Dr. Khoa Huu Nguyen, MD
- Medicare services, 2023
- 19
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 10,399
- Hospital affiliations
- 1
- Industry payments
- $546
- 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. Khoa Huu 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, 1043253958, was assigned on June 14, 2006. Dr. Nguyen graduated from Meharry Medical College School of Medicine in 1999. Dr. Nguyen holds California license A85613.
- NPI
- 1043253958NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628044369
- NPI enumeration date
- June 14, 2006
- 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
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Khoa Huu 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. Khoa Huu Nguyen is affiliated with 2 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 Zion Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Khoa Huu Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices. 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 |
| +1 more affiliated site | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Khoa Huu 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. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Tennessee.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Tennessee license
Clinical focus
Dmand AI lists chronic diabetes, obesity and tobacco use 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. Khoa Huu Nguyen billed Medicare for 19 services in 2023
CMS data shows 19 Medicare services from Dr. Nguyen across 1 procedure code in 2023, all of them office visits, for 17 Medicare patients. Medicare paid $1,502 for them. Every service was in an office.
Dr. Nguyen's Medicare services by type, 2019 to 2023
- 2019
- 2023
- Office and hospital visits
- 2019: 162023: 1919%
Dr. Nguyen compared with the California median for internists, 2023
- Dr. Nguyen
- California median
- Medicare services
- 19vs 36195% below
- Medicare patients
- 17vs 15189% below
- Part D claims
- 9,914vs 42123.5 times
Medians across 15,815 internists 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 internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Khoa Huu Nguyen treated 17 Medicare patients in 2024, average age 63
CMS counts 17 Medicare patients who saw Dr. Nguyen in 2024. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 57, with 57% 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 57
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Khoa Huu Nguyen wrote 10,399 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 10,399 Medicare Part D claims for 1,158 patients. 91% of them were for generic drugs. CMS names the drug for 9,914 of them, across 141 drugs with 11 or more claims each, at $452,852 in total drug cost. In 2023, CMS named 8,605 claims across 122 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic9,426 claims91%
- Brand-name912 claims9%
- Other61 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
- Opioids9%929 of 10,399 claims
- Antibiotics3%325 of 10,399 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: 8,6052024: 9,91415%
Drugs named by CMS: 141 in 2024, 122 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. Khoa Huu 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Khoa Huu Nguyen received $546 in industry payments from 2018 to 2021
CMS Open Payments shows 5 general payments to Dr. Nguyen from 3 drug and device companies from 2018 to 2021. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $221.
General payments to Dr. Nguyen by program year, 2018 to 2021
Companies that paid Dr. Nguyen the most, 2018 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Khoa Huu Nguyen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nguyen, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Nguyen
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Khoa Huu Nguyen graduated from Meharry Medical College School of Medicine
Dr. Nguyen graduated from Meharry Medical College School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Khoa Huu Nguyen accepts plans from 2 insurance carriers
Dr. Nguyen is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Nguyen accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Khoa Huu 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 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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 Huu 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 Huu Nguyen's NPI number?
Dr. Khoa Huu Nguyen's NPI number is 1043253958. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Khoa Huu Nguyen?
Dr. Khoa Huu 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. Khoa Huu 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.
What is Dr. Khoa Huu Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (619) 528-5000.
What is Dr. Khoa Huu Nguyen's medical license number?
Dr. Nguyen holds California license A85613, one of the licenses on file in 2 states.
Which states has Dr. Khoa Huu Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in California (2004 to 2026) and Tennessee (2002 to 2005).
Which hospitals is Dr. Khoa Huu Nguyen affiliated with?
Dr. Nguyen is affiliated with Kaiser Permanente Zion Medical Center.
What medical group is Dr. Khoa Huu Nguyen part of?
Dr. Nguyen is linked to Southern California Permanente Medical Group.
Does Dr. Khoa Huu Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 19 services in 2023, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Khoa Huu Nguyen see?
CMS counts 17 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 63.
Show 6 more questionsShow fewer questions
What services does Dr. Khoa Huu Nguyen bill to Medicare?
In 2023, Dr. Nguyen's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Khoa Huu Nguyen go to medical school?
Dr. Nguyen graduated from Meharry Medical College School of Medicine in 1999.
What drugs does Dr. Khoa Huu Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Lisinopril.
Has Dr. Khoa Huu Nguyen received payments from drug or device companies?
CMS Open Payments shows $546 in general payments to Dr. Nguyen from 3 companies from 2018 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Khoa Huu Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Khoa Huu Nguyen accept?
Dr. Nguyen is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card