NPPES file of Aug 9, 2026

Diana Wu, MD

Family Medicine Physician · Los Angeles, CA

Diana Wu, MD is a family medicine physician with a practice address in Los Angeles, California, and NPI 1588001622, issued on May 30, 2013. Check the license (California 133043, 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
1588001622
Name
Diana Wu
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
133043 CA
20118 NH
Self-reported in NPPES; status is on the state search
Practice location
400 W 30TH St, Los Angeles, CA 90007
Phone
(213) 284-3200
Enumerated
May 30, 2013
Record last updated
Oct 6, 2022
Medicare enrollment
Enrolled (PECOS I20180531002862); accepts Medicare assignment
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 400 W 30TH St

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

  1. Bridget Abajian, PA-CMedical Physician Assistant1518677061
  2. Wendi Aboagye, PA-CPhysician Assistant1376134585
  3. Kathryn Adler, FNP-BCFamily Nurse Practitioner1891453304
  4. Letty Ajiz, WHNPWomen's Health Nurse Practitioner1396492641
  5. Anissa Alfaro, MSN FNP-CPrimary Care Nurse Practitioner1497151575
  6. Claire AndresenRegistered Nurse1629449038

Verify Diana Wu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 133043
    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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17% fewer Medicare Part D claims than the average family medicine physician in 2024

2,928 Medicare Part D claims for 380 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Diana Wu2,928
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium371 claims
  2. Losartan Potassium239 claims
  3. Amlodipine Besylate221 claims
  4. Metoprolol Succinate117 claims
  5. Alendronate Sodium97 claims
  6. Metformin Hcl Er78 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: $73.11

3 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Wu$73.11
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Asian Health ServicesOakland, CA
  2. Planned Parenthood Shasta Diablo IncWalnut Creek, CA

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

Diana Wu among 17,133 family medicine physician records in California

Diana Wu, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

829 family medicine physician records list a practice address in Los Angeles

They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Christina Cummings, M.D.Los Angeles, CA 900071639203730
  2. Erin Higginbotham, MDLos Angeles, CA 900071538694294
  3. Shahnaz HomayounshadLos Angeles, CA 900071174640429
  4. Isaac NgoLos Angeles, CA 900071427753540
  5. Huong Nguyen, FNP-CLos Angeles, CA 900071609229814
  6. Alexander Tauras, MDLos Angeles, CA 900071194137828
  7. Aisha Wagner, M.D.Los Angeles, CA 900071598102394
  8. David ZarrinparLos Angeles, CA 900071598802803

Common questions

What is Diana Wu, MD's NPI number?

Diana Wu, MD's National Provider Identifier (NPI) is 1588001622, issued on May 30, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Diana Wu, MD located?

The NPPES record lists a practice address at 400 W 30TH St, Los Angeles, CA, 90007. Phone: (213) 284-3200. Providers update this record themselves, so call before visiting.

How can I verify Diana Wu, MD's license?

NPPES lists California license number 133043, 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 Diana Wu, MD prescribe under Medicare Part D?

In 2024, Diana Wu, MD had 2,928 Medicare Part D claims for 380 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.