Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Ward Macarthur, MD

Individual provider Surgery Physician · NPI 1891957106

John Ward Macarthur, MD is a Thoracic Surgery in Palo Alto, California. Graduated from Columbia University College of Physicians and Surgeons in 2008, 18 years ago. Practices with Stanford Health Care, a 3,085-clinician group and accepts Medicare assignment. Licensed in California and Pennsylvania.

Years since qualifying
18
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
CA, PA
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence A128776 (CA)
Surgery Physician Taxonomy 208600000X · Licence MT193411 (PA)
Surgery Physician Taxonomy 208600000X · Licence A128776 (CA)

Record details

NPI number1891957106
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2008
Last updated in NPPESApril 27, 2024
Certification dateApril 27, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyTHORACIC SURGERY
Also practisesGENERAL SURGERY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 2008 (18 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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