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

Dr. John A. Thorson, MD, PHD

Individual provider Molecular Genetic Pathology (Pathology) Physician · NPI 1225120454

Dr. John A. Thorson, MD, PHD is a Molecular Genetic Pathology (Pathology) Physician in San Diego, California. Licensed in California, Michigan and Missouri. Registered with an NPI since 2006.

Licensed in
CA, MI, MO
In the registry since
2006
Specialties on file
6
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

200 W Arbor Dr
San Diego, CA 92103-9001
Phone: (619) 543-7874
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence A82079 (CA)
Molecular Genetic Pathology (Pathology) Physician Taxonomy 207ZP0007X · Licence 2006023097 (MO)
Molecular Genetic Pathology (Pathology) Physician Taxonomy 207ZP0007X · Licence 4301081249 (MI)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X · Licence 2006023097 (MO)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X · Licence 4301081249 (MI)
Molecular Genetic Pathology (Medical Genetics) Physician Taxonomy 207SM0001X · Licence A82079 (CA)

Record details

NPI number1225120454
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESFebruary 12, 2009

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