Ada Wei Hsin Lien, PA-C, MPH
Medical Physician Assistant · San Leandro, CA
Ada Wei Hsin Lien, PA-C, MPH is a medical physician assistant with a practice address in San Leandro, California, and NPI 1174053573, issued on Jun 18, 2017. Check the license (California 54561, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ada Wei Hsin Lien
- Credential
- PA-C, MPH
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 54561 CA
Self-reported in NPPES; status is on the state search - Practice location
- 13855 E 14TH St, San Leandro, CA 94578
- Phone
- (510) 667-4545
- Enumerated
- Jun 18, 2017
- Record last updated
- Jun 18, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170823002195); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 13855 E 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aaron Burchfield, MDEmergency Medicine Physician1255312237
- Vanessa Calderon, MDEmergency Medicine Physician1275854820
- Joel ChiuEmergency Medicine Physician1295726446
Verify Ada Wei Hsin Lien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54561Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average medical physician assistant in 2024
180 Medicare Part D claims for 114 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Cephalexin22 claims
- Ibuprofen15 claims
- Gabapentin12 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 practice group's MIPS final score for 2023 (Medicare payment program): 91 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Alameda Health SystemSan Leandro, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ada Wei Hsin Lien among 3,376 medical physician assistant records in California
Ada Wei Hsin Lien, PA-C, MPH is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2017 · median 2012 among the 1,347 with a school on file
- Record last updated2017 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in San Leandro → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Paige Anderson, PA-CSan Leandro, CA 945781285116020
- Brianne CassidySan Leandro, CA 945781982171377
- Jude Fox, PAAshland, CA 945781548415508
- Christine Le, PA-CSan Leandro, CA 945781104605302
- Gee Tsou, PA-CSan Leandro, CA 945781316147580
- Jennifer Bahm, PA-CSan Leandro, CA 945771528124716
- Lisa Morales, PASaint Helena, CA 945741184111551
- Mary Walter, PASaint Helena, CA 945741770890345
Common questions
What is Ada Wei Hsin Lien, PA-C, MPH's NPI number?
Ada Wei Hsin Lien, PA-C, MPH's National Provider Identifier (NPI) is 1174053573, issued on Jun 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ada Wei Hsin Lien, PA-C, MPH located?
The NPPES record lists a practice address at 13855 E 14TH St, San Leandro, CA, 94578. Phone: (510) 667-4545. Providers update this record themselves, so call before visiting.
How can I verify Ada Wei Hsin Lien, PA-C, MPH's license?
NPPES lists California license number 54561, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ada Wei Hsin Lien, PA-C, MPH prescribe under Medicare Part D?
In 2024, Ada Wei Hsin Lien, PA-C, MPH had 180 Medicare Part D claims for 114 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Ada Wei Hsin Lien, PA-C, MPH's MIPS final score?
The 2023 MIPS final score is 91 of 100, reported for the practice group. 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.