Tolan T. Nguyen, PA
Physician Assistant · Orange, CA
Tolan T. Nguyen, PA is a physician assistant with a practice address in Orange, California, and NPI 1114114394, issued on Oct 1, 2007. Check the license (California PA 19184, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tolan T. Nguyen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA 19184 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 W Stewart Dr, Orange, CA 92868
- Phone
- (714) 633-9111
- Enumerated
- Oct 1, 2007
- Record last updated
- Mar 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- PA19184 CA
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1100 W Stewart Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tolan T. 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 PA 19184Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average physician assistant in 2024
15 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $263.00
10 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. 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.
Tolan T. Nguyen among 14,451 physician assistant records in California
Tolan T. Nguyen, PA 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 2007, is newer than 13% of them.
- NPI issued2007 · 13% of these records are older, 78% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2008 · 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 Tolan T. Nguyen, PA's NPI number?
Tolan T. Nguyen, PA's National Provider Identifier (NPI) is 1114114394, issued on Oct 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tolan T. Nguyen, PA located?
The NPPES record lists a practice address at 1100 W Stewart Dr, Orange, CA, 92868. Phone: (714) 633-9111. Providers update this record themselves, so call before visiting.
How can I verify Tolan T. Nguyen, PA's license?
NPPES lists California license number PA 19184, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tolan T. Nguyen, PA prescribe under Medicare Part D?
In 2024, Tolan T. Nguyen, PA had 15 Medicare Part D claims; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.