NPPES file of Aug 9, 2026

Robert Meng-Wu Tsou, M.D.

Otolaryngology Physician · Apple Valley, CA

Robert Meng-Wu Tsou, M.D. is an otolaryngology physician with a practice address in Apple Valley, California, and NPI 1801999107, issued on Sep 6, 2006. Check the license (California C41287, 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
1801999107
Name
Robert Meng-Wu Tsou
Credential
M.D.
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
C41287 CA
Self-reported in NPPES; status is on the state search
Practice location
15963 Quantico RD, Apple Valley, CA 92307
Phone
(760) 242-8100
Enumerated
Sep 6, 2006
Record last updated
Mar 10, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(760) 242-2932
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 15963 Quantico RD

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

  1. Ravi Patel, MD, MBA, FACP, FAHANeurology Physician1962667790
  2. Veena Patel, M.B.B.SNeurology Physician1942528286

Verify Robert Meng-Wu Tsou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C41287
    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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86% fewer Medicare Part D claims than the average otolaryngology physician in 2024

75 Medicare Part D claims for 16 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.

  1. Robert Tsou75
  2. Specialty average541

Most prescribed

  1. Azithromycin12 claims
  2. Ipratropium Bromide12 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.

Robert Meng-Wu Tsou among 1,212 otolaryngology physician records in California

Robert Meng-Wu Tsou, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otolaryngology Physician providers in California

There are 1,212 otolaryngology physician records in California.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. Kathleen Jones, M.D.Apple Valley, CA 923071548322688
  2. Carolyn Doherty, MDColton, CA 923241003862350
  3. Jeffrey Roberts, MDColton, CA 923241225145915
  4. Michelle Ghostine, MDFontana, CA 923351548463854
  5. Lisa Lee, MDFontana, CA 923351396956694
  6. Nathan Lee, MDFontana, CA 923351881223915
  7. Zrria Richardson, M.D.Fontana, CA 923351174886113
  8. David Lam, MD, MSRancho Mirage, CA 922701841828647

Common questions

What is Robert Meng-Wu Tsou, M.D.'s NPI number?

Robert Meng-Wu Tsou, M.D.'s National Provider Identifier (NPI) is 1801999107, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Meng-Wu Tsou, M.D. located?

The NPPES record lists a practice address at 15963 Quantico RD, Apple Valley, CA, 92307. Phone: (760) 242-8100. Providers update this record themselves, so call before visiting.

How can I verify Robert Meng-Wu Tsou, M.D.'s license?

NPPES lists California license number C41287, 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 Robert Meng-Wu Tsou, M.D. prescribe under Medicare Part D?

In 2024, Robert Meng-Wu Tsou, M.D. had 75 Medicare Part D claims for 16 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.