Lien P. Nguyen, PA
Physician Assistant · San Diego, CA
Lien P. Nguyen, PA is a physician assistant with a practice address in San Diego, California, and NPI 1780700948, issued on Mar 21, 2007. Check the license (California PA17043, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lien P. Nguyen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA17043 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Mar 21, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040131000289); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 4647 Zion Ave
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Verify Lien P. 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 PA17043Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
173 Medicare Part D claims for 95 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 66 claims were for opioids.
Most prescribed
- Ibuprofen53 claims
- Oxycodone Hcl39 claims
- Tramadol Hcl24 claims
- Metronidazole12 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.
Industry payments in 2024: $271.99
7 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lien P. Nguyen among 14,451 physician assistant records in California
Lien P. 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 fileYes · 50% of these records are
- Graduated2003 · median 2018 among the 7,214 with a school on file
- Record last updated2021 · 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).
747 physician assistant records list a practice address in San Diego
They are 747 of the 52,937 NPPES records with a practice address in San Diego, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Diego → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Catherine Anderson, NPSan Diego, CA 921201811045750
- Sophea Bergen, PA-CSan Diego, CA 921201558300665
- John Frost, PASan Diego, CA 921201518015460
- Christopher Gallo, PASan Diego, CA 921201669520581
- Francisco Garcia, PASan Diego, CA 921201649328584
- John Hollingsworth, PACSan Diego, CA 921201548367527
- Joanne Manalo, PA-CSan Diego, CA 921201003986134
- Peter Mazzarese, P.A.San Diego, CA 921201124099387
Common questions
What is Lien P. Nguyen, PA's NPI number?
Lien P. Nguyen, PA's National Provider Identifier (NPI) is 1780700948, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lien P. Nguyen, PA located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Lien P. Nguyen, PA's license?
NPPES lists California license number PA17043, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Lien P. Nguyen, PA prescribe under Medicare Part D?
In 2024, Lien P. Nguyen, PA had 173 Medicare Part D claims for 95 beneficiaries; 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.