Leonard Chiau Zhen See
Physician Assistant · Alhambra, CA
Leonard Chiau Zhen See is a physician assistant with a practice address in Alhambra, California, and NPI 1144856584, issued on Mar 17, 2020. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leonard Chiau Zhen See
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 335 S Almansor St Apt 335L, Alhambra, CA 91801
- Phone
- (858) 775-4194
- Enumerated
- Mar 17, 2020
- Record last updated
- Jun 7, 2022
- Medicare enrollment
- Enrolled (PECOS I20200921000632); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Leonard Chiau Zhen See in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average physician assistant in 2024
349 Medicare Part D claims for 140 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. 70 claims were for opioids.
Most prescribed
- Ibuprofen61 claims
- Omeprazole61 claims
- Ondansetron Odt48 claims
- Oxycodone Hcl45 claims
- Naloxone Hcl27 claims
- Celecoxib25 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: $53.05
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. 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
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leonard Chiau Zhen See among 14,451 physician assistant records in California
Leonard Chiau Zhen See 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 2020, is newer than 62% of them.
- NPI issued2020 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2020 · median 2018 among the 7,214 with a school on file
- Record last updated2022 · 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).
75 physician assistant records list a practice address in Alhambra
They are 75 of the 1,802 NPPES records with a practice address in Alhambra, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Alhambra → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Cristina Aragon-Navarrete, PA-CAlhambra, CA 918011912159559
- Courtney Boucher, PA-CAlhambra, CA 918011033594536
- Cynthia Chan, P.A.Alhambra, CA 918011285636787
- Tung Cheung, P.A.Alhambra, CA 918011992746010
- Eugene Delrosario, PAAlhambra, CA 918011720098874
- Sophia FongAlhambra, CA 918011578853180
- Huajun HeAlhambra, CA 918011437669397
- Jennifer Liu, PAAlhambra, CA 918011861913113
Common questions
What is Leonard Chiau Zhen See's NPI number?
Leonard Chiau Zhen See's National Provider Identifier (NPI) is 1144856584, issued on Mar 17, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Chiau Zhen See located?
The NPPES record lists a practice address at 335 S Almansor St Apt 335L, Alhambra, CA, 91801. Phone: (858) 775-4194. Providers update this record themselves, so call before visiting.
How can I verify Leonard Chiau Zhen See's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Leonard Chiau Zhen See prescribe under Medicare Part D?
In 2024, Leonard Chiau Zhen See had 349 Medicare Part D claims for 140 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.