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

Gregory Mark Welsh, MD

Individual provider Pediatrics Physician · NPI 1982600342

Gregory Mark Welsh, MD is a Pediatrics Physician in Stanford, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
Specialties on file
2
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
Stanford, CA 94305-2200
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence C167888 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence C167888 (CA)

Record details

NPI number1982600342
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2005
Last updated in NPPESApril 28, 2024
Certification dateApril 28, 2024
Mailing address300 Pasteur Dr, Stanford, CA 94305-2200

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