Dr. Nga P. Nguyen, MD
- Part D claims, 2024
- 3,072
- Hospital affiliations
- 1
- Industry payments
- $147
- Medical group
- 1
- State license
- 1
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, 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. Nga P. Nguyen is an internist in San Diego, California
Dr. Nguyen practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Nguyen's NPI, 1346447984, was assigned on June 28, 2007. Dr. Nguyen graduated from University of Southern California Keck School of Medicine in 2003. Dr. Nguyen holds California license A90046.
- NPI
- 1346447984NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315003506
- NPI enumeration date
- June 28, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nga P. Nguyen practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Nguyen's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nga P. Nguyen is affiliated with 3 sites of care and 1 medical group
Dr. Nguyen's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dr. Nguyen is also affiliated with Kaiser Permanente San Marcos 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: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nga P. 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 |
|---|---|
| Kaiser Permanente San Diego 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. Nga P. 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. Nga P. Nguyen's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 59, with 71% 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 59
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Dr. Nga P. Nguyen wrote 3,072 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 3,072 Medicare Part D claims for 356 patients. 89% of them were for generic drugs. CMS names the drug for 2,614 of them, across 63 drugs with 11 or more claims each, at $97,111 in total drug cost. In 2023, CMS named 2,360 claims across 61 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic2,726 claims89%
- Brand-name312 claims10%
- Other34 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
- Opioids1%25 of 3,072 claims
- Antibiotics2%55 of 3,072 claims
- Antipsychotics, patients 65 and over1%27 of 3,072 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: 2,3602024: 2,61411%
Drugs named by CMS: 63 in 2024, 61 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. Nga P. 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. Nga P. Nguyen received $147 in industry payments from 2017 to 2025
CMS Open Payments shows 4 general payments to Dr. Nguyen from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Millennium Pharmaceuticals, Inc. paid the most, $92.
General payments to Dr. Nguyen by program year, 2017 to 2025
Companies that paid Dr. Nguyen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nga P. Nguyen graduated from University of Southern California Keck School of Medicine
Dr. Nguyen graduated from University of Southern California Keck School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nga P. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Nga P. 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. Nga P. Nguyen's NPI number?
Dr. Nga P. Nguyen's NPI number is 1346447984. It was assigned on June 28, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Nga P. Nguyen?
Dr. Nga P. Nguyen is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nga P. Nguyen practice?
Dr. Nguyen practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Nguyen's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Nguyen to 1 group practice or clinic.
What is Dr. Nga P. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (619) 528-5000.
What is Dr. Nga P. Nguyen's medical license number?
Dr. Nguyen holds California license A90046.
Which hospitals is Dr. Nga P. Nguyen affiliated with?
Dr. Nguyen is affiliated with Kaiser Permanente San Marcos Medical Center.
What medical group is Dr. Nga P. Nguyen part of?
Dr. Nguyen is linked to Southern California Permanente Medical Group.
Does Dr. Nga P. Nguyen accept Medicare?
Yes. CMS lists Dr. Nguyen as accepting Medicare assignment.
Where did Dr. Nga P. Nguyen go to medical school?
Dr. Nguyen graduated from University of Southern California Keck School of Medicine in 2003.
What drugs does Dr. Nga P. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Rosuvastatin Calcium.
Has Dr. Nga P. Nguyen received payments from drug or device companies?
CMS Open Payments shows $147 in general payments to Dr. Nguyen from 4 companies from 2017 to 2025. The largest total came from Millennium Pharmaceuticals, Inc.
How long has Dr. Nga P. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2003, 23 years ago.
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