NPPES file of Aug 9, 2026

William Yuen Tu, MD

Internal Medicine Physician · Woodland Hills, CA

William Yuen Tu, MD is an internal medicine physician with a practice address in Woodland Hills, California, and NPI 1346260502, issued on Jul 20, 2006. Check the license (California A77859, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346260502
Name
William Yuen Tu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A77859 CA
Self-reported in NPPES; status is on the state search
Practice location
5601 Desoto Avenue, Woodland Hills, CA 91367
Phone
(888) 515-3500
Enumerated
Jul 20, 2006
Record last updated
Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A775890 CA
Medicare enrollment
Enrolled (PECOS I20110225000263); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5601 Desoto Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Teri Chang, PHARMDPharmacist1881229896
  2. Mehrnaz Saghafi, PHARM.D.Pharmacist1538239421

Verify William Yuen Tu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A77859
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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71% more Medicare Part D claims than the average internal medicine physician in 2024

5,444 Medicare Part D claims for 724 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 156 claims were for opioids.

  1. William Tu5,444
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium418 claims
  2. Amlodipine Besylate347 claims
  3. Losartan Potassium295 claims
  4. Rosuvastatin Calcium248 claims
  5. Simvastatin198 claims
  6. Lisinopril165 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.

Industry payments in 2024: $245.34

2 payments; by number, the most common kind was food and beverage; the largest payer was Dendreon Pharmaceuticals LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Tu$245.34
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupWoodland Hills, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Yuen Tu among 17,696 internal medicine physician records in California

William Yuen Tu, MD 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1999 · 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).

105 internal medicine physician records list a practice address in Woodland Hills

They are 105 of the 4,455 NPPES records with a practice address in Woodland Hills, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Paz Eilat, M.D.Woodland Hills, CA 913671053425108
  2. Thomas Gruhlke, M.D.Woodland Hills, CA 913671437132438
  3. Benjamin Hashem, MDWoodland Hills, CA 913671184668154
  4. Marion Ho, M.D.Woodland Hills, CA 913671003929225
  5. Allan Kurtz, D.O.Woodland Hills, CA 913671679656946
  6. Anthony Nguyen, MDWoodland Hills, CA 913671821162736
  7. Ting Pan, MDWoodland Hills, CA 913671205856986
  8. Vishal Patel, M.D.Woodland Hills, CA 913671316956337

Common questions

What is William Yuen Tu, MD's NPI number?

William Yuen Tu, MD's National Provider Identifier (NPI) is 1346260502, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Yuen Tu, MD located?

The NPPES record lists a practice address at 5601 Desoto Avenue, Woodland Hills, CA, 91367. Phone: (888) 515-3500. Providers update this record themselves, so call before visiting.

How can I verify William Yuen Tu, MD's license?

NPPES lists California license number A77859, 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 William Yuen Tu, MD prescribe under Medicare Part D?

In 2024, William Yuen Tu, MD had 5,444 Medicare Part D claims for 724 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.