Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Barnard Welsh, MD, PHD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1093042830

Dr. John Barnard Welsh, MD, PHD is an Anatomic Pathology & Clinical Pathology Physician in San Diego, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2009
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

6340 Sequence Dr
San Diego, CA 92121-4356
Phone: (619) 209-1910
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence A64058 (CA)

Record details

NPI number1093042830
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedNovember 16, 2009
Last updated in NPPESJuly 11, 2022
Certification dateJuly 11, 2022

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