Li Yu
Internal Medicine Physician · San Francisco, CA
Li Yu is an internal medicine physician with a practice address in San Francisco, California, and NPI 1326344425, issued on Feb 7, 2011. Check the license (California A113382, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Li Yu
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A113382 CA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Stanyan St, San Francisco, CA 94117
- Phone
- (415) 668-1000
- Enumerated
- Feb 7, 2011
- Record last updated
- Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111109000441); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 450 Stanyan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blakney Adkins, MS OTR/LOccupational Therapist1881249522
- Leigh Allen, MSPTPhysical Therapist1982821229
- Mariam Amin, M.DStudent in an Organized Health Care Education/Training Program1588027981
- David Andino-Nieves, MDInternal Medicine Physician1639515638
- Allison AngurenStudent in an Organized Health Care Education/Training Program1376121152
- Nadine Antebi, PTNeurology Physical Therapist1962373753
Verify Li Yu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,528 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium152 claims
- Amlodipine Besylate130 claims
- Losartan Potassium81 claims
- Levothyroxine Sodium69 claims
- Lisinopril57 claims
- Alendronate Sodium50 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Li Yu among 17,696 internal medicine physician records in California
Li Yu is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1989 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pedro Aceves-Casillas, M.D.San Francisco, CA 941171144252396
- Charles Allison, M.D.San Francisco, CA 941171376541060
- Carl Bricca, D.O.San Francisco, CA 941171114925385
- Robert BrodySan Francisco, CA 941171801815600
- Kwok Chan, M.D.San Francisco, CA 941171063413714
- Diana Hilbert, M.D.San Francisco, CA 941171386642551
- William Kell, M.DSan Francisco, CA 941171528094547
- Kenneth Maybury, M.D.San Francisco, CA 941171295733459
Common questions
What is Li Yu's NPI number?
Li Yu's National Provider Identifier (NPI) is 1326344425, issued on Feb 7, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Li Yu located?
The NPPES record lists a practice address at 450 Stanyan St, San Francisco, CA, 94117. Phone: (415) 668-1000. Providers update this record themselves, so call before visiting.
How can I verify Li Yu's license?
NPPES lists California license number A113382, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Li Yu prescribe under Medicare Part D?
In 2024, Li Yu had 1,528 Medicare Part D claims for 259 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.