Yang Li, D.O.
Internal Medicine Physician · Fontana, CA
Yang Li, D.O. is an internal medicine physician with a practice address in Fontana, California, and NPI 1629411582, issued on Apr 10, 2013. Check the license (California 13641, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yang Li
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 13641 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (888) 750-0036
- Enumerated
- Apr 10, 2013
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160826002458); 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 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Solomon Abila, MDFamily Medicine Physician1871652479
- Jenny Abouelsood, M.D.Family Medicine Physician1457638512
- Marla Abrolat, MDPediatrics Physician1164593133
- Eduardo Acosta, MDPediatrics Physician1497803324
- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Yang Li in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 13641Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
473 Medicare Part D claims for 202 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil47 claims
- Furosemide30 claims
- Metronidazole22 claims
- Prednisone20 claims
- Ondansetron Odt18 claims
- Atorvastatin Calcium17 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
- Southern California Permanente Medical GroupOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yang Li among 17,696 internal medicine physician records in California
Yang Li, D.O. 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · 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).
111 internal medicine physician records list a practice address in Fontana
They are 111 of the 3,012 NPPES records with a practice address in Fontana, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fontana → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Te-Ie Lee, M.D.Fontana, CA 923351982613931
- Hollis Lee, MDFontana, CA 923351588736060
- Hoveda Mufti, M.D.Fontana, CA 923351598871493
- J Duc Nguyen, M.D.Fontana, CA 923351427018456
- Joseph Paredes, MDFontana, CA 923351457422420
- Ramesh Patel, MDFontana, CA 923351750480810
- Alex Quan, MDFontana, CA 923351659442630
- Gregory Shimizu, MDFontana, CA 923351154492130
Common questions
What is Yang Li, D.O.'s NPI number?
Yang Li, D.O.'s National Provider Identifier (NPI) is 1629411582, issued on Apr 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Yang Li, D.O. located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (888) 750-0036. Providers update this record themselves, so call before visiting.
How can I verify Yang Li, D.O.'s license?
NPPES lists California license number 13641, 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 Yang Li, D.O. prescribe under Medicare Part D?
In 2024, Yang Li, D.O. had 473 Medicare Part D claims for 202 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.