James Lewis Zehnder, MD
Anatomic Pathology Physician · Stanford, CA
James Lewis Zehnder, MD is an anatomic pathology physician with a practice address in Stanford, California, and NPI 1669508826, issued on Feb 24, 2007. Check the license (California G56192, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Lewis Zehnder
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology Physician 207ZP0101X
- License numbers
- G56192 CA
G55192 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Feb 24, 2007
- Record last updated
- Mar 13, 2024
- Medicaid ID
- 00G561920 CA
- Medicare enrollment
- Enrolled (PECOS I20041116000172); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Lewis Zehnder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,818.96
2 payments; by number, the most common kind was consulting fee; the largest payer was Novartis Pharmaceuticals Corporation. The 382 providers of this specialty with any payment received $3,145.53 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.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Anatomic Pathology Physician providers in California
There are 386 anatomic pathology physician records in California.
Other anatomic pathology physician records in California
- Abul Abbas, MBBSSan Francisco, CA1881652964
- John Abele, MDSacramento, CA1063493625
- Mitchell Adachi, MDSan Francisco, CA1720166366
- Brad Adler, M.D.Ventura, CA1003979618
- Ashna Aggarwal, MDSacramento, CA1235624362
- Naoki Akanuma, MD PHDSacramento, CA1881222974
- Najeeb Alshak, MDLos Angeles, CA1487721387
- Charles Amezcua, M.D.Santa Rosa, CA1245373992
- Joseph Anderson, M.D.San Rafael, CA1003002494
- Shehla Arain, M.D.Yorba Linda, CA1497927784
Common questions
What is James Lewis Zehnder, MD's NPI number?
James Lewis Zehnder, MD's National Provider Identifier (NPI) is 1669508826, issued on Feb 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Lewis Zehnder, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify James Lewis Zehnder, MD's license?
NPPES lists California license number G56192, 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.
What is James Lewis Zehnder, MD's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.