Caroline Nguyen, P.A.
Physician Assistant · Orange, CA
Caroline Nguyen, P.A. is a physician assistant with a practice address in Orange, California, and NPI 1669897047, issued on Feb 21, 2014. Check the license (California 51442, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caroline Nguyen
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 51442 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S Bldg 29, Orange, CA 92868
- Phone
- (714) 456-7005
- Enumerated
- Feb 21, 2014
- Record last updated
- Mar 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20140404001280); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 101 The City Dr S Bldg 29
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elia Abou Chawareb, MDStudent in an Organized Health Care Education/Training Program1568314656
- Fawaz Al Ammary, M.D.Nephrology Physician1992918916
- Rosa Andrade, MDInfectious Disease Physician1093919680
- Daisy ChenStudent in an Organized Health Care Education/Training Program1932968682
- Edward Choi, MD, MSCStudent in an Organized Health Care Education/Training Program1184204174
- Gustavo Gryzinski, MDStudent in an Organized Health Care Education/Training Program1346982592
Verify Caroline Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 51442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average physician assistant in 2024
691 Medicare Part D claims for 250 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 87 claims were for opioids.
Most prescribed
- Tamsulosin Hcl130 claims
- Ciprofloxacin Hcl118 claims
- Hydrocodone-Acetaminophen84 claims
- Alfuzosin Hcl Er42 claims
- Trospium Chloride42 claims
- Finasteride35 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $14.00
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Uci Department OF UrologyOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Nguyen among 14,451 physician assistant records in California
Caroline Nguyen, P.A. is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 38% of them.
- NPI issued2014 · 38% of these records are older, 59% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2013 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
181 physician assistant records list a practice address in Orange
They are 181 of the 13,245 NPPES records with a practice address in Orange, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Orange → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Renee Barton, PAOrange, CA 928681205933371
- Michelle Boucher, PAOrange, CA 928681750337895
- Tom Chow, PA-COrange, CA 928681003803115
- Kuljinder Dosanjh, P.A.Orange, CA 928681225018237
- Valerie George, PA-COrange, CA 928681740362920
- Helge Helgesen, PAOrange, CA 928681669541330
- Jennifer Judelson, PA-COrange, CA 928681053477216
- Vasco Kidd, PAOrange, CA 928681396804019
Common questions
What is Caroline Nguyen, P.A.'s NPI number?
Caroline Nguyen, P.A.'s National Provider Identifier (NPI) is 1669897047, issued on Feb 21, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Nguyen, P.A. located?
The NPPES record lists a practice address at 101 The City Dr S Bldg 29, Orange, CA, 92868. Phone: (714) 456-7005. Providers update this record themselves, so call before visiting.
How can I verify Caroline Nguyen, P.A.'s license?
NPPES lists California license number 51442, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Caroline Nguyen, P.A. prescribe under Medicare Part D?
In 2024, Caroline Nguyen, P.A. had 691 Medicare Part D claims for 250 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Caroline Nguyen, P.A.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.