NPPES file of Aug 9, 2026

James Yenming Chao, M.D.

Cardiovascular Disease Physician · Mountain View, CA

James Yenming Chao, M.D. is a cardiovascular disease physician with a practice address in Mountain View, California, and NPI 1144455940, issued on May 22, 2009. Check the license (California A118680, 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
1144455940
Name
James Yenming Chao
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
A118680 CA
Self-reported in NPPES; status is on the state search
Practice location
525 South Dr Ste 105, Mountain View, CA 94040
Phone
(650) 962-0242
Enumerated
May 22, 2009
Record last updated
Apr 15, 2024
Fax
(650) 962-8657
Medicare enrollment
Enrolled (PECOS I20150605002713); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2009
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 cardiovascular disease physician records → All 2,574 in California → Look up another NPI →

Verify James Yenming Chao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A118680    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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Industry payments in 2024: $1,673.09

47 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Chao$1,673.09
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

James Yenming Chao among 2,574 cardiovascular disease physician records in California

James Yenming Chao, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 72% of them.

  • NPI issued2009 · 72% of these records are older, 26% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2009 · median 1999 among the 1,742 with a school on file
  • Record last updated2024 · 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 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

All 2,574 in California → Every provider in Mountain View → Cardiovascular Disease Physician nationwide →

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Clayton Bavor, M.D.Mountain View, CA 940401912912569
  2. Edward Bough, M.D.Mountain View, CA 940401417962994
  3. Joseph Chao, M.D.Mountain View, CA 940401992891493
  4. Catherine Collings, M.D.Mountain View, CA 940401447253349
  5. Frank Galli, M.D.Mountain View, CA 940401790788693
  6. Surendra Gudapati, M.D.Mountain View, CA 940401245262716
  7. Martin Klughaupt, M.D.Mountain View, CA 940401558378711
  8. Felix Lee, MDMountain View, CA 940401811975113

Common questions

What is James Yenming Chao, M.D.'s NPI number?

James Yenming Chao, M.D.'s National Provider Identifier (NPI) is 1144455940, issued on May 22, 2009. An NPI identifies a provider in billing; it is not a license.

Where is James Yenming Chao, M.D. located?

The NPPES record lists a practice address at 525 South Dr Ste 105, Mountain View, CA, 94040. Phone: (650) 962-0242. Providers update this record themselves, so call before visiting.

How can I verify James Yenming Chao, M.D.'s license?

NPPES lists California license number A118680, 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.

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.