William Li, PA-C
Physician Assistant · Daly City, CA
William Li, PA-C is a physician assistant with a practice address in Daly City, California, and NPI 1447735006, issued on Sep 30, 2018. Check the license (California 56609, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Li
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 56609 CA
Self-reported in NPPES; status is on the state search - Practice location
- 325 Gellert Blvd, Daly City, CA 94015
- Phone
- (650) 270-2394
- Enumerated
- Sep 30, 2018
- Record last updated
- Sep 8, 2023
- Fax
- (650) 270-2396
- Medicare enrollment
- Enrolled (PECOS I20190415002413); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 325 Gellert Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Choi, PAPhysician Assistant1487106183
- Jose Robert Gaticales, APNFamily Nurse Practitioner1982948295
- Daniel Kwan, M.D.Emergency Medicine Physician1629335146
- Steven Zhong, PA-CPhysician Assistant1770097255
Verify William Li in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 56609Check 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
172 Medicare Part D claims for 124 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass19 claims
- Azithromycin18 claims
- Nitrofurantoin Mono-Macro18 claims
- Cephalexin12 claims
- Prednisone12 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): 96.5 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).
Bills Medicare through 2 group practices
- North East Medical ServicesSan Francisco, CA
- Ucsf Health Medical FoundationSan Bruno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Li among 14,451 physician assistant records in California
William Li, PA-C 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · 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).
19 physician assistant records list a practice address in Daly City
They are 19 of the 1,606 NPPES records with a practice address in Daly City, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Daly City → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kevin Blodgett, PA-CDaly City, CA 940151619173010
- Caroline Choi, PADaly City, CA 940151487106183
- Catherine Heymann, PA-CDaly City, CA 940151386790657
- Rehan Khan, PACDaly City, CA 940151942216569
- Carol Marraccini-Otto, PA-CDaly City, CA 940151063681302
- Tung Quach, P.A.-CDaly City, CA 940151215230503
- Stephanie Speizer, PA-CDaly City, CA 940151346556438
- Emily VanasseDaly City, CA 940151558031401
Common questions
What is William Li, PA-C's NPI number?
William Li, PA-C's National Provider Identifier (NPI) is 1447735006, issued on Sep 30, 2018. An NPI identifies a provider in billing; it is not a license.
Where is William Li, PA-C located?
The NPPES record lists a practice address at 325 Gellert Blvd, Daly City, CA, 94015. Phone: (650) 270-2394. Providers update this record themselves, so call before visiting.
How can I verify William Li, PA-C's license?
NPPES lists California license number 56609, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Li, PA-C prescribe under Medicare Part D?
In 2024, William Li, PA-C had 172 Medicare Part D claims for 124 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is William Li, PA-C's MIPS final score?
The 2023 MIPS final score is 96.5 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.