NPPES file of Aug 9, 2026

Joyce Xiang Wu Lee, M.D.

Allergy & Immunology (Internal Medicine) Physician · Los Angeles, CA

Joyce Xiang Wu Lee, M.D. is an allergy & immunology (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1114243136, issued on Apr 15, 2010. Check the license (California 120350, 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
1114243136
Name
Joyce Xiang Wu Lee
Credential
M.D.
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License numbers
120350 CA
A120350 CA
Self-reported in NPPES; status is on the state search
Practice location
Ucla Internal Medicine, Los Angeles, CA 90095
Phone
(310) 825-7375
Enumerated
Apr 15, 2010
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131029001084); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2010
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.
Download card Updates feed

8 nearest allergy & immunology (internal medicine) physician records → All 81 in California → Look up another NPI →

Verify Joyce Xiang Wu Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 120350    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

21% more Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024

957 Medicare Part D claims for 266 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Joyce Lee957
  2. Specialty average789

Most prescribed

  1. Breyna106 claims
  2. Azelastine Hcl88 claims
  3. Albuterol Sulfate Hfa81 claims
  4. Azelastine-Fluticasone79 claims
  5. Prednisone73 claims
  6. Wixela Inhub66 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: $78.92

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joyce Lee$78.92
  2. Specialty average$7,456.30

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 GroupLos Angeles, CA

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

Joyce Xiang Wu Lee among 81 allergy & immunology (internal medicine) physician records in California

Joyce Xiang Wu Lee, M.D. is one of 81 allergy & immunology (internal medicine) physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 51% of them.

  • NPI issued2010 · 51% of these records are older, 47% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2010 · median 2010 among the 46 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology (Internal Medicine) Physician providers in California

There are 81 allergy & immunology (internal medicine) physician records in California.

All 81 in California → Every provider in Los Angeles → Allergy & Immunology (Internal Medicine) Physician nationwide →

The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes

  1. William Klaustermeyer, MDLos Angeles, CA 900951265451165
  2. Andre Nel, MDLos Angeles, CA 900951023037702
  3. Andrew Saxon, MDLos Angeles, CA 900951174543318
  4. Howard Strom, MDLos Angeles, CA 900681407153000
  5. Robert Meth, MDLos Angeles, CA 900671053387837
  6. Suzanne Cassel, MDWest Hollywood, CA 900481316164015
  7. Sheila Bonilla-Tandoc, MD, MSLos Angeles, CA 900331457387805
  8. Edward Hu, M.D.Los Angeles, CA 900331700045150

Common questions

What is Joyce Xiang Wu Lee, M.D.'s NPI number?

Joyce Xiang Wu Lee, M.D.'s National Provider Identifier (NPI) is 1114243136, issued on Apr 15, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Joyce Xiang Wu Lee, M.D. located?

The NPPES record lists a practice address at Ucla Internal Medicine, Los Angeles, CA, 90095. Phone: (310) 825-7375. Providers update this record themselves, so call before visiting.

How can I verify Joyce Xiang Wu Lee, M.D.'s license?

NPPES lists California license number 120350, 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 Joyce Xiang Wu Lee, M.D. prescribe under Medicare Part D?

In 2024, Joyce Xiang Wu Lee, M.D. had 957 Medicare Part D claims for 266 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.