Roxanne Leung, MD
Allergy Physician · San Jose, CA
Roxanne Leung, MD is an allergy physician with a practice address in San Jose, California, and NPI 1730235334, issued on Jan 26, 2007. Check the license (California A103378, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roxanne Leung
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- A103378 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4050 Moorpark Ave, San Jose, CA 95117
- Phone
- (408) 243-2700
- Enumerated
- Jan 26, 2007
- Record last updated
- Dec 12, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080731000808); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 157 in California → Look up another NPI →
Also registered at 4050 Moorpark Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alan Goldsobel, MDAllergy & Immunology Physician1063528321
- Richika Makol, MDAllergy Physician1770144909
- James Wolfe, MDAllergy & Immunology Physician1194733428
Verify Roxanne Leung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103378Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average allergy physician in 2024
526 Medicare Part D claims for 110 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Montelukast Sodium110 claims
- Hydroxyzine Hcl39 claims
- Prednisone38 claims
- Albuterol Sulfate Hfa37 claims
- Trelegy Ellipta24 claims
- Azelastine Hcl21 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
- Ucsf Health Medical FoundationRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roxanne Leung among 157 allergy physician records in California
Roxanne Leung, MD is one of 157 allergy physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 69% of them.
- NPI issued2007 · 69% of these records are older, 17% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2003 · median 1992 among the 82 with a school on file
- Record last updated2013 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in California
There are 157 allergy physician records in California.
All 157 in California → Every provider in San Jose → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Richika Makol, MDSan Jose, CA 951171770144909
- Theodore Chu, M.D.San Jose, CA 951281194765123
- Alan Heller, M.D.San Jose, CA 951281831204882
- John Kellogg, M.D., M.S.San Jose, CA 951281932149697
- Anlin Xu, M.D.San Jose, CA 951281285681007
- Jeffrey Balduzzi, M.D.Stockton, CA 952071235405952
- Wallace Carroll, MDModesto, CA 953551003874124
- Melissa ItsaraRichmond, CA 948011417375528
Common questions
What is Roxanne Leung, MD's NPI number?
Roxanne Leung, MD's National Provider Identifier (NPI) is 1730235334, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roxanne Leung, MD located?
The NPPES record lists a practice address at 4050 Moorpark Ave, San Jose, CA, 95117. Phone: (408) 243-2700. Providers update this record themselves, so call before visiting.
How can I verify Roxanne Leung, MD's license?
NPPES lists California license number A103378, 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 Roxanne Leung, MD prescribe under Medicare Part D?
In 2024, Roxanne Leung, MD had 526 Medicare Part D claims for 110 beneficiaries; the average among allergy physician prescribers was 750. 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.