William Meng, DO
Internal Medicine Physician · Mountain View, CA
William Meng, DO is an internal medicine physician with a practice address in Mountain View, California, and NPI 1215380670, issued on Jul 20, 2016. Check the license (California 20A19360, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Meng
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 20A19360 CA
25MB10793100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 701 E EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 934-7144
- Enumerated
- Jul 20, 2016
- Record last updated
- May 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20231204002649); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 701 E EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Meng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
33 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of 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: $1,463.16
5 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, 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.
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
- Rutgers Health-Rwj Scleroderma ProgramNew Brunswick, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Meng among 17,696 internal medicine physician records in California
William Meng, DO 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 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).
119 internal medicine physician records list a practice address in Mountain View
They are 119 of the 2,467 NPPES records with a practice address in Mountain View, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Mountain View → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ravin Agah, M.D.Mountain View, CA 940401528075017
- Galina Balon, MDMountain View, CA 940401114932571
- Barbara Campbell, M.D.Mountain View, CA 940401679597405
- Steven Carlson, MDMountain View, CA 940401902813496
- Dean Cummings, MDMountain View, CA 940401265454029
- Vivien D'Andrea, MDMountain View, CA 940401760497135
- Francis Garrett, MDMountain View, CA 940401295799724
- David Kaufman, MDMountain View, CA 940401720013782
Common questions
What is William Meng, DO's NPI number?
William Meng, DO's National Provider Identifier (NPI) is 1215380670, issued on Jul 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Meng, DO located?
The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7144. Providers update this record themselves, so call before visiting.
How can I verify William Meng, DO's license?
NPPES lists California license number 20A19360, 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 William Meng, DO prescribe under Medicare Part D?
In 2024, William Meng, DO had 33 Medicare Part D claims for 19 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.
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.