affiliations
- 2
- Industry payments
- $257
- Medical group
- 1
- State license
- 1
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- 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. Quoc B. Nguyen is an internist in Harbor City, California
Dr. Nguyen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Nguyen's NPI, 1043240450, was assigned on July 3, 2006. Dr. Nguyen holds California license A94436.
- NPI
- 1043240450NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143227959
- NPI enumeration date
- July 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Quoc B. Nguyen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Nguyen's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Quoc B. Nguyen is affiliated with 3 sites of care and 1 medical group
Dr. Nguyen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dr. Nguyen is also affiliated with Orange County - Anaheim Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Nguyen to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Quoc B. Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Quoc B. 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 licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
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. Quoc B. Nguyen's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 45, with 54% women.
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 45
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Quoc B. Nguyen wrote 4,571 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 4,571 Medicare Part D claims for 609 patients. 85% of them were for generic drugs. CMS names the drug for 4,171 of them, across 90 drugs with 11 or more claims each, at $380,028 in total drug cost. In 2023, CMS named 4,200 claims across 84 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic3,899 claims85%
- Brand-name615 claims13%
- Other57 claims1%
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
- Opioids4%165 of 4,571 claims
- Antibiotics3%142 of 4,571 claims
- Antipsychotics, patients 65 and over0%18 of 4,571 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: 4,2002024: 4,1711%
Drugs named by CMS: 90 in 2024, 84 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. Quoc B. 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. Quoc B. Nguyen received $257 in industry payments from 2016 to 2025
CMS Open Payments shows 7 general payments to Dr. Nguyen from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $111.
General payments to Dr. Nguyen by program year, 2016 to 2025
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
Sources for Dr. Quoc B. 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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Quoc B. 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. Quoc B. Nguyen's NPI number?
Dr. Quoc B. Nguyen's NPI number is 1043240450. It was assigned on July 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Quoc B. Nguyen?
Dr. Quoc B. Nguyen is an internist in Harbor City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Quoc B. Nguyen practice?
Dr. Nguyen practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Nguyen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Dr. Nguyen to 1 group practice or clinic.
What is Dr. Quoc B. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (310) 325-5111.
What is Dr. Quoc B. Nguyen's medical license number?
Dr. Nguyen holds California license A94436.
Which hospitals is Dr. Quoc B. Nguyen affiliated with?
Dr. Nguyen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California. Dr. Nguyen is also affiliated with Orange County - Anaheim Medical Center.
What medical group is Dr. Quoc B. Nguyen part of?
Dr. Nguyen is linked to Southern California Permanente Medical Group.
Does Dr. Quoc B. Nguyen accept Medicare?
Yes. CMS lists Dr. Nguyen as accepting Medicare assignment.
Does Dr. Quoc B. Nguyen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nguyen as offering telehealth services.
What drugs does Dr. Quoc B. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Quoc B. Nguyen received payments from drug or device companies?
CMS Open Payments shows $257 in general payments to Dr. Nguyen from 6 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Quoc B. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2002, 24 years ago.
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