James Lewis Zehnder, MD

Anatomic Pathology

Pathology

James Lewis Zehnder is an Anatomic Pathology specialist based in Stanford, CA with over 42 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: HEMATOLOGY

(650) 723-4000Stanford, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

With over 42 years in pathology, James Lewis Zehnder, MD is a long-established anatomic pathology specialist in Stanford. He graduated from Tufts University School of Medicine in 1984 and has 42+ years of clinical experience. A pathologist deals with the causes and nature of disease and contributes to diagnosis. CMS MIPS quality score: 76.5/100 (2023).

At a glance

  • Federal MIPS score higher than 30% of MIPS-scored doctors in California
  • Virtual visits available — no app or travel required
42+ years experienceNPI since 2007

Older · 801dNPPES updated 2024-03-13 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

300 Pasteur Dr, Stanford, CA 94305-2200

CMS Clinical Data

How Does This Doctor Compare?

MIPS Score

2023

76.5/100

California avg: 78.6 · US avg: 83.6

Lower than most doctors nationally(-7.1 pts)

How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.

Medicare Patients

13

Unique beneficiaries

Boutique practice

Percentile rankings compared against 9,360 reporting peers in California.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Industry Payment Transparency

$2.8k received from industry

2 transactions reported in 2024 ·Moderate tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to James Lewis Zehnder's NPI.

Patient Reviews

No patient reviews yet. If you've seen James Lewis Zehnder, your feedback helps other patients.

Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →

Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1984

    Tufts University School of Medicine

  2. Board certified · Mar 12, 2024

    Self-reported via NPPES

  3. 42 years in practice

    Senior practitioner

PathologyAnatomic Pathology in StanfordAllopathic & Osteopathic Physicians

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Taxonomy: 207ZP0101X

Education & Training

Tufts University School of Medicine (Class of 1984)

Practice Footprint

Primary hospital affiliation: Critical Access Hospitals

CMS Certification Number: 191319

View hospital on Medicare Care Compare

Virtual Anatomic Pathology Care With James Lewis Zehnder

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with James Lewis Zehnder for follow-ups, medication reviews, and ongoing care — no travel to Stanford required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about James Lewis Zehnder

NPI records show Dr. Zehnder as active with telehealth listed in Stanford, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 723-4000.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

Is this your profile?

Verify credentials, update practice details, and manage telehealth.

Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

Related Providers

Anatomic Pathology in California

See all