William T. Li, PA-C

  • Redwood City, CA
  • Physician assistant
NPI1447735006PAC ID4385985670
Medicare services, 2024
187
Medicare patients, 2024
129
Part D claims, 2024
172
MIPS score, 2024
100
Hospital affiliations
4
Practice address
170 Alameda De Las Pulgas, Redwood City, CA 94062
Practice phone
Call (650) 369-5811
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Dignity Health - Sequoia Hospital

Hospital · Redwood City, California

See all 13 affiliations

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William T. Li is a physician assistant in Redwood City, California

William Li practices at Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health.

William Li's NPI, 1447735006, was assigned on September 30, 2018. William Li holds California license 56609.

NPI and contact details
Medicare PAC ID
4385985670
NPI enumeration date
September 30, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(650) 369-5811
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
29
Medical school graduation
2023

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William T. Li practices at Dignity Health - Sequoia Hospital in Redwood City, California

William Li's primary practice is Dignity Health - Sequoia Hospital, at 170 Alameda De Las Pulgas, Redwood City, CA 94062 in San Mateo County. The practice phone is (650) 369-5811.

Source: Dmand AI Affiliation Data

William T. Li is affiliated with 8 sites of care and 5 medical groups

William Li's primary practice is Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health. William Li is also affiliated with California Pacific Medical Center Van Ness Campus. The medical group on file is UCSF Benioff Children’s Physicians. Dmand AI also links William Li to 2 more hospitals, 4 medical groups, 2 hospital outpatient departments, 1 community health center and 1 group practice or clinic, each named with a free account.

See all 13 affiliations for William Li

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at William T. Li's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Li practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - Sequoia HospitalAvailable with a free account
+7 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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William T. Li is one of 11,482 physician assistants in California

Physician assistant is William Li's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Li is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense 56609 · taxonomy 363A00000X

Clinical focus

Dmand AI lists acute sinusitis, acute skin infection, adjustment disease, ankle or foot injury, conjunctivitis, contact dermatitis, ear infection and facial skin infection among the conditions William Li treats.

Physician assistants near William Li

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

William T. Li billed Medicare for 187 services in 2024

CMS data shows 187 Medicare services from William Li across 6 procedure codes in 2024, for 129 Medicare patients. Medicare paid $9,891 for them. Every service was in an office.

Medicare services, 2024187
Medicare patients129
Paid by Medicare$9,891
Procedure codes6

William Li's Medicare services by type, 2024

  1. Office and hospital visits106
  2. Lab and pathology60
  3. Imaging21

William Li compared with the California median for physician assistants, 2024

  • William Li
  • California median
Medicare services
187vs 2048% below
Medicare patients
129vs 10523% above
Part D claims
79vs 24367% below

Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.

William Li's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by William Li

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

William T. Li treated 129 Medicare patients in 2024, average age 74

CMS counts 129 Medicare patients who saw William Li in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high cholesterol, and 64% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts William Li's median patient age at 69, with 56% women.

Medicare patients, 2024129
Average age74
Average risk score1.12
Also on Medicaid12%

William Li's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

William Li's Medicare patients by sex, 2024

  • Women8667%
  • Men4333%

Chronic conditions among William Li's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure64%
  3. Arthritis48%
  4. Diabetes33%
  5. Chronic kidney disease23%
  6. Mood disorders23%
  7. Depression22%
  8. Ischemic heart disease21%

Share of Medicare patients with each condition. A patient can have several.

William Li's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women56%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

William T. Li wrote 172 Medicare Part D claims in 2024

In 2024, William Li wrote 172 Medicare Part D claims for 124 patients. 88% of them were for generic drugs. CMS names the drug for 79 of them, across 5 drugs with 11 or more claims each, at $480 in total drug cost.

Part D claims, 2024172
Drugs named by CMS5
Total drug cost$480
Part D patients124

William Li's Part D claims by kind of drug, 2024

  • Generic151 claims88%
  • Brand-name21 claims12%

William Li's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in William Li's Part D claims, 2024

  • Antibiotics48%82 of 172 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by William Li

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

William T. Li scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for William Li for performance year 2024, reported through an alternative payment model (APM). William Li accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

William Li's MIPS scores, performance year 2024

  • 100of 100Final score
  • 86.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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William T. Li received $23 in industry payments in 2025

CMS Open Payments shows 1 general payment to William Li from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Verrica Pharmaceuticals Inc. paid the most, $23.

Companies that paid William Li the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to William Li

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for William T. Li's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William T. Li

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William T. Li's NPI number?

William T. Li's NPI number is 1447735006. It was assigned on September 30, 2018, and it is active in the NPI Registry.

What does William T. Li specialize in?

William T. Li is a physician assistant in Redwood City, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does William T. Li practice?

William Li practices at 170 Alameda De Las Pulgas, Redwood City, CA 94062. William Li's primary practice is Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health. Dmand AI also links William Li to 2 hospitals, 4 medical groups, 2 hospital outpatient departments, 1 community health center and 1 group practice or clinic.

What is William T. Li's office phone number?

The practice phone on file for William Li is (650) 369-5811.

What is William T. Li's medical license number?

William Li holds California license 56609.

Which hospitals is William T. Li affiliated with?

William Li practices at Dignity Health - Sequoia Hospital in Redwood City, California. William Li is also affiliated with California Pacific Medical Center Van Ness Campus. Dmand AI links William Li to 2 more hospitals.

What medical group is William T. Li part of?

William Li is linked to UCSF Benioff Children’s Physicians. Dmand AI links William Li to 4 more medical groups.

Does William T. Li accept Medicare?

Yes. CMS data shows William Li billed Medicare for 187 services in 2024, and William Li accepts Medicare assignment.

What is William T. Li's MIPS score?

William Li's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does William T. Li see?

CMS counts 129 Medicare patients who saw William Li in 2024, with an average age of 74.

Show 4 more questionsShow fewer questions

What services does William T. Li bill to Medicare?

In 2024, William Li's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and lab and pathology test (87635).

What drugs does William T. Li prescribe most?

In 2024 Medicare Part D data, William Li's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Azithromycin and Nitrofurantoin Mono-Macro.

Has William T. Li received payments from drug or device companies?

CMS Open Payments shows $23 in general payments to William Li from 1 company from 2025 to 2025. The largest total came from Verrica Pharmaceuticals Inc.

How long has William T. Li been practicing?

William Li graduated from medical school in 2023, 3 years ago.

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