DR. JOHN A. THORSON MD PHD NPI 1225120454

NPI Information

  • NPI: 1225120454
  • Provider Name: DR. JOHN A. THORSON, MD, PHD
  • Classification: Pathology - 207ZP0105X
  • Specialization: Clinical Pathology/Laboratory Medicine
  • Entity Type: Individual
  • Address: 200 W ARBOR DR
    SAN DIEGO, CA
    ZIP 92103
  • Phone: (619) 543-7874

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NPI Details

DR. John A. Thorson, MD, PHD is a clinical pathology/laboratory medicine pathology in San Diego, CA. The provider is a pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease. DR. John A. Thorson, MD, PHD NPI is 1225120454. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

200 W ARBOR DR
SAN DIEGO, CA
ZIP 92103-001
Phone: (619) 543-7874

The enumeration date for this NPI number is 9/28/2006 and was last updated on 2/12/2009.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207SM0001XMedical GeneticsMolecular Genetic PathologyA82079CALIFORNIANo
2207ZP0007XPathologyMolecular Genetic Pathology2006023097MISSOURINo
3207ZP0007XPathologyMolecular Genetic Pathology4301081249MICHIGANNo
4207ZP0105XPathologyClinical Pathology/Laboratory Medicine2006023097MISSOURINo
5207ZP0105XPathologyClinical Pathology/Laboratory Medicine4301081249MICHIGANNo
6207ZP0105XPathologyClinical Pathology/Laboratory MedicineA82079CALIFORNIAYes

Other Identifiers

The following information regarding additional identifiers associated to this NPI record includes the other identifier number, identifier type, identifier state and issuer.

No. Other Provider Identifier Other Provider Identifier Type Other Provider Identifier State Other Provider Identifier Issuer
1H18399MEDICARE UPINMISSOURI
2# PENDINGMEDICAIDMISSOURI
3H18399MEDICARE UPINMICHIGAN
4# PENDINGMEDICARE ID-TYPE UNSPECIFIEDMISSOURIMEDICARE PROV. #
50H16101084MEDICARE ID-TYPE UNSPECIFIEDMICHIGAN
64544083MEDICAIDMICHIGAN

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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