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

David Daniel Wishart Twa, MD, PHD, FRCPC, DABP

Individual provider Anatomic Pathology Physician · NPI 1710878632

David Daniel Wishart Twa, MD, PHD, FRCPC, DABP is an Anatomic Pathology Physician in Palo Alto, California. Licensed in California and Washington. Registered with an NPI since 2025.

Licensed in
CA, WA
In the registry since
2025
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

300 Pasteur Dr
Palo Alto, CA 94305-2200
Phone: (604) 729-5934
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology Physician (primary) Taxonomy 207ZP0101X · Licence A204311 (CA)
Anatomic Pathology Physician Taxonomy 207ZP0101X · Licence MD6162821 (WA)

Record details

NPI number1710878632
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD , FRCPC , DABP
Sole proprietorNo
NPI enumeratedJuly 10, 2025
Last updated in NPPESAugust 18, 2025
Certification dateAugust 18, 2025

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $29 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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