NPPES file of Aug 9, 2026

Melissa Zheng Yan Wu, M.D.

Internal Medicine Physician · Los Gatos, CA

Melissa Zheng Yan Wu, M.D. is an internal medicine physician with a practice address in Los Gatos, California, and NPI 1053585331, issued on Apr 17, 2008. Check the license (California A103411, 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
1053585331
Name
Melissa Zheng Yan Wu
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A103411 CA
Self-reported in NPPES; status is on the state search
Practice location
15215 National Ave, Los Gatos, CA 95032
Phone
(408) 358-1841
Enumerated
Apr 17, 2008
Record last updated
Oct 1, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(408) 358-3562
Medicare enrollment
Enrolled (PECOS I20090921000011); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 2006
Telehealth
Offers telehealth (CMS)
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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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 15215 National Ave

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

  1. Richard Bobis, M.D.Internal Medicine Physician1407813843
  2. Krista Clinton, DPTPhysical Therapist1215188396
  3. Darryl Hein, M.D.Internal Medicine Physician1124077227
  4. Stacey Hein, INTERNAL MEDICINEInternal Medicine Physician1568429983
  5. Linda Lu, M.D.Geriatric Medicine (Internal Medicine) Physician1659546596
  6. Kathryn Meeks, P.T.Physical Therapist1134426885

Verify Melissa Zheng Yan 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 A103411    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

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33% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,143 Medicare Part D claims for 161 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Melissa Wu2,143
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium179 claims
  2. Amlodipine Besylate106 claims
  3. Losartan Potassium104 claims
  4. Levothyroxine Sodium100 claims
  5. Lorazepam80 claims
  6. Rosuvastatin Calcium65 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: $776.97

38 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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. Melissa Wu$776.97
  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.

Melissa Zheng Yan Wu among 17,696 internal medicine physician records in California

Melissa Zheng Yan Wu, M.D. 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 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2006 · median 2004 among the 11,065 with a school on file
  • Record last updated2011 · 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).

47 internal medicine physician records list a practice address in Los Gatos

They are 47 of the 1,905 NPPES records with a practice address in Los Gatos, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Los Gatos → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mandeep Ayer, M.D.Los Gatos, CA 950321205817111
  2. Gopi Ayer, M.D.Los Gatos, CA 950321396701512
  3. Richard Bobis, M.D.Los Gatos, CA 950321407813843
  4. Edward Brooks, MDLos Gatos, CA 950321831162338
  5. Andrew Chi, MD MPHLos Gatos, CA 950321700861275
  6. Jane Chien, MDLos Gatos, CA 950321588620785
  7. Linda Eglin, MDLos Gatos, CA 950321144223611
  8. Stacey Hein, INTERNAL MEDICINELos Gatos, CA 950321568429983

Common questions

What is Melissa Zheng Yan Wu, M.D.'s NPI number?

Melissa Zheng Yan Wu, M.D.'s National Provider Identifier (NPI) is 1053585331, issued on Apr 17, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Zheng Yan Wu, M.D. located?

The NPPES record lists a practice address at 15215 National Ave, Los Gatos, CA, 95032. Phone: (408) 358-1841. Providers update this record themselves, so call before visiting.

How can I verify Melissa Zheng Yan Wu, M.D.'s license?

NPPES lists California license number A103411, 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 Melissa Zheng Yan Wu, M.D. prescribe under Medicare Part D?

In 2024, Melissa Zheng Yan Wu, M.D. had 2,143 Medicare Part D claims for 161 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.

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.